composio vs skybridge
Two of the top projects in Agent and MCP starters, side by side: who leads on each score part and who each one suits, then setup, license, activity and what each review found.
composio
TypeScript and Python SDKs that give agents authenticated tools across 1000+ apps
skybridge
React framework for building MCP Apps with interactive UI views
Verdict
composio ranks higher, 92 to 78. Of the 4 score parts we measure for both, composio leads on 2, skybridge on 1 and 1 is even.
- Adoptioncomposio leads by 52 points, 93 to 41: a wide gap.
- FreshnessEven at 100.
- Maintenanceskybridge leads by 7 points, 94 to 87.
- Agent-readycomposio leads by 15 points, 85 to 70: a wide gap.
Pick composio if you are
Developers wiring agents to third-party apps with managed per-user auth
- Adapters for about 16 frameworks, including OpenAI Agents, Claude Agent SDK, LangChain and Mastra
- Per-user sessions handle authentication, so the agent does not manage OAuth flows
Pick skybridge if you are
TypeScript developers building interactive MCP Apps for Claude and ChatGPT
- Type inference from MCP tool definitions through to React views
- Dev server with local emulator, hot module reload and tunnel to Claude and ChatGPT
| What we compare | composio | skybridge |
|---|---|---|
| Score parts, out of 100 | ||
| Adoption | 93, widely used | 41, known |
| Freshness | 100, active | 100, active |
| Maintenance | 87, healthy | 94, healthy |
| Agent-ready | 85, ready | 70, partly |
| Facts from GitHub and the README | ||
| Stars | 31k | 2.2k |
| License | MIT (permissive) | MIT (permissive) |
| Last commit | Nov 2026 | Nov 2026 |
| Last release | Nov 2026 | Nov 2026 |
| Language | TypeScript | TypeScript |
| Docker | No | No |
| GPU | Not needed | Not needed |
| arm64 or Apple Silicon | Mentioned | Not stated |
composio
Composio is an SDK monorepo (TypeScript, Python, and a CLI) that creates per-user sessions exposing pre-authenticated toolkits to an agent. Sessions default to meta tools that discover, authenticate and execute app tools at runtime, and can also be served through a hosted MCP endpoint. Provider adapters convert the tools to the formats of OpenAI, Anthropic, LangChain, Vercel AI SDK, Google ADK, CrewAI and others.
Who it is for: Developers wiring agents to third-party apps with managed per-user auth
Strengths
- Adapters for about 16 frameworks, including OpenAI Agents, Claude Agent SDK, LangChain and Mastra
- Per-user sessions handle authentication, so the agent does not manage OAuth flows
- Meta tools load tools at runtime instead of putting hundreds of definitions in context
- Each session can also be exposed as a hosted MCP URL for Claude, Cursor or other clients
Weaknesses
- Requires a COMPOSIO_API_KEY from the hosted dashboard; the README documents no self-hosted option
- The SDK is open source, but toolkits and auth run through Composio's service
- Provider coverage is uneven: Vercel and Mastra are TypeScript only, CrewAI and AutoGen Python only
- Pi provider is experimental and ships from a separate package
- TypeScript, OpenAI, Anthropic, Google GenAI, LangChain
- Needs Composio API key (hosted service), Node 22+ for TypeScript SDK, Python 3.10+ for Python SDK
skybridge
Skybridge is a TypeScript framework for building MCP servers that render interactive React views inside Claude, ChatGPT, VS Code and other UI-enabled MCP clients. It provides a dev server with a local emulator, hot module reload and a tunnel, plus React hooks and end-to-end type inference from tool definitions to views. A CLI, an agent skill and example apps are included.
Who it is for: TypeScript developers building interactive MCP Apps for Claude and ChatGPT
Strengths
- Type inference from MCP tool definitions through to React views
- Dev server with local emulator, hot module reload and tunnel to Claude and ChatGPT
- Abstracts differences between MCP clients so one app targets several hosts
- Many runnable examples with live demos, including six OAuth provider integrations
Weaknesses
- Tied to React and TypeScript; no other frontend stack is mentioned
- Permanent tunnel, analytics and directory submission help are tied to the Alpic hosted service
- Only useful with MCP clients that support UI views
- No Docker image or compose file; self-hosting means a Node.js platform
- TypeScript
- Needs Node.js, npm
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