Composio

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 features withheld

yes — the execution engine is in no public repo. The MIT tree is SDKs and provider adapters only and toolkit execution the app catalog and managed OAuth all run on the hosted platform at backend.composio.dev behind a COMPOSIO_API_KEY with no self-host option documented

Composio's SDKs and provider adapters are MIT-licensed and public, but the toolkit-execution engine, the app catalog and OAuth management run only on Composio's own servers, with no self-hosting option documented. The published tree contains no server or auth service, and every path to running a tool requires a hosted API key, which is what makes this open core rather than open source.

• https://api.github.com/repos/ComposioHQ/composio recorded 2026-08-12

  Repo metadata: license spdx_id MIT, default branch next, 29,636 stars, not archived. The published tree is the SDK monorepo - python/ and ts/ - which is what `source: public` refers to; it is not the tool-execution platform, which is not published anywhere.

• https://api.github.com/repos/ComposioHQ/composio/contents/ts/packages recorded 2026-08-12

  The published TypeScript tree is client-side only: cli, cli-keyring, cli-local-tools, core, experimental, json-schema-to-effect-schema, json-schema-to-zod, providers, slim, ts-builders. The python/ tree is the same shape - composio plus providers. There is no server, no toolkit runtime and no auth service anywhere in the repository, which is the functionality the paid platform holds.

• https://docs.composio.dev/docs/welcome recorded 2026-09-29

  The docs welcome page describes the product as "Give your agents tools, managed authentication, and secure execution." Searched the body for self-host, self host, on-prem and on prem: none.

• https://github.com/ComposioHQ/composio recorded 2026-06-04

  MIT LICENSE, public SDK source, 1000+ toolkits, ~28.6k stars

• https://raw.githubusercontent.com/ComposioHQ/composio/next/LICENSE recorded 2026-09-29

  The repository LICENSE is the plain MIT License text headed "MIT License" and "Copyright (c) 2025 Sampark Inc.".

• https://raw.githubusercontent.com/ComposioHQ/composio/next/README.md recorded 2026-09-29

  The README says "This is the Composio SDK monorepo. It contains:" and lists the TypeScript SDK, the Python SDK, a CLI and provider adapters; it says "Grab a `COMPOSIO_API_KEY` from the [dashboard](https://dashboard.composio.dev/settings) first." and ends "MIT. See [LICENSE](LICENSE)."

Adoption is measured by monthly PyPI downloads of composio-core, the package's one declared artifact.

• https://pypistats.org/api/packages/composio-core/recent recorded 2026-08-13

  194,657 downloads in the trailing 30 days for composio-core

Composio supports many different systems, manages every credential itself rather than leaving that to the caller, and hosts execution end to end. What earns the top score is not the size of its catalogue but that the platform, not the caller, carries the credentials.

• https://docs.composio.dev/getting-started/welcome recorded 2026-09-17

  The platform overview: "tool search over 1,500+ apps, surfaced just in time with the right scope" and "Auth and context, per end-user. OAuth, API keys, and tokens scoped to each user and refreshed automatically", with per-user connections illustrated across Slack, Gmail and Linear.