Coding agents

• AiderAI pair programming in your terminal with any model

  Free / OSS · Apache-2.0 · 49.6k GitHub stars

  VerdictThe open-source terminal coding assistant for API-key purists.

  CatchYou are paying per-token at API rates—can exceed subscription costs on heavy use. No managed infrastructure; you are the ops team. Less polished than commercial alternatives.

• ClineVS Code extension for human-in-the-loop AI coding

  Free / OSS · Apache-2.0 · 70.5k GitHub stars

  VerdictMaximum control for developers who approve everything.

  CatchHuman-in-the-loop means constant interruptions. Large tasks require many approvals. The pace is slower than autonomous alternatives.

• OpenAI Codex CLIApache-2.0 OpenAI agent: CLI, IDE, app and cloud

  Free / OSS · Freemium · 130k GitHub stars

  VerdictOpenAI’s answer to terminal agents — open CLI, paid models; budget the plan or the API.

  CatchThe CLI is open source, but the models are not free: you pay through ChatGPT plan quotas or API spend. Codex Web runs on OpenAI’s cloud, not on your machine. The install.sh, brew and npm routes are supply-chain choices, so pin a release binary when that matters. Vs Claude Code or OpenCode: this is OpenAI’s first-party agent, tied to ChatGPT plans or OpenAI API keys.

• Gemini CLIGoogle open-source terminal agent powered by Gemini

  Free / OSS · Apache-2.0 · 107k GitHub stars

  VerdictGoogle terminal agent. OSS CLI remains, but consumer quota was cut 2026-06-18; Antigravity (agy) is the consumer path. Gemini-bound by design.

  CatchGemini-bound lock-in—not model-agnostic like Goose or Crush. Consumer access (free/Pro/Ultra Google login) ended 2026-06-18; enterprise and API keys still work. Don't build on the old Google-login quota path. The OSS CLI remains. Antigravity CLI is the successor, not a 1:1 swap. Preview/nightly channels move fast; pin stable for production workflows. Enterprise path pushes you toward Vertex AI and Google Cloud project setup.

• Chrome DevTools MCPOfficial Chrome DevTools as an MCP server for coding agents

  Free / OSS · Apache-2.0 · 53.8k GitHub stars

  VerdictThe MCP browser for agents that need real DevTools, not just clicks.

  Catchchrome-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.

• CrushCharm-grade TUI coding agent with LSP and mid-session model switch

  Free / OSS · Open-Core · 28.7k GitHub stars

  VerdictThe beautiful, model-flexible TUI coding agent. Charm quality.

  CatchLicensed FSL-1.1-MIT (competing-use restriction; source-available; MIT after two years—not OSI open-source). Pre-1.0 energy—config is migrating from JSON to crushrc Bash. Not a fully autonomous SWE agent like OpenHands; you stay in the loop. Hyper is Charm own model path if you want a subscription. Metrics on by default (DO_NOT_TRACK / CRUSH_DISABLE_METRICS to opt out).

• OllamaMIT local model runner — free forever; Pro cloud $20/mo

  Free / OSS · Freemium · 184k GitHub stars

  VerdictMIT local runner. Free on device; Pro is optional cloud.

  CatchModel runner, not a coding agent. Distinct from vLLM (server serving) and LM Studio (GUI desktop app). You still pick models, prompts, and the agent layer on top.

• ContinueApache-2.0 open-source coding assistant — GitHub is source of truth

  Free / OSS · Apache-2.0 · 36.3k GitHub stars

  VerdictApache-2.0 coding assistant. Free OSS; site is memorial, repo is real.

  CatchCursor acquired Continue; product site is memorial, GitHub is source of truth; OSS remains. Not Cursor-the-editor. Expect docs/site lag vs the repo.

• CodeGraphMIT local AST code knowledge graph for coding agents

  Free / OSS · OSS/MIT · 74.4k GitHub stars

  VerdictMIT local code graph for agents. Free forever; packers are the text cousins.

