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Composio vs Smithery

Composio scores higher on the AgentReady, 97/100 against 56/100. They differ on 17 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Composio. Composio provides 1,000+ integrations with just-in-time tool calls, secure delegated auth, sandboxed environments, and parallel execution for AI agents.

Smithery. Smithery connects AI agents to a growing catalog of tools and integrations, handling auth, credentials, and sessions.

Where Composio is ahead

Composio passes clear canonical domain and llms-full.txt / full agent docs, and Smithery does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: structured api reference, openapi / spec quality, pricing understandable, request examples provided, response examples provided and errors and status codes documented. Smithery misses those.

And on adopt, self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request and cli available. Smithery misses those.

Finally, on operate, structured, predictable output, machine-readable errors and rate-limit behavior predictable. Smithery misses those.

What neither does

Both fail retry behavior documented, idempotency support. If your agent needs any of those, you will be building it yourself either way.

Score, pillar by pillar

The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.

Discover. Composio leads 100 to 87. Composio misses nothing; Smithery misses clear canonical domain, llms-full.txt / full agent docs.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Composio leads 100 to 31. Composio misses nothing; Smithery misses structured api reference, openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented.

Adopt. Composio leads 100 to 50. Composio misses nothing; Smithery misses self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, cli available.

Operate. Composio leads 89 to 56. Composio misses retry behavior documented, idempotency support; Smithery misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable.

Pricing

Composio does not publish a machine-readable starting price and has a free tier. Smithery does not publish one.

Signal by signal

Which to pick

Composio clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Composio and Smithery. Alternatives to each: Composio, Smithery.

An agent can fetch this as data: POST /v1/compare {"slugs": ["composio", "smithery"]}