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Permit.io vs Supabase

Permit.io scores higher on the AgentReady, 79/100 against 74/100. They differ on 18 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.

Supabase. Supabase is an open-source Firebase alternative that provides a complete backend platform built on top of Postgres, offering database, authentication, storage, realtime, edge functions, and vector capabilities.

Where Permit.io is ahead

Permit.io passes search discoverable, clear canonical domain and public docs discoverable, and Supabase 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. Supabase misses those.

And on adopt, programmatic credential creation, free trial or free allowance, copyable quickstart, official typescript sdk and official python sdk. Supabase misses those.

Finally, on operate, canonical workflow succeeds, structured, predictable output, machine-readable errors and observable execution. Supabase misses those.

Where Supabase is ahead

Supabase 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. Both sit at 100/100 here. Permit.io misses nothing; Supabase misses search discoverable, clear canonical domain, public docs 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 67. Permit.io misses authentication documented, limits / constraints documented; Supabase 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 63. Permit.io misses self-service signup, no mandatory sales call, fast time to first request; Supabase misses self-service signup, no mandatory sales call, programmatic credential creation, free trial or free allowance, fast time to first request, copyable quickstart, official typescript sdk, official python sdk.

Operate. Supabase leads 67 to 59. Permit.io misses retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Supabase misses canonical workflow succeeds, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified.

Pricing

Permit.io does not publish a machine-readable starting price and has a free tier. Supabase 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 Supabase. Alternatives to each: Permit.io, Supabase.

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