  CatchIndex cost and residual context occupancy are real. Not a hosted SaaS brain. Distinct from Repomix/Gitingest (pack text) and Aider (edit loop).

• OpenCodeMIT OSS coding agent: CLI, TUI, desktop; BYOK/local

  Free / OSS · OSS/MIT · 217k GitHub stars

  VerdictMIT BYOK agent across CLI/desktop/IDE. The real catches are on /log: date stamp and compaction.

  CatchTwo 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.

• Kilo CodeMIT OSS IDE+CLI agent; active Cline/Roo line + MCP marketplace

  Free / OSS · OSS/MIT · 27.7k GitHub stars

  VerdictMIT IDE+CLI agent with MCP marketplace. Roo’s active heir, not a second OpenCode.

  CatchPitch 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.

• SWE-agentMIT research OSS coding agent; BYOK; mini is successor

  Free / OSS · OSS/MIT · 20.6k GitHub stars

  VerdictMIT research SWE harness. Prefer mini-swe-agent going forward per maintainers.

  CatchVs OpenHands (productized self-host SWE) and Devin (hosted autonomous): SWE-agent is research OSS, not a polished product seat. Maintainers recommend mini-swe-agent as the successor (simpler control flow; active development). For SWE-bench numbers, read upstream.

• TabbyApache-2.0 self-hosted coding assistant; IDE plugins, your GPU

  Free / OSS · Apache-2.0 · 33.9k GitHub stars

  VerdictApache-2.0 self-host coding assistant. Free forever community core; pay only when you need the ee/ team SKUs.

  CatchVs Continue (IDE assistant) and Ollama (model runtime): Tabby is the self-host *assistant server*, not just weights and not a cloud agent seat. `ee/` is separately licensed — Team/Enterprise features are not the Apache core. You own GPU, upgrades, and model quality.

• mirrordMIT local process as if it ran in-cluster; Teams/Operator paid

  Free / OSS · OSS/MIT · 5.4k GitHub stars

  VerdictMIT in-cluster local process. Free forever OSS CLI for one human; Operator/Teams and cloud-agent concurrency are the paid layer.

  CatchVs Tilt (K8s *dev control plane* / live-update) and Earthly (Earthfile *builds*): mirrord is *steal the pod’s context for a local process*, not a multi-service Tiltfile and not an image builder. Teams/Operator is paid (concurrent sessions, traffic filters, queue split, DB branching, RBAC). Cloud AI Agents is Enterprise-gated. Free path is the OSS CLI for individuals.

• Open InterpreterApache-2.0 terminal coding agent; Rust Codex fork for open models

  Free / OSS · AGPL-3.0 · 68.6k GitHub stars

  VerdictApache-2.0 open-model terminal agent. Use the Rust line; classic Python is a fork.

  CatchVs Claude Code / Cursor / OpenCode / Gemini CLI: this is open-model/BYOK terminal, not a hosted Max seat. 2026 rewrite — Rust Codex fork; classic Python AGPL lives at endolith/open-interpreter community fork. The old pip interpreter UX is no longer current upstream.

• Spec KitMIT Spec-Driven Development toolkit — any AI coding agent (GitHub)

  Free / OSS · OSS/MIT · 142k GitHub stars

  VerdictMIT SDD toolkit. Specs before code; not a coding agent itself.

  CatchVs Claude Code / Codex / OpenHands (coding agents): Spec Kit is the SDD workflow primitive — process and toolkit, not a coding agent seat. You still bring the agent, models, and repo discipline. GitHub org project, not a hosted product SLA.

• agentsviewMIT local-first agent session/cost archive — 20+ coding agents

  Free / OSS · OSS/MIT · 6.2k GitHub stars

  VerdictMIT local agent archive. Session/cost on disk; not Langfuse/Braintrust cloud.

