Discover
MCP coding tools
Model Context Protocol servers and coding surfaces agents actually wire up. Skills catalog links stay optional.
136 tools · Stars / Runtime / License chips · the Catch, not a ranking
- ActivepiecesMIT open-source Zapier alternative with MCP pieces★ 25.1kMulti-platformOpen-Core
The LICENSE file is MIT except packages/ee, which is under a commercial license, so this is open-core and some enterprise features need a paid plan. GitHub shows no single license. Still pre-1.0.
- Agent NativeDefine an action once and expose it to agents and every UI surface★ 7.4kNode.js · Multi-platformMIT (README/npm only)
Caveat: the repository has no root LICENSE file; the MIT claim is stated in the README and npm package, so confirm the artifact and version you ship. Vs CopilotKit, Mastra, and Rivet: Agent Native's wedge is the shared action contract across surfaces, not a complete agent runtime or orchestration platform. Distinct from Panel: this is a framework for exposing actions, not the youth workbench/product surface Panel would have been.
- Agent Toolkit for AWSApache-2.0 Agents/MCP toolkit — plugins, skills, AWS CLI MCP proxy★ 2.9kMulti-platformApache-2.0
★2767 in about 24 weeks (~115 a week): judge it on the MCP/skills substance, not the star count. Vs GitHub MCP / Cloudflare Agents MCP / Composio: those are GitHub-native MCP, CF Workers agent/MCP surfaces, or freemium multi-app toolkits — this catch is AWS-first Agents/MCP + CLI proxy from the aws org. Empty AWS creds = no live APIs; treat account/IAM as the real gate, not the Apache license.
- Agent-MCPAGPL MCP-native multi-agent + shared knowledge graph★ 1.3kPython · Multi-platformAGPL-3.0
Vs CrewAI and AG2: this is MCP-native multi-agent + shared graph for coding workflows, not a general role-orchestration framework alone. LICENSE/README are AGPL-3.0 while pyproject (and node metadata) still claim MIT — metadata conflict; treat AGPL as authoritative until packaging is fixed. Last push 2026-03-28; typical path expects an OpenAI key.
- AgentaoMIT governed Python agent runtime — permissions, MCP, memory, replay★ 309Multi-platformOSS/MIT
Vs Pi, Unreal Agent, and LangGraph: Agentao is a governed Python embed/CLI runtime, not a TS coding harness, durable-ops library, or graph orchestration framework. Docs and community skew bilingual/China-first; verify the embed API against your host before betting a production path on beta.
- AgentgatewayApache AI-native proxy — MCP & A2A security, obs, governance★ 5.4kMulti-platformApache-2.0
Vs litellm / weave-router / claude-code-router / nasiko: LiteLLM is a multi-provider LLM proxy; Weave/CCR are coding-agent model routers; Nasiko is harness discover/route/trace — Agentgateway’s catch is MCP/A2A agentic connectivity proxy (security/obs/governance), not model routing alone. Ops weight of a full proxy; pin a release and map which MCP/A2A clients you actually terminate.
- AgentMeshApache-2.0 private network for AI agents, from Google★ 1.1kGoApache-2.0
Still a release candidate (v0.1.0-rc.10), so expect changes, and the README says it is not an officially supported Google product. Every node has to enroll with a control plane, which you run and secure yourself.
- AI-Infra-GuardRed-team platform for agent, MCP, and skill infrastructure★ 6.9kMulti-platformApache-2.0
Vs Promptfoo and DeepEval: AI-Infra-Guard is an AI-infrastructure red-team platform, not only an eval runner; vs generic SAST, it understands agent/MCP/skill attack surfaces. Preserve the mandatory attribution — “Based on Tencent Zhuque Lab AI-Infra-Guard” — with the repository link in your deployment and derivative notices. Some tools also require an LLM_API_KEY, so a self-hosted scanner can still carry provider cost and credential risk.
- AIO SandboxApache one container: browser+shell+files+VS Code+Jupyter+MCP★ 6.2kMulti-platformApache-2.0
Vs E2B, Daytona, and CubeSandbox (Thu managed/microVM sandbox lane): this is a self-host all-in-one container workstation, not hosted Firecracker sandboxes, a managed workspace SaaS, or a KVM density control plane. Quickstart docs use `--security-opt seccomp=unconfined`; set `SANDBOX_API_KEY` or API/Jupyter/VNC stay open by default.
- Antigravity CLIGoogle terminal agent (agy) — Gemini CLI consumer successor★ 2.6kMulti-platformFreemium
Vs Gemini CLI (OSS @google/gemini-cli): Antigravity is the product successor for free/Pro/Ultra consumers — not a 1:1 flag clone (MCP config paths differ). Vs Claude Code / Cursor / OpenCode: Gemini-bound Google stack, not BYOK-agnostic. Enterprise Gemini CLI API/Vertex paths can remain; check which quota you are on.
- Apify MCP ServerMIT Apify Store MCP — agents scrape via thousands of Actors★ 11.9kNode.js · Multi-platformFreemium
Actor runs and Apify platform usage are billed — the MCP server is MIT, the data path is freemium/paid compute. Vs playwright-mcp / browser-use / firecrawl-class scrapers: those drive browsers or crawl APIs you own — Apify MCP’s catch is Store Actors as MCP tools. Legacy `/sse` endpoint removed — point clients at https://mcp.apify.com; pin which Actors agents may call.
- AppwriteBSD-3-Clause backend: auth, database, storage, functions★ 57.7kNode.js · BrowserBSD-3-Clause
Self-hosted Appwrite is a stack of many Docker containers, so plan for upgrades, backups and monitoring yourself; major-version upgrades have migration steps. You are buying into Appwrite's APIs and permission model, which makes leaving harder than with plain Postgres. The managed Appwrite Cloud is a separate commercial offering.
- ARTEMISApache Android NL automation + MCP for IDE coding agents★ 12.6kMulti-platformApache-2.0
Vs agent-browser, Browser Use, and Appium stacks: this is Google’s NL Android device/agent automation with MCP, not a Chrome a11y-tree CLI, a Python LLM browser framework, or a classic mobile test driver alone. Needs a real device/emulator toolchain and BYO multimodal model path (Gemini/Claude/GPT-4o/Qwen-VL badges); Android-only surface.
- AURAApache-2.0 MCP-ready SRE agent platform for production incidents★ 399Multi-platformApache-2.0
Vs generic coding agents: AURA is an SRE/incident harness, not a repo coding ADE. Deepest value shows when wired to real observability backends (Mezmo and others); empty integrations will not invent incidents. Hosted Mezmo sessions are optional — self-host is the OSS path.
- AWS MCP ServersApache-2.0 AWS Labs MCP servers for AWS services★ 9.8kMulti-platformApache-2.0
It is a monorepo where each server is installed and configured separately, so wiring up several means several entries in your MCP config. AWS bills normally for whatever the tools do — an agent that creates resources creates real charges. Vs agent-toolkit-for-aws (plugins, skills and a single AWS CLI MCP proxy in one package): this is the catalogue of individual, service-specific servers.
- awwwards-mcpMIT design-inspiration MCP — Awwwards search, DNA, screenshots★ 196Multi-platformOSS/MIT
Depends on awwwards.com HTML staying scrapeable — parsers can drift; run doctor/index when the site moves. Vs figma-context-mcp / open-design / niblet: Figma MCP is your file→code; OpenDesign is a design-agent workspace; Niblet’s full materials path is hosted/token — awwwards-mcp’s catch is free local award-site inspiration MCP. First index crawl takes minutes; respect robots/rate limits.
