Product / UX / Agent tools & protocols

Composio

Agent tooling platform that provides 1000+ pre-built tool integrations with managed authentication, context management, and a sandboxed execution environment. Handles the hard parts of connecting agents to external services (OAuth flows, API pagination, rate limiting) so agent builders can focus on logic. 28K GitHub stars, YC-backed. The largest catalog of ready-to-use agent tools with built-in auth.

Agent tool-integration SDK + managed platform: 1000+ toolkits, tool search, auth, sandboxed workbench; Rube MCP server connects 500+ apps. Python SDK v0.13.1 (May 14, 2026); @composio/claude-agent-sdk 0.9.2 (May 13, 2026). Verified live on GitHub/PyPI June 2026.

Openness

4 high confidence

4.0

license: MIT(OSI, SDK/core public on GitHub)
source: public(Python + TypeScript SDKs)
managed-tier: Composio hosted platform + Rube MCP server (auth, hosted tool execution) is the commercial layer
core-gated: gated

SDK/core is MIT and public; the hosted multi-app integration/auth platform is the proprietary tier, classic open-core.

https://github.com/ComposioHQ/composio recorded 2026-06-04
MIT LICENSE, public SDK source, 1000+ toolkits, ~28.6k stars

Adoption

4 medium confidence

4.0

CORRECTION (adversarial verify 2026-06-04): prior record claimed no primary download figure and capped at stars_fallback level 3. pypistats now shows the composio PyPI package at ~3.17M downloads in the last month (a measured usage_volume signal in the 1M-10M band), so upgraded to level 4 / usage_volume and the stars_fallback cap is removed. Corroborated by ~28.6k GitHub stars and framework integrations (OpenAI, Anthropic, LangChain, LlamaIndex) plus the hosted platform.

https://pypistats.org/packages/composio recorded 2026-06-04
~3,166,911 (3.17M) monthly PyPI downloads
https://github.com/ComposioHQ/composio recorded 2026-06-04
~28.6k stars, integrations across major agent frameworks
https://pypi.org/project/composio/ recorded 2026-06-04
active package, latest v0.13.1 (May 2026); confirms maintenance

Capability

4 medium confidence

4.0

Broad tool-coverage and auth/sandbox feature set make it one of the most capable agent tool-integration layers; strong on the {coverage, structured output, breadth} matrix, just short of a frontier-defining 5.

https://github.com/ComposioHQ/composio recorded 2026-06-04
1000+ toolkits, tool search, auth, sandboxed workbench, Rube MCP 500+ apps

Unchanged since 2026-07-30 (last edited, not re-checked)