  CatchVs Langfuse / Braintrust (cloud LLM observability): agentsview is a local session/cost archive for coding-agent transcripts, not a hosted tracing/eval platform. Optional anonymous telemetry ping; you still need the agent logs on disk. Not a replacement for production OpenTelemetry of your app’s LLM calls.

• EngramMIT persistent agent memory — MCP, CLI, TUI, SQLite

  Free / OSS · OSS/MIT · 7.4k GitHub stars

  VerdictMIT agent memory primitive. MCP/CLI/TUI on SQLite; not a full agent framework.

  CatchVs 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.

• Open Code ReviewApache-2.0 hybrid deterministic+LLM review agent (MCP/plugins)

  Free / OSS · Apache-2.0 · 47.6k GitHub stars

  VerdictApache-2.0 hybrid review agent. Deterministic+LLM vs Semgrep/Gitleaks and vs general coding agents; BYO LLM.

  CatchVs 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.

• OpenResearchMIT coding agents → research agents (Rust)

  Free / OSS · OSS/MIT · 7.3k GitHub stars

  VerdictMIT research-agent workspace. Coding agents → autoresearch; not Spec Kit/DSPy/Promptfoo.

  CatchVs Spec Kit (spec-driven coding workflow), DSPy (prompt/program optimizers), Promptfoo (eval/red-team): OpenResearch is a research-agent harness and experiment ledger around existing coding agents — not a spec kit, not a prompt compiler, not an eval suite. You still pay (or self-host) the coding agent and any remote compute you dispatch.

• Atlas (pacifio)MIT multi-agent change tracking — source control for agents

  Free / OSS · Apache-2.0 · 9.6k GitHub stars

  VerdictMIT agent source-control. pacifio Atlas ≠ Ariga Atlas; track agents, not schemas.

  CatchVs Worktrunk/jj (git worktree / change-oriented VCS plumbing): Atlas is agent session+change tracking with shared memory, not a general VCS replacement. name collision with Ariga Atlas (slug `atlas`, schema-as-code) — this card is `atlas-agents` / pacifio only; never confuse with atlasgo.io.

• ThurboxMIT tmux TUI/CLI for local AI agent orchestration

  Free / OSS · OSS/MIT · 93 GitHub stars

  VerdictMIT local agent TUI. tmux parallel agents vs Atlas/DeskcommCRM; young but concrete.

  CatchVs Atlas (pacifio agent source-control) and DeskcommCRM (self-hosted AI sales CRM): Thurbox is a local tmux/TUI orchestrator for coding-agent CLIs — not session+commit memory like Atlas, not a CRM. Early stars (~67★); needs tmux ≥3.2 (or psmux on Windows) plus at least one agent CLI you already pay for or self-host.

• OpenSpecMIT spec-driven change tooling for coding agents

  Free / OSS · OSS/MIT · 72.3k GitHub stars

  VerdictMIT spec-driven agent tooling. Align before code; host agent required — not a product alone.

  CatchNeeds an AI coding-agent host — OpenSpec is tooling around the agent, not a product that ships code by itself. Vs Spec Kit (heavier phase-gated SDD): OpenSpec is lighter and more iterate-friendly, still not a standalone SaaS. You still pay (or self-host) the coding agent that runs the slash commands.

• Security Audit SkillMIT coding-agent skill for multi-phase security audits

  Free / OSS · OSS/MIT · 31.2k GitHub stars

  VerdictMIT agent security-audit skill. Phased findings vs mcp-security-audit; not a SaaS scanner.

  CatchSkill only — not a standalone SaaS scanner. Distinct from mcp-security-audit (awesome-copilot skill for .mcp.json / MCP config audits) and from OWASP ASI checklist skills: this is Cloudflare’s multi-phase code/security audit skill for a coding-agent host. You still need the agent runtime and any scanners the skill shells out to.

• ECCMIT agent ecosystem / coordination surface

  Free / OSS · OSS/MIT · 283k GitHub stars

  VerdictMIT agent coordination ecosystem. Skills+memory+security on top of host agents — not a host itself.