- BeeAI FrameworkApache-2.0 production agents in Python and TypeScript — MCP + A2A★ 3.4kMulti-platformApache-2.0
Vs Agno / VoltAgent / Google ADK (agent kits) and mcp-use / FastMCP (MCP server kits): BeeAI is dual-language agent framework + protocol serve, not a coding CLI and not a managed tool catalog. IBM open-source notice says community maintenance posture — treat it as OSS you own, not an IBM product SLA. A2A server is Python-first today.
- ByteStashGPL-3.0 self-hosted code snippet manager with MCP★ 2.6kMulti-platformGPL-3.0
Small project with a single main maintainer, so expect a narrower feature set than a full wiki. The MCP endpoint gives an assistant write access to your snippets, so scope the API key. GPL-3.0 if you redistribute modified versions.
- CC SwitchMIT desktop All-in-One manager for Claude Code, Codex, OpenCode, and peers★ 146kMulti-platformOSS/MIT
Vs editing each harness config by hand or using a single-vendor settings UI: CC Switch is a cross-harness desktop manager, not a coding agent and not an API gateway. Extreme star velocity (~136k aria-label) and a long sponsor/relay block on the README — treat momentum and affiliate banners as noise; verify releases from the GitHub/ccswitch.io path you trust.
- Chrome DevTools MCPOfficial Chrome DevTools as an MCP server for coding agents★ 53.8kNode.js · BrowserApache-2.0
chrome-devtools-mcp@1.8.0 engines: "^20.19.0 || ^22.12.0 || >=23". 20.16 and 20.17 fail; 20.19 LTS is in engines. “Node ≥ 22.12” and “Node 20 fails” are both too blunt — README “LTS” is marketing; engines is the catch. A CLI is provided for use without MCP; official CLI docs call it experimental. Complementary to Playwright MCP —DevTools-grade traces, Lighthouse, heap snapshots, and --autoConnect, not a generic scraper or a Playwright replacement. Officially supports Google Chrome and Chrome for Testing only. Exposes browser content to the MCP client—do not point it at sensitive sessions. Usage statistics on by default (opt out with --no-usage-statistics). Needs a current Chrome.
- Chrome MCP ServerMIT Chrome extension MCP server for your own browser★ 12.5kNode.js · BrowserOSS/MIT
Because it uses your real browser session, an agent can act as you on every site you are logged in to — point it at a separate Chrome profile for anything sensitive. The README still calls it early-stage, and the last commit was January 2026, so momentum has slowed. The extension is installed from GitHub releases, not the Chrome Web Store. Vs chrome-devtools-mcp (official from the Chrome DevTools team): that one gives DevTools-grade traces, Lighthouse and heap snapshots; mcp-chrome is about reusing your logged-in profile for everyday browsing tasks.
- Claude Code TemplatesMIT npx catalog of Claude Code agents, hooks, settings, and MCPs★ 32.7kMulti-platformOSS/MIT
Vs Claude Code itself and Skillbox/book-to-skill: this is a third-party template/ops catalog for Claude Code, not Anthropic's CLI product, not a self-hosted skills registry, and not a PDF→skill converter. Every installed agent/hook/MCP inherits that component's trust boundary — review what you enable, especially remote tunnels and third-party MCP endpoints. Bright Data and similar partner prompts in the README are optional affiliate-adjacent installs, not core MIT code.
- Cloudflare MCP ServersApache-2.0 official domain-specific Cloudflare MCP server suite★ 4.4kMulti-platformApache-2.0
Vs GitHub MCP, SuperGateway/mcp-remote, and cloudflare/mcp Code Mode: this repo is Cloudflare domain-specific typed tools, not GitHub's official MCP, not transport glue, and not the broad code-execution Cloudflare API MCP. Cloudflare account auth and token scope are the blast radius — over-scoped API tokens let an agent mutate production DNS/Workers. Pick Code Mode vs domain servers based on whether you want broad API coverage or curated tools.
- Codebase Memory MCPMIT persistent code knowledge graph MCP — static binary, no LLM key★ 46.9kMulti-platformOSS/MIT
Vs CodeGraph, Serena, and Supermemory: this is a persistent local code-graph MCP from a static binary, not an AST/MCP peer alone, an LSP-symbol MCP alone, or a general memory API. Default install is curl|bash; Microsoft Defender has false-positived release binaries (Wacatac-family); star velocity is extreme (~45k, repo created 2026-02) — verify checksums/VirusTotal links before trusting the pipeline.
- CodeGraphMIT local AST code knowledge graph for coding agents★ 74.4kMulti-platform · RustOSS/MIT
Index cost and residual context occupancy are real. Not a hosted SaaS brain. Distinct from Repomix/Gitingest (pack text) and Aider (edit loop).
- Codex-XCodex-specific desktop and CLI workspace for visual configuration and MCP skills★ 4.2kMulti-platformOSS/MIT
Vs T3 Code: Codex-X is Codex-specific visual configuration plus MCP/skills, not a broad remote coding environment or an independent coding model. It handles `auth.json`, supports third-party relays, and allows unrestricted prompt templates — review where credentials go, which endpoint receives requests, and what instructions can execute before using a release. Treat relays as a trust decision, not a convenience toggle.
- Coding Tools MCPApache-2.0 model-neutral 18-tool coding runtime over MCP★ 1.2kPython · Multi-platformApache-2.0
Vs Desktop Commander MCP: that is desktop-host terminal/files/processes; this is the chat-client→coding-agent hands layer (patches, interactive sessions, git) for any MCP client. Mid-★ (~1158) kept as Agents/MCP fill — Landlock is Linux-only; use Docker/VM for untrusted work.
- ComposioFreemium agent toolkits + managed OAuth across 1000+ apps★ 30.6kPython · Node.jsFreemium
Vs github-mcp (one official GitHub surface) and raw MCP servers: Composio is a multi-app auth/tool platform — you depend on their connector quality and hosted auth. Free tier exists; production is seat/usage freemium. Not a coding agent and not a browser fleet.
- Context ModeElastic-2.0 MCP sandbox for tool output and session continuity★ 30.8kMulti-platformElastic-2.0
Elastic License 2.0 is source-available, not OSI open-source; do not treat the `open-source` label as MIT/Apache freedom. ELv2 restricts offering the software as a hosted or managed service, so review the license before embedding or commercializing a managed Context Mode deployment. Vs a plain MCP server: this is output/context infrastructure, not another domain tool.
- Context7MIT MCP client for live library docs; free anon / free key★ 63.3kNode.js · Multi-platformFreemium
Vs Repomix/Gitingest (local repo pack/ingest): Context7 is hosted library-doc retrieval, not packing your tree. Backend index/crawl/parse is proprietary Upstash infra — free path is the MCP client, not a self-hostable crawl. You cannot stand up the index yourself.
- ContextForgeApache MCP+A2A+REST/gRPC→MCP gateway with governance + OTel★ 4.7kPython · Multi-platformApache-2.0
Vs SuperGateway and mcp-remote: ContextForge is a heavier self-host governance/observability gateway, not a thin MCP bridge. Vs Smithery: this is a self-host gate you operate, not a hosted MCP marketplace. Open-issue count is high for the maturity pitch; local/JWT setups need real secrets — do not ship example tokens.
- CopilotKitMIT agent-native UI layer — React copilots, AG-UI, MCP★ 38.1kMulti-platformFreemium
Vs Vercel AI SDK (primitives) and Mastra/LangGraph (backend agent runtimes): CopilotKit is the user-facing agent UI/protocol layer, not the orchestration brain. Pro/Team Cloud and VPC are paid when you outgrow Developer free forever. Self-host keeps the MIT path.
