Supabase alternatives

The highest-scoring alternative to Supabase is Permit.io at 79/100 on the AgentReady, against 74/100 for Supabase.

All scored in Authentication & Identity.

What Permit.io does that Supabase does not

Permit.io passes search discoverable, clear canonical domain, public docs discoverable, openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, programmatic credential creation, free trial or free allowance, copyable quickstart, official typescript sdk, official python sdk, canonical workflow succeeds, structured, predictable output, machine-readable errors, observable execution, and Supabase 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

Supabase fails search discoverable, clear canonical domain, public docs discoverable, openapi / spec quality, pricing understandable, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented, 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, canonical workflow succeeds, structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified. Each one is a place an unattended run stops, which is usually what sends someone looking in the first place.

Where Supabase loses the points

Supabase is weakest on adopt at 63/100. A sales call in the signup path stops an unattended run dead. If that is the part your agent depends on, take the ranking above seriously; if it is not, Supabase may still be the right pick.

What an agent runs into with Supabase

These are the findings from the last audit on 2026-08-20. Each one is a place unattended software stops, which is the practical reason to look at the list above.

• Make signup self-serve; an agent cannot sit through a sales call.
• Make docs reachable without auth or navigation gymnastics.
• Flesh out the OpenAPI: paths, schemas, and descriptions.
• Document error responses as an enum in your OpenAPI.
• Let agents create API keys programmatically.
• Ship an official TypeScript/JavaScript SDK on npm.
• Ship an official Python SDK on PyPI.
• Return X-RateLimit / Retry-After headers so agents pace themselves.

What this category actually supports

Across the 26 products scored in Authentication & Identity, authenticate users is offered by 69%, social / oauth login is offered by 54%, enterprise sso is offered by 50%, manage orgs & roles is offered by 38%. 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 Supabase") over the MCP server, or GET /v1/categories/auth.