  CatchStill depends on host agents (Claude Code / Codex / Cursor / etc.) — ECC coordinates and tunes the harness; it is not a replacement coding agent. Vs OpenSpec (spec-driven change tooling) and Thurbox (tmux multi-agent TUI): ECC is the skills/memory/security ecosystem pack, not a spec framework and not a pane orchestrator.

• oh-my-hermesMIT Hermes-agent niche tooling — memory & workflows

  Free / OSS · OSS/MIT · 3.4k GitHub stars

  VerdictMIT Hermes-agent tooling. Niche, not a multi-host skill pack.

  CatchHermes-specific — not a generic Claude Code / Codex skill pack. Young surface; expect Hermes Agent as the host and follow upstream Hermes breaking changes. Vs ECC (multi-host ecosystem) and security-audit-skill (Cloudflare audit skill): oh-my-hermes is niche Hermes tooling, not a cross-harness coordination layer or a security scanner.

• SuperpowersComposable agent skills that force brainstorm → plan → TDD → subagent review

  Free / OSS · OSS/MIT · 302k GitHub stars

  VerdictMIT agent methodology. Install when your agent skips specs and tests; not a replacement for the harness itself.

  CatchYou still need a strong coding harness and model budget; Superpowers is process, not an agent runtime. Optional visual-companion telemetry (opt out via SUPERPOWERS_DISABLE_TELEMETRY / Claude DisableTelemetry). Vs agent-skills (Addy Osmani lifecycle pack) and ECC (multi-host skill ecosystem): Superpowers is the opinionated SDLC methodology that hijacks the session start, not a general skill library or host-agnostic plugin bag.

• Agent Skills (Addy Osmani)Production lifecycle skills — /spec /plan /build /test /review /ship

  Free / OSS · OSS/MIT · 108k GitHub stars

  VerdictMIT production skill pack. Reach for it when you want explicit /spec→/ship gates across many harnesses.

  CatchPer-skill installs can miss shared `references/` checklists — prefer whole-repo or full pack install. Still markdown discipline, not a runtime that forces compliance if the host ignores skills. Vs Superpowers (session-hijacking SDLC methodology) and knowledge-work-plugins (Anthropic official packs): this is the Google-flavored lifecycle library you pick skill-by-skill, not an automatic brainstorm→subagent loop.

• BrowserSkillAttach coding agents to a real logged-in browser without interrupting the session

  Free / OSS · OSS/MIT · 9.2k GitHub stars

  VerdictMIT live-session browser bridge. The no-second-login wedge is real; inherited cookies and permissions are the Catch.

  CatchA live logged-in browser is also a live blast radius: the agent inherits cookies, tabs, permissions, and whatever account is open. Vs Stagehand, Browser Use, and Playwright MCP (separate browser instances or contexts): BrowserSkill trades isolation for continuity. Treat the attached session as the trust boundary, not as a sandbox.

• BendParallel language + proof-gated agent coding

  Free / OSS · Apache-2.0 · 23.8k GitHub stars

  VerdictApache-2.0 parallel language for proof-gated agent coding. Bend is a language surface, not another spec workflow.

  CatchVs Spec Kit and OpenSpec: those are process layers for agreeing on specs and changes, while Bend is a language/proof surface — process is not proof. Adopting a new language means a smaller ecosystem and a real learning/toolchain cost before the proof gates pay back.