- CuaOpen computer-use drivers, sandboxes, MCP, and CUA-S1 decision models★ 30.2kPython · Multi-platformAGPL-3.0
Vs BrowserSkill, Stagehand, and Browser Use: Cua is the broader computer-use driver/sandbox/model stack, not only browser automation or a browser-session attach bridge. Optional `omni` extras pull AGPL Ultralytics; cloud fleets are paid. Audit extras and treat a fleet as infrastructure spend, not as part of the MIT core.
- DBXApache-2.0 agent-facing multi-engine DB client — MCP + CLI + Docker★ 27.2kMulti-platformApache-2.0
★22,325 in about 99 weeks (~225 a week), with 1,284 open issues: judge it on the MCP/CLI substance, not the star count. Vs Neon / hosted DuckDB: those are managed engines; DBX is the agent-facing multi-engine client that sits on connections you already have. MCP is a separate install from the desktop binary; some engines still need the DBX agent/JRE path.
- Design Studio AIAgent-first design workspace with MCP, CLI, and shared human edits★ 222BrowserOSS/MIT
Vs Stitch Skills / generic Figma MCP: this is a full self-hostable studio, not a Google Stitch plugin pack. Generation needs your own provider keys; Node 24+ and Playwright Chromium for local builds.
- DeskcommCRMMIT self-hosted AI sales OS/CRM — MCP-ready★ 4.7kMulti-platformOSS/MIT
Vs Chatwoot (open inbox/helpdesk) and Composio (agent tool auth/connectors): DeskcommCRM is an AI sales OS/CRM with WhatsApp agents, not a general shared inbox alone and not a universal tool marketplace. HostGator affiliate/setup kit is infra convenience, not product lock — you can host elsewhere.
- Desktop Commander MCPMIT MCP for terminal, files, and processes on your desktop host★ 10.1kMulti-platformOSS/MIT
local blast radius: shell + files + processes on your machine. Remote MCP path (mcp.desktopcommander.app) expands the trust boundary further. Vs playwright-mcp / BrowserSkill: those are browser control; this is host OS control. Guardrails exist; it is not a sandbox unless you choose Docker.
- Docker AgentApache-2.0 YAML-defined agents with MCP toolsets — runs as `docker agent`★ 4.6kGo · Multi-platformApache-2.0
Agents are YAML config, not code in an SDK — great when your tools already ship as Docker images or MCP servers, limiting when you need custom control flow in Python/TypeScript. Local models need Docker Model Runner; otherwise bring your own provider API key and pay per token. Vs crewai (Python role/crew framework) and strands-agents (AWS model-driven SDK): Docker Agent is the declarative, container-native lane.
- emceeMIT turn any OpenAPI into an MCP server for Claude and friends★ 332Multi-platformOSS/MIT
Vs mcp-use / Composio / Klavis: emcee is a thin OpenAPI→MCP generator, not a managed OAuth toolkit marketplace or fullstack MCP framework. Garbage OpenAPI → garbage tools; auth/scopes still need careful client config.
- EngramMIT persistent agent memory — MCP, CLI, TUI, SQLite★ 7.4kGo · Multi-platformOSS/MIT
Vs Mem0 / Letta / full agent frameworks: Engram is the memory primitive (store + retrieve + surfaces), not an orchestration framework or coding agent. “local or cloud” branding means optional hosted/sync gravity — day-one stays OSS you run. You still decide what gets written and when.
- EquiblesSelf-hosted financial-data MCP — SEC, 13F, FRED, prices for agents★ 235Multi-platformFreemium
Vs paid market-data SaaS and thin ticker MCPs: this is a self-hosted filings/indicators MCP with an optional Cloud upsell, not a real-time options desk out of the box. AGPL-3.0 copyleft on distributed modifications; self-host means you operate scrapers/storage. Cloud adds transcripts/options/screener beyond the OSS core.
- Exa MCP ServerMIT official MCP server for Exa web search★ 5.1kMulti-platformOSS/MIT
The hosted server works without a key but is rate-limited; higher limits and Exa Agent need an Exa API key or OAuth, and usage beyond that is paid. It searches and reads pages you point it at — for crawling whole sites, use a crawler such as Firecrawl. There are no GitHub releases.
- FastMCPApache-2.0 framework to build MCP servers/clients/apps★ 28.1kPythonApache-2.0
Build MCP apps ≠ use live MCP servers. Distinct from Playwright MCP / Context7 / Serena (capability servers) and from SuperGateway (transport glue). Horizon paid optional for ops at scale; day-one path is OSS FastMCP alone.
- Firecrawl MCP ServerMIT official MCP server for Firecrawl scraping★ 7.6kMulti-platformAGPL-3.0
Without an API key only scrape, search and parse work, and they are rate-limited; crawl, map and agent need a key and paid credits. Vs firecrawl (the scraping engine and API itself, AGPL-3.0): this is just the MIT MCP bridge to it.
- FlintMIT chart language and MCP server that turns short specs into polished charts★ 4.4kNode.jsOSS/MIT
Pre-1.0, so the spec can still move. The Python package is not released yet; the port in the repo is a source-only preview. The README pushes a hosted MCP endpoint first; for private or large data, run the local server instead. It is a layer on top of existing chart libraries, so you still ship Vega-Lite, ECharts or Plotly to render.
- ForemergeDeterministic intent and scope conflict resolution for parallel agents★ 541Rust · Multi-platformApache-2.0
Vs AX, Agent Native, Agent Substrate, Cua, Orca, and Worktrunk: Foremerge is the coordination layer above Git — not a Kubernetes executor, shared action framework, browser/computer-use surface, or worktree manager. ★466 from an overnight Show HN is a signal, not proof of sustained adoption or production correctness; validate conflict decisions on your own task graph.
- Framelink Figma MCPMIT Figma-layout MCP for coding agents — npm figma-developer-mcp★ 16kNode.js · Multi-platformOSS/MIT
★15941 in about 85 weeks (~187 a week): judge it on the Figma→agent MCP loop, not the star count. Vs Figma (design tool) / playwright-mcp / chrome-devtools-mcp: Figma is the collaborative canvas; Playwright/DevTools are browser automation — this catch is Figma file context into the coding agent via MCP. Needs a Figma API key; design-file access and rate limits are the real gate, not the MIT license.
- FridaySelf-hosted cognitive memory MCP for coding agents★ 68Multi-platformOSS/MIT
Vs Mem0 / Letta / Graphiti: Friday is the self-hosted MCP memory appliance for coding agents, not a multi-tenant memory API or a full agent OS. You operate Neo4j/Compose and embedding/model keys; star count is still early — pin and verify before production trust.
- FrontMCPApache-2.0 TypeScript-first MCP server framework (decorators, DI, OAuth)★ 146Multi-platformApache-2.0
Young star count. Requires Node.js 24+. Vs FastMCP (Python) / official TS SDK: those are lighter protocol layers; FrontMCP is a batteries-included server framework, not an MCP host or agent runtime.
- Gemini Notebook MCP CLIMIT CLI+MCP for Gemini Notebook (NotebookLM) — uv/PyPI free path★ 6.3kPython · Multi-platformOSS/MIT
Vs google-workspace-cli (`gws`): that is first-party Drive/Gmail/Calendar/Admin Workspace CLI+skills; this is NotebookLM/Gemini Notebook notebooks via MCP/CLI. Undocumented internal APIs that can change, plus cookie extraction from the browser for auth — personal/experimental risk, not a paid CLI wall. Enterprise Notebook host support is experimental.
- geo-scoreMIT free AIV readiness score + MCP — cite-ability without a paywall★ 320Multi-platformOSS/MIT
Spend: `ask` and `run`/`Watch` call AI engines with YOUR keys — Score is free, citation checks are not. Vs firecrawl / open-seo-class hosted SEO tools: Firecrawl is crawl→markdown; open-seo leans on a hosted path — geo-score’s catch is an open AIV readiness rubric + local MCP with a zero-key Score tier. Rubric is readiness, not a guarantee engines will cite you.
