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Arcade vs Permit.io

Permit.io scores higher on the AgentReady, 79/100 against 61/100. They differ on 15 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Arcade. The runtime between your agents and every system they need to reach.

Permit.io. Permissions for the AI era.

Where Arcade is ahead

Arcade 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.

It also holds adopt: self-service signup and fast time to first request. Permit.io misses those.

And on operate, agent compatibility verified. Permit.io misses it.

Where Permit.io is ahead

Permit.io passes clear product positioning, and Arcade 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. Arcade misses those.

And on adopt, programmatic credential creation and free trial or free allowance. Arcade misses those.

Finally, on operate, structured, predictable output and machine-readable errors. Arcade misses those.

What neither does

Both fail limits / constraints documented, no mandatory sales call, retry behavior documented, idempotency support, rate-limit behavior predictable. 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. Arcade misses clear product positioning; Permit.io misses nothing.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Permit.io leads 85 to 23. Arcade misses structured api reference, openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Permit.io misses authentication documented, limits / constraints documented.

Adopt. Arcade leads 76 to 70. Arcade misses no mandatory sales call, programmatic credential creation, free trial or free allowance; Permit.io misses self-service signup, no mandatory sales call, fast time to first request.

Operate. Permit.io leads 59 to 56. Arcade misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable; Permit.io misses retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

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

Arcade plansPermit.io plans
-Community Free Forever
-Enterprise Custom

Signal by signal

SignalArcadePermit.io
AgentReady6179
Discovery87100
Understanding2385
Adoption7670
Operability5659
Public APIYesYes
MCP serverYesYes
OpenAPI specUnknownYes
CLIYesYes
llms.txtYesYes
Self-serve signupYesNo
Free tierUnknownYes

Which to pick

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

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

For AI agents

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