Better Auth alternatives

The highest-scoring alternative to Better Auth is Permit.io at 79/100 on the AgentReady, against 57/100 for Better Auth.

All scored in Authentication & Identity.

What Permit.io does that Better Auth does not

Permit.io passes clear canonical domain, llms-full.txt / full agent docs, 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, observable execution, and Better Auth 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

Better Auth fails clear canonical domain, llms-full.txt / full agent docs, openapi / spec quality, request examples provided, response examples provided, errors and status codes 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, 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.

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 Better Auth") over the MCP server, or GET /v1/categories/auth.