- GitHub MCP ServerMIT official GitHub MCP — issues, PRs, code, workflows for agents★ 33.7kMulti-platformOSS/MIT
Vs Composio (multi-app auth fabric): this is GitHub-only, official, and PAT/OAuth scoped to GitHub. Hosted remote path ties to GitHub/Copilot auth; local mode is yours to run. Permissions are the catch — over-scoped tokens are how agents leak. Not a generic toolkit marketplace.
- GitMCPApache remote MCP — any GitHub repo as live docs for agents★ 8.5kMulti-platformApache-2.0
★8444 in about 79 weeks (~107 a week): judge it on the docs-MCP substance, not the star count. Vs github-mcp / context7 / mcp-remote: github-mcp is the official GitHub issues/PRs/code/workflows MCP; Context7 is library-docs retrieval; mcp-remote is a stdio↔OAuth remote shim — GitMCP’s catch is any-repo docs-as-MCP on gitmcp.io, not GitHub platform tools and not a transport proxy. Generic /docs mode must pick the right repo each turn; prefer pinned {owner}/{repo} URLs for security.
- GooseLocal-first Rust agent with MCP at its coreRustOSS/MIT
General-purpose agent means you configure it for your use case. You bring the model—Goose is the runtime, not the intelligence. Documentation is still maturing.
- Grafana MCP serverApache-2.0 MCP server from Grafana Labs for dashboards, datasources, alerts and incidents★ 3.6kGoApache-2.0
Needs Grafana 9.0 or newer. Several tool groups — panel queries, SQL datasources, InfluxDB, CloudWatch and more — stay off until you turn them on with `--enabled-tools`, so check the list before assuming the agent can see a datasource. Updating a dashboard means sending its full JSON, which eats a lot of agent context on big dashboards. Vs grafana (the dashboards themselves) and opensre (an agent that runs incident investigations end to end): this is the plain bridge that gives any agent read and write access to Grafana.
- GriptapeApache-2.0 Python agents, pipelines, RAG — MCP tools too★ 2.6kMulti-platformApache-2.0
Vs LangChain/LangGraph and CrewAI: Griptape is a structured Python agent/RAG framework, not a coding CLI. Cloud Developer free tier needs a payment method on file and meters after small included quotas — pitch the OSS framework first, not Cloud as free forever.
- growth.engineerMIT agent-readable GTM catalog — tools, functions, workflows via MCP★ 249Multi-platformOSS/MIT
Read-only catalog MCP — it does not execute vendor APIs for you; you still need each tool’s own keys when a workflow says so. Vs Apify MCP / generic awesome-lists: Apify runs Store Actors; this catch is GTM tool+workflow markdown as MCP prompts/tools. Vendor accuracy drifts — treat entries as starting maps, pin commits if you fork.
- Hex-Rays IDA MCPOfficial MIT MCP server for the IDA disassembler★ 1.3kMulti-platformOSS/MIT
The server is free, but it needs IDA 9.4 or newer with idalib, which means a paid Hex-Rays licence (the community server says IDA Free is not supported). It is very young (created Aug 2026, date-stamped releases), and Hex-Rays recommends disabling other IDA MCP servers to avoid confusing the agent. If you don't own IDA, the free route is Ghidra with REA.
- HigressApache-2.0 AI and API gateway on Envoy and Istio, with Wasm plugins, model proxying and MCP hosting★ 9.6kGoApache-2.0
It is a full Envoy/Istio gateway, much heavier to run than a single-binary model proxy. Default images pull from an Alibaba Cloud registry in Hangzhou, so outside China switch to the US or Southeast Asia mirror if pulls time out. Much of the documentation and the plugin catalog live on higress.cn. Vs agentgateway (a lighter, purpose-built gateway for agent and MCP traffic) and litellm (a Python model proxy you can start in minutes): Higress fits when you want AI traffic inside a production API gateway you already run at scale.
- HindsightMIT retain→recall→reflect agent memory (+ MCP)★ 51.3kPython · Multi-platformOSS/MIT
Vs Mem0, Graphiti, Engram, and Supermemory: Hindsight is a retain/recall/reflect memory product with optional hosted Cloud/Enterprise, not a general memory SDK alone, a temporal knowledge graph, a local binary brain, or a speed-first memory API. Treat LongMemEval / SOTA marketing as vendor claims, not catalog proof; Cloud and Enterprise are upsell paths beside the OSS self-host bar.
- HOL GuardApache local antivirus for agents — MCP, skills, shell, packages★ 933Python · Multi-platformApache-2.0
Vs SkillSpector / mcp-scanner / destructive-command-guard / AI-Infra-Guard: SkillSpector scans skills pre-install; MCP Scanner audits MCP servers; dcg is a host deny-hook; AI-Infra-Guard is red-team platform — HOL Guard’s catch is runtime local policy/antivirus across agent actions including MCP calls. Policy false positives can stall agents; optional cloud is not required — keep local-first if that is the point.
- InsForgeApache agent-native backend with MCP self-host★ 13.1kMulti-platformFreemium
Cloud: Free is capped and pauses; Pro (~$20–25/mo) plus separate InsForge Compute and model-gateway usage. Vs Supabase: Supabase is the general Postgres+auth+storage Firebase alt; InsForge’s catch is agent-native MCP/CLI control of the same class of backend, not a better dashboard alone. Self-host still means you run Postgres and the compose stack.
- Invisible Playwright MCPMIT stealth Firefox Playwright MCP — not plain Chromium MCP★ 2.8kPython · BrowserAGPL-3.0
Vs official Playwright MCP: plain Chromium control — this is stealth Firefox. Vs Browser Use / Steel / Cua: those are agent frameworks or browser APIs; this is the MCP-first stealth layer. Anti-detect purpose → site ToS / abuse risk even though the license is clean.
- Jev MCPTen TypeSafe Jev judgment tools over local stdio MCP★ 541Multi-platformFreemium
Vs Jev Review and typesafe-computer-use: this is a multi-tool judgment MCP, not the one-tool diff scorer and not a computer-use loop. Every call needs a TypeSafe API key — the MCP is OSS, the brain is not. Early software; judgments are typed scores, not prose root-cause essays.
- Jev ReviewLocal MCP that scores coding-agent diffs with TypeSafe Jev★ 243Multi-platformFreemium
Scoring depends on a paid/early-access TypeSafe Jev API key — the MCP is OSS, the brain is not (same family as typesafe-computer-use). Vs CodeRabbit/PR bots: this is an in-loop agent checkpoint, not a GitHub review bot. Jev returns scores, not prose root-cause essays — the coding agent still has to diagnose.
- Kilo CodeMIT OSS IDE+CLI agent; active Cline/Roo line + MCP marketplace★ 27.7kNode.js · Multi-platformOSS/MIT
Pitch IDE+platform, not “another OpenCode.” Gateway/account is convenience; BYOK stays. Marketplace and modes are the differentiator vs plain CLI harnesses. Enterprise governance rides Anaconda — evaluate if that middle layer matters for your org.
- KlavisApache MCP integrations + Strata multi-tool server (hosted or self-host)★ 5.8kMulti-platformFreemium
Vs Composio and Smithery: Klavis is another freemium MCP integration/control plane — overlap is real; pick on Strata UX and self-host fit, not logo count. Hosted OAuth convenience is the monetization path; last core push ~2026-06 is cooler than the star count.