More with this tag (92)

• Coder — Durable remote workspaces for humans and coding agents
• Friday — Self-hosted cognitive memory MCP for coding agents
• AX Check — Hosted free agent-experience checklist + recorded coding-agent sessions
• TradingView MCP — Local CDP bridge: Claude/agents on your TradingView Desktop charts
• gawkbot — Source-available always-on bots that build microapps — local Grok Bot alternative
• Dexto — Elastic-2.0 agent harness OS — state, tools, recovery, ships a coding agent
• Orca — Parallel coding-agent ADE with worktrees, mobile control, and design mode
• Caveman — Viral skill and proxy that forces coding agents to spend fewer tokens
• Stitch Skills — Google Labs agent skills and plugins for the Stitch design MCP
• Jev Review — Local MCP that scores coding-agent diffs with TypeSafe Jev
• Codex-X — Codex-specific desktop and CLI workspace for visual configuration and MCP skills
• Pi — MIT agent harness with coding CLI, unified LLM API, and TUI
• book-to-skill — MIT converter from books/docs into cross-agent SKILL.md packs
• Claude Code Templates — MIT npx catalog of Claude Code agents, hooks, settings, and MCPs
• Destructive Command Guard — MIT-with-rider hook that blocks destructive agent shell and git commands
• video-use — Video-editing skill stack for coding agents
• Jev MCP — Ten TypeSafe Jev judgment tools over local stdio MCP
• ZCode — Apache coding workspace — desktop, web, and zcode Agent CLI
• AgentVerse OS — Apache personal cloud OS for you + coding agents on one Ubuntu box
• Impeccable — Apache design language/skills that make AI harnesses better at UI
• CLI-Anything — Apache hub that makes arbitrary software agent-native via CLI surfaces
• ARTEMIS — Apache Android NL automation + MCP for IDE coding agents
• antislop — MIT skill/rules that filter generic AI UI and copy — not a style guide
• HarnessRouter CE — Apache self-hosted unified API over Codex, Claude Code, DSH, and peers
• CC Switch — MIT desktop All-in-One manager for Claude Code, Codex, OpenCode, and peers
• Whiteboard — MIT desktop canvas where humans + coding agents share specs
• SkillSpector — Apache NVIDIA scanner for agent skills before you install them
• CLI Proxy API — MIT local OpenAI/Claude/Gemini-compatible API in front of coding CLIs
• Multica — Source-available board where coding agents pick up human issues
• OpenAI Tunnel Client — Apache customer daemon for Secure MCP Tunnel to ChatGPT/Codex
• Paperclip — MIT org control-plane for agent budgets, Board governance, heartbeats
• Ruflo — MIT meta-harness / execution swarm on coding CLIs (ex Claude Flow)
• fx — Apache-2.0 tiny Zig Unix-like coding agent CLI (Vercel Labs)
• Reef — Apache-2.0 infra for continually self-improving agents
• Qwen Code — Apache-2.0 multi-surface coding agent (Qwen lineage)
• Oh My Pi — MIT Stencil Labs Pi fork with IDE wired in (LSP/DAP)
• Coding Tools MCP — Apache-2.0 model-neutral 18-tool coding runtime over MCP
• OpenRig — Apache-2.0 multi-harness agent team — Claude Code + Codex in one YAML rig
• Matt Pocock Skills — MIT composable SKILL.md pack for real engineering — not vibe coding
• Ponytail — MIT “laziest senior” skill — measured LOC/token/cost cuts, not vibes
• Claude Agent SDK — MIT first-party Anthropic SDK — Claude Code agent loop in your app
• Herdr — Apache-2.0 terminal runtime for multi-agent herds — state, panes, socket API
• Zeron — MIT local control plane for coding agents — optional multi-device sync
• Framelink Figma MCP — MIT Figma-layout MCP for coding agents — npm figma-developer-mcp
• Skills (Vercel Labs) — MIT open agent-skills CLI — npx skills, skills.sh ecosystem
• Claude Code Router — MIT local control plane — route coding agents across models
• oh-my-claudecode — MIT teams multi-agent orchestration for Claude Code — npm oh-my-claude-sisyphus
