Mcp alternatives

The highest-scoring alternative to Mcp is Permit.io at 79/100 on the AgentReady, against 58/100 for Mcp.

All scored in Authentication & Identity.

What Permit.io does that Mcp does not

Permit.io passes public docs discoverable, structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, agent-compatible signup flow, programmatic credential creation, copyable quickstart, structured, predictable output, machine-readable errors, and Mcp fails them. That is the whole of the gap between the two scores, so if none of those matter to your agent the ranking above overstates the difference.

Why people look for an alternative

Mcp fails public docs discoverable, structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, copyable quickstart, structured, predictable output, machine-readable errors, idempotency support, rate-limit behavior predictable. Each one is a place an unattended run stops, which is usually what sends someone looking in the first place.

What this category actually supports

Across the 25 products scored in Authentication & Identity, authenticate users is offered by 68%, social / oauth login is offered by 52%, enterprise sso is offered by 52%, manage orgs & roles is offered by 40%. Anything under half is a gap you should expect to fill yourself whichever one you pick.

An agent can get this list directly: resolve("alternative to Mcp") over the MCP server, or GET /v1/categories/auth.