- KubescapeApache-2.0 CNCF Kubernetes security — manifest and cluster scans, image CVEs, auto-fix, admission policies, MCP server★ 11.8kMulti-platformApache-2.0
Created and still driven by ARMO, which sells a commercial platform on top, so expect docs and links to point there. Full-framework scans are noisy on a first run; pick one framework or a namespace scope before wiring it into CI. Image scanning wraps Grype, so it overlaps with Trivy if you already run that. The runtime operator is a real in-cluster footprint, not just a CLI.
- LangflowMIT visual agent/workflow builder — every flow as API + MCP tool★ 156kPython · Multi-platformOpen-Core
★155k: a large, mature project, but stars still are not a quality signal. Vs Dify / n8n / mcp-agent: Dify is OSS+cloud LLM studio; n8n is fair-code general automation; mcp-agent is an agent framework — Langflow’s catch is the agent/RAG visual builder with first-class MCP tool export. Self-host ops and dependency weight are real; pin OSS deploy docs before promising zero-ops.
- LibreChatMIT Agents/MCP chat UI — OpenAI-compatible, self-host★ 46kMulti-platformOSS/MIT
Vs Open WebUI / AnythingLLM (local RAG chat UIs): LibreChat leans hard into Agents/MCP/skills orchestration and multi-provider routing, not only RAG chat. You own auth, model keys, vector/DB ops, and upgrade discipline — the OSS UI is free; the models and infra are not.
- LitterBoxMalware and payload detection sandbox with LitterBoxMCP★ 1.6kMulti-platformGPL-3.0
Vs Agent Substrate and coding sandboxes: LitterBox is a malware/payload detection sandbox with an MCP surface, not a general coding workspace or agent runtime isolation layer. The README says “Development use only”; production isolation is an unsolved risk. Windows administration and Linux KVM/Windows-container requirements can be substantial, and GPL-3.0 copyleft still applies to distributed modifications.
- MCP for BlenderMIT Blender MCP — prompt-driven 3D scenes from any agent client★ 31.6kMulti-platformOSS/MIT
Exec: `execute_blender_code` runs arbitrary Python inside Blender — save your work and do not point it at production files you can’t lose. Telemetry: a minimal anonymous usage record (install ID, tool name, success, timing, versions, OS) is sent by default; content capture is opt-in; set `DISABLE_TELEMETRY=true` to stop it all. Keyless AI 3D generation is a paid Premium line (tiers listed from $10). Third-party, not made by Blender. Vs cli-anything (generic app→CLI hub) and text-to-cad (parametric CAD/STEP): this is the scene/asset loop for Blender itself.
- MCP for UnityMIT MCP server that lets AI assistants drive the Unity Editor★ 15.1kMulti-platformOSS/MIT
Needs Python 3.10+ via uv alongside Unity. An agent with editor access can make a mess of a scene or project, so keep the project in version control and review changes. Maintained and sponsored by Aura, whose paid Unity/Unreal assistant is pitched in the README; the MCP server itself is free. Not affiliated with Unity Technologies.
- MCP InspectorMIT official MCP server debugger — web, CLI, and TUI★ 11.1kNode.jsOSS/MIT
Debug surface, not a production MCP gateway or registry (see Smithery) and not transport glue (SuperGateway/mcp-remote). You still author servers elsewhere (FastMCP, etc.). v2 is the active line; pin versions in CI.
- MCP Python SDKMIT official Python SDK for MCP servers and clients★ 24.6kMulti-platformOSS/MIT
It gained about 228 stars a week since September 2024, as the official SDK of a fast-moving protocol. Version 2 changed APIs, so check examples against the migration guide. The spec still moves quickly.
- MCP RegistryCanonical protocol-org community MCP server registry★ 7.4kMulti-platformApache-2.0
Vs Smithery: this is the protocol-org community registry, not a hosted freemium marketplace/CLI product. LICENSE is mid MIT→Apache-2.0 transition (Apache body + MIT-holdout preamble); GitHub SPDX often shows NOASSERTION — redistribution diligence required during the mixed-license era. Still in preview / API-freeze posture; pin expectations before building a business on the API shape.
- MCP Scanner (Cisco)Apache MCP security scanner — YARA, LLM, Cisco AI Defense★ 1.1kPython · Multi-platformApache-2.0
Vs SkillSpector / AI-Infra-Guard / destructive-command-guard: SkillSpector gates agent skills; AI-Infra-Guard is a broader red-team platform; dcg blocks destructive host commands — MCP Scanner’s catch is scanning MCP servers/tools/prompts/resources. Full Cisco AI Defense / VirusTotal paths need keys and network; treat OSS engines as the free bar and cloud engines as optional cost/trust.
- MCP Toolbox for DatabasesApache-2.0 Google MCP server for databases★ 16.7kMulti-platformApache-2.0
You write and maintain your SQL tools yourself in tools.yaml — the server does not invent safe queries for you. The prebuilt tool sets mostly target Google databases (AlloyDB, Cloud SQL, BigQuery, Spanner and friends); other engines get the generic tools. Renamed from genai-toolbox, so older guides use the old name.
- mcp-agentApache-2.0 MCP-as-runtime + durable Temporal workflows (LastMile)★ 8.6kPythonApache-2.0
Vs FastMCP (build MCP servers), Agno/VoltAgent/AG2 (general agent frameworks), and SuperGateway/mcp-remote (transport glue): mcp-agent is MCP-first agent runtime + durable workflows, not a coding CLI and not transport plumbing. LastMile cloud deploy/login is optional — day-one is OSS you run. Temporal ops are yours if you turn durability on.
- mcp-audit-toolMIT static audit of MCP client configs — poisoning, rugs, secrets★ 431Multi-platformOSS/MIT
Package: README PyPI badge may lag — install from the MIT git repo / pipx, not the unrelated PyPI name `mcpaudit` (different project). Vs mcp-scanner / hol-guard / skillspector: MCP Scanner audits MCP servers/tools; HOL Guard is runtime local allow/block; SkillSpector gates skills — mcp-audit-tool’s catch is client-config static audit. ★ still small; pin a commit; findings are leads, not proof.
- mcp-remoteMIT npx stdio↔remote MCP proxy with OAuth support★ 1.6kNode.jsOSS/MIT
Vs SuperGateway (bidirectional stdio↔SSE/WS bridge): mcp-remote is the client-side remote+OAuth drop-in, not a capability server and not a full gateway product. Some clients already speak unauth remote MCP — you only need this for OAuth/legacy stdio hosts. Adds a local Node process in the path.
- mcp-useMIT fullstack TypeScript MCP — servers, apps, clients, agents★ 10.8kNode.js · BrowserOSS/MIT
Vs FastMCP (Python MCP framework), mcp-agent (MCP-as-runtime + Temporal), and Composio (managed tool/auth catalog): mcp-use is fullstack MCP app/server kit, not a multi-SaaS OAuth fabric. Manufact Free is an optional hosted/upsell path — core stays MIT you run yourself.
- mcp2cliMIT runtime MCP/OpenAPI/GraphQL→CLI — zero codegen★ 2.4kPythonOSS/MIT
Vs SuperGateway / mcp-remote (transport bridges) and MCP Inspector (debug UI): mcp2cli is a runtime CLI façade for APIs/MCP, not a gateway product and not an inspector. GraphQL mode needs introspection. You still trust whatever endpoint you point it at.
- MCPJamOSS MCP testing, debugging, and evals platform★ 2.3kMulti-platformApache-2.0
Vs MCP Inspector (official MIT debugger): MCPJam is the broader test/eval platform with hosted gravity, not only the reference inspector. Some `/server/services` and evals paths are separately licensed proprietary portions — treat the free OSS inspector path as the bar, not every hosted feature.