• Observal — Apache self-host registry for coding-agent extensions + insight
• OpenDesign — Apache collaborative design-agent workspace — Claude Design alt
• DwarfStar 4 — MIT in-process coding agent — project quants only, shared KV cache
• Claude Code Action — MIT GitHub Action — Claude Code on your runner, model calls still bill
• InsForge — Apache agent-native backend with MCP self-host
• OpenKnowledge — GPL-3.0 local markdown IDE + LLM wiki — MCP/skills for agent editing
• awwwards-mcp — MIT design-inspiration MCP — Awwwards search, DNA, screenshots
• OpenChatX — MIT local ChatGPT agent runtime — tools, MCP aggregate, skills
• text-to-cad — MIT agent CAD plugin — STEP/STL/3MF, DFM checks, drawings via local MCP
• gstack — MIT Garry Tan’s Claude Code role stack — plan, review, QA, ship
• MCP for Blender — MIT Blender MCP — prompt-driven 3D scenes from any agent client
• Plannotator — MIT/Apache local browser review for agent plans, docs and diffs — feedback goes straight back to the agent
• Omnigent — Apache-2.0 meta-harness over Claude Code, Codex, Cursor, Pi and custom agents — sessions on any device, policies, sandboxes
• Diagram Design — MIT agent skill for editorial HTML/SVG diagrams — 40+ layout types, brand-matched, no server
• Rapid-MLX — Apache-2.0 local LLM server for Apple Silicon — OpenAI + Anthropic APIs, tool-call parsing tuned for coding agents
• cmux — Native macOS terminal for parallel coding agents
• REA — MIT MCP server for agent-driven reverse engineering — binaries, Electron apps, .NET, websites
• @shadcn/lint — MIT agent-first linter for Tailwind v4 design systems — ESLint or Oxlint
• Codex Security — OpenAI vulnerability finder and patcher
• tuios — MIT terminal window manager that shows which of your coding agents is working, waiting or done
• Handy — MIT offline push-to-talk dictation for any text field — Whisper or Parakeet, nothing leaves your machine
• PPT Master — MIT agent skill that turns documents into natively editable PowerPoint decks — real shapes, charts and slide masters
• Skills Manager — MIT desktop app that keeps one agent-skills library and syncs it into Claude Code, Codex, Cursor and dozens more
• Agent Client Protocol — Apache-2.0 LSP-for-agents: one protocol so any editor can talk to any coding agent
• Codync — Apache-2.0 bots for Claude Code, Codex, Cursor and 40+ ACP agents — message them from phone or desktop
• Kandev — AGPL-3.0 multi-agent kanban with git worktrees — orchestrate, review diffs, open PRs
• Obsidian Mind — MIT Obsidian vault as persistent agent memory
• M3E Canvas — MIT Material 3 sketches turned into vibe-coding prompts
• Beads — MIT issue-tracker memory for coding agents, on Dolt
• Phone Harness — MIT CLI that lets coding agents drive a real phone
• Hex-Rays IDA MCP — Official MIT MCP server for the IDA disassembler
• Scion — Apache-2.0 platform for running coding agents as teams
• Apache Maka — Apache-2.0 local-first agent workspace that logs every step
• ODiff — MIT SIMD image diff for screenshot and visual-regression tests
• Appwrite — BSD-3-Clause backend: auth, database, storage, functions
• LangWatch — Apache-2.0 LLM tracing, agent tests, evals, gateway
• OpenLIT — Apache-2.0 OTel tracing, evals and guardrails for agents
• ripwire — Apache-2.0 offline code map and quality checks for coding agents (CLI + MCP)
• MCP for Unity — MIT MCP server that lets AI assistants drive the Unity Editor
• ToolJet — AGPL-3.0 low-code builder for internal tools on your own data
• OpenClaw 2.0 — Coding and personal agent across 29 messaging channels
• Context7 — MIT MCP client for live library docs; free anon / free key
• Antigravity CLI — Google terminal agent (agy) — Gemini CLI consumer successor
• Claude Code — Terminal-first coding agent with deep repository context
• Amp — Sourcegraph coding agent — free with BYOK, orbs for long-running work