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Alternatives · Agent Frameworks & SDKs

AgentScope alternatives (2026)

AgentScope: A serious framework to evaluate next to LangGraph and similar tools.

Its Catch: It gained about 232 stars a week since January 2024, backed by a large team and steady releases.

Below: 8 free or free-tier tools from the same category (agent frameworks and SDKs), free and open source first, then the closest match by shared tags. Each keeps its own Catch.

  1. 1.OpenAI Agents SDKMIT multi-agent workflows — tools, handoffs, tracing, MCP

    Free / OSS · OSS/MIT · 30.1k GitHub stars

    VerdictMIT OpenAI agent workflow SDK. Build multi-agent loops; API spend is separate.

    CatchVs 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.

  2. 2.tRPC-Agent-GoApache-2.0 Go production agent framework — GraphAgent, MCP, A2A

    Free / OSS · Apache-2.0 · 1.9k GitHub stars

    VerdictApache-2.0 Go agent framework when GraphAgent + MCP/A2A belong inside Go services — skip if your team is Python-first and does not want another runtime.

    CatchGo-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.

  3. 3.Microsoft Agent FrameworkMIT successor to AutoGen + Semantic Kernel — Python and .NET

    Free / OSS · OSS/MIT · 14.2k GitHub stars

    VerdictMIT Microsoft agent SDK. Prefer over AutoGen for new builds; watch Azure meters in prod.

    CatchVs 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.

  4. 4.Strands AgentsApache-2.0 model-driven agent SDK from AWS — Python and TypeScript

    Free / OSS · Apache-2.0 · 8.9k GitHub stars

    VerdictApache-2.0 AWS agent harness. Model-driven + MCP; Bedrock optional, not mandatory.

    CatchVs 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.

  5. 5.GriptapeApache-2.0 Python agents, pipelines, RAG — MCP tools too

    Free / OSS · Apache-2.0 · 2.6k GitHub stars

    VerdictApache-2.0 Python agent/RAG framework. MCP as tools; Cloud free tier is metered, not forever.

    CatchVs 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.

  6. 6.aclifAgent CLI framework — one grammar across SaaS providers

    Free / OSS · OSS/MIT · 20 GitHub stars

    VerdictMIT agent CLI framework. Use when agents should run one self-describing CLI instead of a pile of one-off tools.

    CatchVs MCP servers (protocol tools) and mcp2cli: aclif is an agent-native CLI framework, not an MCP server and not a thin wrapper generator alone. Early stars; you still implement/provider-wire the SaaS surfaces you need, and enterprise IdP reality sits outside the framework.

  7. 7.UniverEmbeddable Office runtime where agents and humans share documents

    Free / OSS · Apache-2.0 · 22.7k GitHub stars

    VerdictApache-2.0 Office runtime for agent-plus-human workflows. Strong for embeddable Sheets-first experiences; budget for Pro if collaboration and richer Office features are core.

    CatchVs Design Studio AI and json-render: Univer is an embeddable Office runtime, not a generative design canvas or a UI-description renderer. The Pro tier is commercial for collaboration, import/export, charts, and related capabilities; the OSS packages do not mean every production feature is free. Docs and Slides are also less mature than Sheets, so validate the exact surface before committing.

  8. 8.Dapr AgentsApache-2.0 CNCF Dapr durable agent workflows on Kubernetes

    Free / OSS · Apache-2.0 · 764 GitHub stars

    VerdictApache-2.0 durable agents when you already run Dapr/K8s — skip for single-dev laptop harnesses that do not want sidecar ops.

    CatchYou inherit the Dapr + Kubernetes ops surface — overkill for a laptop coding agent. Vs Temporal + mcp-agent durability: different durability stacks; Dapr Agents wins when Dapr is already platform policy, not when you want the lightest local loop.

FAQ

What are the best free alternatives to AgentScope?
OpenAI Agents SDK, tRPC-Agent-Go, Microsoft Agent Framework, Strands Agents, Griptape. All are reviewed on Stack Gems in the same category (agent frameworks and SDKs); 8 free or open source.
What is the catch with AgentScope?
It gained about 232 stars a week since January 2024, backed by a large team and steady releases.
Is there an open-source alternative to AgentScope?
Yes: OpenAI Agents SDK (OSS/MIT), tRPC-Agent-Go (Apache-2.0), Microsoft Agent Framework (OSS/MIT), Strands Agents (Apache-2.0).

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