- mcporterMIT MCP as CLI + generate-cli / emit-ts (OpenClaw)★ 5.1kNode.jsOSS/MIT
Vs mcp2cli (runtime MCP/OpenAPI→CLI, zero codegen): mcporter leans generate-cli/emit-ts packaging and TS API shape — pick based on whether you want codegen’d CLIs vs pure runtime discovery. You still trust the MCP servers you wrap. Not an MCP transport gateway (see SuperGateway/mcp-remote).
- MetaMCPMIT self-host MCP aggregator + middleware + inspector (one endpoint)★ 2.7kNode.js · Multi-platformOSS/MIT
Vs MCP Registry: listing/discovery, not an aggregator runtime. Vs ContextForge: protocol gateway + A2A/OTel plane. Vs Klavis: freemium integrations/Strata. Vs Smithery: hosted marketplace. Vs SuperGateway: transport stdio↔SSE only. Soft maintainer capacity thin — last push 2026-06-22; default branch is `ai-dev` (caution); author says core still works / will keep merging PRs — shippable with eyes open.
- Microsoft Agent FrameworkMIT successor to AutoGen + Semantic Kernel — Python and .NET★ 14.2kMulti-platformOSS/MIT
Vs AG2 (community AutoGen fork), LangGraph (graph orchestration), and Google ADK: MAF is Microsoft’s enterprise-shaped multi-agent SDK, not a coding seat. Foundry hosted agents and Azure model meters are paid paths — OSS framework still runs with BYO providers. AutoGen is maintenance-only; start new projects here, not there.
- Microsoft MCPMIT official Microsoft MCP servers, led by Azure★ 3.8kMulti-platformOSS/MIT
Most servers need an Azure subscription or a sign-in to a Microsoft tenant before they do anything useful. Release tags are per package, so check which server a release belongs to.
- Mobile Build MCPMIT Sentry MCP+CLI for iOS/macOS agent builds — npm mobilebuildmcp★ 6.5kNode.js · Multi-platformOSS/MIT
Vs mobile-mcp / chrome-devtools-mcp / playwright-mcp: mobile-mcp is Apache native iOS+Android a11y-tree control (sim/emu/real); DevTools/Playwright are browser — Mobile Build MCP’s catch is build/compile tooling for Apple projects, not UI automation. macOS + Xcode required; Android is out of scope; ★6448 is healthy but still early — pin a release before fleet install.
- Mobile MCPApache-2.0 native iOS+Android a11y-tree MCP (sim/emu/real)★ 9.7kNode.js · Multi-platformApache-2.0
Vs Playwright MCP / Invisible Playwright MCP: those are desktop browser MCP; this is native mobile a11y-tree MCP. Vs ARTEMIS: Google Android NL+MCP automation — Mobile MCP is iOS+Android a11y MCP without the Android-only NL agent framing. Optional Mobile Next Cloud freemium is a separate hosted lane.
- MongoDB MCP ServerApache-2.0 official MCP server for MongoDB★ 1.1kMulti-platformApache-2.0
For Atlas, the README points you to the MongoDB-hosted Atlas MCP server over OAuth instead; the local server is mainly for self-hosted MongoDB. Give it a read-only user unless the agent truly needs to write.
- nanobotUltra-light self-hosted personal AI agent with WebUI, MCP, and memory★ 49.2kMulti-platformOSS/MIT
You operate the host, keys, and chat-app credentials; “ultra-light” still means a long-running service. Young surface with a large issue backlog — pin versions for production. Vs OpenHands / LibreChat (heavier coding or multi-model chat stacks) and OpenBot (governed coworker computers): nanobot is the small personal gateway, not a full browser-cowork platform or a repo-coding agent.
- Obsidian MindMIT Obsidian vault as persistent agent memory★ 5.4kNode.jsOSS/MIT
It is opinionated about work life — standups, 1:1s, brag docs, incident capture — so it fits people who want an agent-run work journal, not just a project memory file. Needs Obsidian 1.12+ (a free but closed-source app) with its CLI enabled, plus Node 22+. QMD downloads about 2 GB of local models on first use. Hooks run on every session and message, so read them before you trust a vault. Vs mem0 or Letta: those are memory layers you build into an app; this is a personal vault for your own coding agent.
- OctopMIT self-hosted multi-user multi-agent platform★ 10kMulti-platformOSS/MIT
Vs LibreChat, OpenClaw, and nanobot: Octop is the team/multi-agent platform surface, not merely a multi-provider chat UI, a personal agent gateway, or a lightweight bot runtime. The self-host bargain moves auth, model keys, storage, upgrades, and operational boundaries onto you.
- OKF Agent MemoryGit-native dual-memory for agents — OKF v0.2 + embedded MCP★ 824Multi-platformOSS/MIT
Vs Engram / Mem0 / Supermemory / Letta: OKF is the git-native OKF+AAG dual-memory recipe with MCP, not a hosted memory SaaS or paging OS. You still author the Domain Codex and decide write discipline; empty knowledge/ stays empty.
- Open Code ReviewApache-2.0 hybrid deterministic+LLM review agent (MCP/plugins)★ 47.6kMulti-platformApache-2.0
Vs Semgrep/Gitleaks (deterministic SAST/secrets): OCR adds an LLM agent layer for context-heavy review, not a drop-in replacement for static rules alone. Vs Claude Code/SWE-agent/OpenHands (general coding agents): OCR is a purpose-built review harness, not a full autonomous coder. BYO LLM cost — you bring the model endpoint and pay the provider; the OSS CLI itself is free.
- OpenAI Agents SDKMIT multi-agent workflows — tools, handoffs, tracing, MCP★ 30.1kMulti-platformOSS/MIT
Vs openai-codex-cli (terminal coding agent), Vercel AI SDK (app AI primitives), and Microsoft Agent Framework: this is the workflow SDK, not the Codex CLI seat. OpenAI API keys and hosted tools meter; sandbox/realtime extras add surface area. Do not confuse with ChatGPT product seats.
- OpenAI Tunnel ClientApache customer daemon for Secure MCP Tunnel to ChatGPT/Codex★ 579Multi-platformApache-2.0
Vs mcp-remote / SuperGateway: this is OpenAI’s hosted-tunnel customer agent for OpenAI products, not a generic stdio↔SSE bridge. Usefulness depends on OpenAI Secure MCP Tunnel availability/account entitlements — the client alone does not replace a self-host MCP gateway.
- OpenChatXMIT local ChatGPT agent runtime — tools, MCP aggregate, skills★ 336Multi-platformOSS/MIT
Product: you need a ChatGPT account that can connect MCP — this is not a free model seat. Safety: runs with your local user permissions; a trusted ChatGPT caller can run commands and hit connected MCP servers. Vs Claude Code / OpenCode / t3-code: those are coding-agent harnesses; OpenChatX’s catch is ChatGPT-Chat-as-local-agent-runtime. Pin a release; treat connector trust like root.
- OpenCodeMIT OSS coding agent: CLI, TUI, desktop; BYOK/local★ 217kMulti-platform · Node.jsOSS/MIT
Two catches worth reading on /log: “The date stamp is a trigger channel” (auto today’s-date × open-weight LoRA as a time-release fuse) and “Compaction ate the denial” (long sessions prune hard vetoes; compaction is untrusted rewrite). Re-read those two notes before you treat OpenCode as set-and-forget.
- OpenHumanGPL-3 local-first agent orchestrator with memory trees and MCP★ 42.2kMulti-platformFreemium
Vs Pi, Claude Code, OpenClaw, and OKF/ai-memory: OpenHuman is the TinyHumans desktop orchestrator + memory product, not a coding-agent CLI harness, Anthropic's CLI, a messaging agent, or a zero-LLM git memory wiki. README marks Early Beta and managed web search / model routing / media tools ride an OpenHuman subscription by default — treat the SaaS path as freemium, not "free forever," even though the repo is GPL-3 and BYOK/local modes exist. GPL-3 copyleft applies to modifications you distribute.
