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Permit.io vs Stytch

Permit.io scores higher on the AgentReady, 79/100 against 51/100. They differ on 13 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Permit.io. Permissions for the AI era.

Stytch. The identity platform for humans & AI agents.

Where Permit.io is ahead

Permit.io passes mcp discoverable, and Stytch does not. That is discover, whether an agent can find the product at all without being told it exists.

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

And on adopt, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, cli available and mcp integration available. Stytch misses those.

Finally, on operate, machine-readable errors. Stytch misses it.

Where Stytch is ahead

Stytch passes authentication documented, and Permit.io does not. That is understand, whether an agent can read the docs and work out how the API behaves before calling it.

What neither does

Both fail limits / constraints documented, self-service signup, no mandatory sales call, fast time to first request, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified. 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. Permit.io leads 100 to 87. Permit.io misses nothing; Stytch misses mcp discoverable.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Permit.io leads 85 to 38. Permit.io misses authentication documented, limits / constraints documented; Stytch misses openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Permit.io leads 70 to 29. Permit.io misses self-service signup, no mandatory sales call, fast time to first request; Stytch misses self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, free trial or free allowance, fast time to first request, cli available, mcp integration available.

Operate. Permit.io leads 59 to 50. Permit.io misses retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Stytch misses machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Permit.io does not publish a machine-readable starting price and has a free tier. Stytch does not publish one.

Signal by signal

Which to pick

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

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