- OpenKnowledgeGPL-3.0 local markdown IDE + LLM wiki — MCP/skills for agent editing★ 4.6kMulti-platformGPL-3.0
License: GPL-3.0 — copyleft applies if you redistribute modifications; fine for personal/internal use, diligence for SaaS forks. Vs Obsidian-class note apps and generic MCP file tools: this catch is a WYSIWYG markdown IDE with harness-side agent editing + MCP, not a second brain plugin alone. Team sync rides git/GitHub — that is ops, not magic.
- OpenStatusAGPL-3.0 status/uptime as code — Terraform/CLI/MCP★ 9.2kMulti-platformFreemium
AGPL-3.0 — network copyleft on modifications you ship as a service. free cloud: one monitor / one page / 10m checks — fine for a side project, not a fleet. Vs Better Stack / Checkly-class SaaS, OpenStatus wins on OSS+IaC; you trade managed depth for license+self-host ops.
- PageIndex MCPVectorless tree-index RAG over long PDFs — freemium MCP for agents★ 402Multi-platformFreemium
Hosted MCP needs a PageIndex API key; self-host the core repo if you refuse the cloud. Vs Supermemory / Mem0 / classic vector RAG: this is document-tree reasoning retrieval, not long-term agent memory. Free page quota is a soft ceiling — verify current Dashboard limits before treating it as unlimited corpus ingest.
- PaperGraph MCPEvidence-first math-paper reading maps for AI agents★ 285Multi-platformOSS/MIT
Vs generic RAG over PDFs: PaperGraph is theorem/evidence workflow for math papers, not a general document Q&A store. Does not verify proofs or equate similarly worded theorems; paywalled refs stay blocked unless you supply local PDFs.
- Playwright MCPOfficial Microsoft MCP server for Playwright browser automation★ 38.4kNode.js · BrowserApache-2.0
It is a control interface, not a complete solution. You still need browser infrastructure (local Chromium or Browserbase). No built-in session management, authentication, or scaling.
- QanatMIT MCP for quant factor processing and backtesting★ 315Multi-platformOSS/MIT
Beta quant niche — not a general agent framework. Your real market data sources may need keys/network even though Qanat itself makes no calls. Vs generic data MCP / notebook stacks: catch is factor pipeline + backtest priced after fees, exposed only through MCP. Pin PyPI; demo data is synthetic.
- Qwen CodeApache-2.0 multi-surface coding agent (Qwen lineage)★ 28.6kMulti-platformApache-2.0
Vs Claude Code: paid product CLI. Vs OpenCode / ZCode / fx: other OSS coding agents — Qwen Code is the Qwen-lineage multi-surface agent with open models+framework, not a tiny Zig binary or Earendil harness fork.
- RadarApache-2.0 Kubernetes web UI — topology, Helm, GitOps, audit, built-in MCP★ 3.9kGo · Multi-platformApache-2.0
Browser UI, not a terminal — if you live in kubectl/k9s only, this is a different seat. The MCP reads and operates through Radar’s cluster context; it does not run agents for you. Scope RBAC tightly: whatever the kubeconfig can do, the UI and MCP can attempt. Paid Radar Cloud adds hosted multi-cluster and SSO while the OSS binary stays free. ★ climbed fast for the project’s age (~3.6k in under a year) — judge it on substance (views, MCP, single binary), not the badge. Young product; pin a release.
- REAMIT MCP server for agent-driven reverse engineering — binaries, Electron apps, .NET, websites★ 326kNode.jsOSS/MIT
Native depth is only as good as the engine behind it: Hopper is commercial (demo mode otherwise), IDA is commercial, Ghidra is free but heavy, and Windows Ghidra support is marked experimental. Needs Node.js 22.19+; APK and firmware paths want JADX/JDK or Binwalk/Unblob on Linux or macOS. The pitch is “see a feature you like, build a version” — many app licenses forbid reverse engineering, and the project itself says you are responsible for authorization and the law. Releases move fast; keep it updated.
- ReverifyMIT claim-verify loop for agents — MCP + deterministic tools★ 1.3kPython · Multi-platformOSS/MIT
★1254 in about 5 weeks (~251 a week): judge it on the verify fidelity, not the star count. Vs unlazy / promptfoo / ragas: unlazy is a completion-discipline skill (and uses “reverify” as a verb — different project); Promptfoo/Ragas are eval suites — Reverify’s catch is runtime claim verification against artifacts via tools/MCP. Coverage is only as good as the checkers you wire; pin PyPI and which harness MCP config you ship.
- ripwireApache-2.0 offline code map and quality checks for coding agents (CLI + MCP)★ 2.5kMulti-platformApache-2.0
The README is very long and leans on a field report written by a model about one engagement, which is not a controlled measurement; the repo has a separate EVALS doc, so read that instead. The one-line install pipes a script from GitHub into bash. Young and pre-1.0, and languages without a grammar fall back to weaker results, which it labels. It overlaps with Serena and Repomix for repo context.
- RowboatApache-2.0 local-first AI coworker — knowledge graph + MCP★ 18kMulti-platformFreemium
Vs OpenClaw / Continue / Claude Code (coding seats) and Mem0/Letta (memory runtimes): Rowboat is a full coworker desktop with graph memory, not a library you embed. Hosted Starter/Pro plans are paid convenience; OSS/local path is the free forever bar. Shell access on your machine means trust boundaries matter.
- ScraplingBSD-3 adaptive scrape/crawl framework + MCP★ 88.5kPythonBSD-3-Clause
Vs Firecrawl-style hosted scrape APIs: Scrapling is a library/framework you run (plus MCP), not a metered scrape SaaS with a managed anti-bot fleet. You own proxies, blockers, and ops; MCP does not erase site ToS or legal risk. Not a general browser-agent product like Browser Use/Steel.
- ScryHosted freemium MCP + SQL over public-record corporaMulti-platformFreemium
Researcher is non-commercial; Team starts from $2k. This is a hosted data product, not an OSS dump you can fork and self-host. Vs Firecrawl / Crawl4AI / Context7: Scry is indexed corpus + SQL, not page fetch, crawl, or documentation packing. Check corpus coverage, freshness, and commercial terms before treating a query as evidence.
- SerenaMIT MCP toolkit: symbol-level retrieve/edit via free LSP★ 30.4kPython · Multi-platformOSS/MIT
Complements agents; it is not a turnkey SWE loop. JetBrains plugin backend is paid optional (free trial) — LSP path stays free. Symbol quality tracks whatever language server you wire.
- SkillboxSelf-hosted versioned skills library with MCP and scoped clients★ 272Multi-platformOSS/MIT
Vs Addy Agent Skills / Stitch Skills: Skillbox is the self-hosted library and MCP distribution plane, not a content pack of engineering or Stitch-specific skills. You run Postgres (or Docker Compose) and guard SKILLBOX_ADMIN_TOKEN; optional Jev tips inherit TypeSafe pricing.
- SkillSpectorApache NVIDIA scanner for agent skills before you install them★ 20.5kMulti-platformApache-2.0
Vs Semgrep/Trivy-class general SAST: this is skill/MCP-skill oriented, not a whole-repo AppSec suite. Scanner signal ≠ proof a skill is safe forever — still review permissions and network egress; NVIDIA catalog signing is a separate trust path from running the OSS scanner alone.
- SLayerMIT embeddable semantic layer for agents — MCP, SQL expressions, dbt/Cube import★ 303Multi-platformOSS/MIT
Vs warehouse/BI tools and raw SQL MCP: SLayer is the metric/expression layer agents query, not a database or a full BI product. You still own warehouse credentials, row-level security design, and whether definitions stay truthful. Young Motley surface — verify connectors for your engine before betting a production agent on it.
- SmitheryFreemium MCP registry, gateway, and hosting marketplace★ 843Multi-platformFreemium
Vs FastMCP (build servers) and mcp-inspector (debug): Smithery is distribution/hosting, not an SDK. Hosted registry is proprietary SaaS — supply-chain risk is real (past hosting incidents in the ecosystem). Prefer BYO HTTPS publish if you distrust hosted builds. Free discovery ≠ free infinite hosting.
- StarNetMIT local-first pixel-art desktop station for real agent crews★ 1.5kMulti-platformOSS/MIT
Vs OpenClaw / Multica: messaging employee or coding-agent issue board — StarNet is a visual station harness novelty. Linux has no public release build yet (Win/macOS only). Early release + installer supply-chain note on piped/download installs; treat heat as discovery until the harness loop proves out.
- Stitch SkillsGoogle Labs agent skills and plugins for the Stitch design MCP★ 8.5kMulti-platformApache-2.0
Vs generic agent-skills packs: this library is Stitch-specific — useful when you are on Google Stitch, not a universal design system. Stitch product access and quotas remain Google-side constraints; the skills repo does not replace that.
- Strands AgentsApache-2.0 model-driven agent SDK from AWS — Python and TypeScript★ 8.9kMulti-platformApache-2.0
Vs Agno / OpenAI Agents SDK / Microsoft Agent Framework: Strands is AWS-born harness with Bedrock gravity, not a coding CLI and not a React copilot UI. Bedrock/AgentCore paths meter when you leave local/BYO. Bring your own model spend either way.
- Stripe AIMIT official Stripe toolkit and MCP server for agents★ 2kMulti-platformOSS/MIT
Tool calls act on your real Stripe account, so start in test mode with a restricted key. There are no GitHub releases — track the npm and PyPI packages instead. Vs stripe-cli (a terminal tool for developers to forward webhooks and inspect events): this is the toolkit an agent uses to call the Stripe API.
- Supabase MCP ServerApache-2.0 official MCP server for Supabase★ 3kMulti-platformApache-2.0
Write access is on by default — add read_only=true unless you really want the agent changing your database, and scope it to a development project. Self-hosted Supabase needs extra setup compared with the hosted endpoint. Vs supabase (the platform itself): this is the agent interface to it.
- SuperGatewayMIT stdio↔SSE/WS bridge for MCP transports★ 2.9kNode.js · Multi-platformOSS/MIT
Plumbing only — not a Playwright/Chrome DevTools MCP capability server. It does not add browser, docs, or symbol tools; it only rewires transport. If your client already speaks the server’s native transport, you do not need it.
- text-to-cadMIT agent CAD plugin — STEP/STL/3MF, DFM checks, drawings via local MCP★ 21.5kPython · Multi-platformOSS/MIT
Runtime: needs uv and a network on first start (downloads the cadgen runtime); pin the cadgen version in your MCP config or updates land silently. Fabrication connectors (SendCutSend checks, Bambu Lab send) are optional skills — the core CAD/MCP path has no account wall, but anything you actually order is your spend. Stars grow fast (~184 a week) but look organic. Fills an empty CAD/fabrication seat — vs awwwards-mcp/open-design, which are visual/design, not solid geometry. Generated geometry still needs a human tolerance pass before you cut metal. For the raw Python CAD library under the hood, see build123d — this gem is the agent plugin/MCP seat on top of it.
- ToolHiveApache-2.0 MCP server runner + gateway — each server in its own container★ 2.3kGo · Multi-platformApache-2.0
Every MCP server runs in its own container, so you need Docker or Podman even on a laptop. Identity and access policies only apply once you connect an OIDC/OAuth provider — out of the box it is isolation, not authorization. Stacklok sells an enterprise tier on top. Vs metamcp (aggregator/proxy that merges servers into one endpoint) and contextforge (gateway/federation): ToolHive’s lane is per-server container isolation plus a registry.
- ToolJetAGPL-3.0 low-code builder for internal tools on your own data★ 41.1kMulti-platformAGPL-3.0
The AI features (app generation, AI query builder, agent builder) are Enterprise, and the README's quick-start Docker image is the enterprise LTS build, so check what you are running. The MCP server is in beta. AGPL-3.0 matters if you modify it and offer it as a service. Appsmith is the closest alternative.
- TradingView MCPLocal CDP bridge: Claude/agents on your TradingView Desktop charts★ 6.9kMulti-platformOSS/MIT
You need a valid paid TradingView subscription plus Desktop with remote debugging enabled — the bridge does not bypass paywalls. Undocumented Electron internals can break on any TradingView update. Vs playwright-mcp / BrowserSkill / Hyperbrowser MCP: this is desktop TradingView CDP, not a general browser or scrape API. Not a trade-execution bot.
- tregMetered tool catalog and team vault for agent integrations★ 5.8kMulti-platformApache-2.0+Terms
Vs Composio and Smithery: treg is the self-hostable tool catalog and team-vault path, not a hosted connector marketplace or MCP registry alone. The Apache-2.0 license has additional terms — no competing hosted, managed, or embedded third-party service without prior written authorization — so it is not a clean “use the code anywhere” Apache grant. The curl|sh installer and credential injection deserve a disposable first run, pinned source, and narrowly scoped secrets.
- tRPC-Agent-GoApache-2.0 Go production agent framework — GraphAgent, MCP, A2A★ 1.9kMulti-platformApache-2.0
Go-native stack with tRPC-ecosystem gravity — not a drop-in for Python LangGraph/Crew shops. Not a hosted product: you build and run the service. Pick it when Go is already the runtime, not as a reason to leave a working Python agent stack.
- TrueForgeMIT open-source agent harness — MCP, skills, subagents, approvals, local SQLite or hosted Postgres★ 6.3kMulti-platformOSS/MIT
It is a harness you integrate, not a finished coding IDE — you still bring models, sandboxes for code execution, and the product UI around it. Requires a current Node (22.14+). Built by TrueFoundry; expect the OSS path to sit next to their commercial platform messaging. Vs langchain / crewai (framework kits) and hermes-agent (batteries-included personal agent): TrueForge is the embeddable runtime when you are shipping your own agent product. Stars have climbed fast for a repo opened in July 2026 (about 500 a week), so don’t read the count as proof of maturity.
- VoiceboxLocal-first OSS voice studio — clone, TTS, dictate, MCP voice for agents★ 58kNode.jsOSS/MIT
Local GPU/CPU and model downloads are on you; macOS/Windows desktop footprint is heavier than a REST TTS call. Large open-issue count — treat cutting-edge engines as experimental. Vs ElevenLabs-class cloud TTS (paid APIs) and Whisper-only STT stacks: Voicebox owns both ends of the loop locally, with agent voice as a first-class surface.
- VoltAgentMIT TypeScript agent framework + optional VoltOps console★ 10.8kNode.jsOSS/MIT
Vs Mastra (TS runtime) and CrewAI/Agno (Python): VoltAgent is TS framework + platform surface, not a terminal coding agent. VoltOps is the paid/hosted ops layer; core stays MIT. Framework lock-in applies — you are building agents, not buying Claude Code.
- Windows-MCPMIT MCP server that lets an agent drive the Windows desktop — apps, UI, input, shell★ 9.5kPythonOSS/MIT
Windows only (7 through 11). It drives your real desktop session with full system access — it is not a sandbox, so run it on a machine or VM you are happy to let an agent control, and keep secrets out of reach. The first install can take a minute or two while dependencies resolve, and the very first start may time out once. Vs cua (sandboxed computer-use VMs and SDK) and agent-desktop (desktop automation agent): Windows-MCP is the plain MCP server on the Windows host itself.