Auth0 vs Supabase
Auth0 versus Supabase, compared with Twin Scores rather than a single winner banner.
Twin Scores side by side
Auth0
Human76
Agent90
Auth0 (Okta Customer Identity) is hosted authentication: Universal Login, social connections, RBAC, and Actions. The dashboard is dense. The OIDC/OAuth machine surface is the actual product, which agents and apps already speak. Humans feel the login box; agents feel client.
Supabase
Human86
Agent93
Supabase is the open-source Firebase alternative: Postgres, Auth, Storage, Realtime, and Edge Functions with a studio GUI. Humans click tables. Agents use the REST and JS clients, RLS, and the CLI to migrate. This directory itself targets a Supabase project. We score the.
Capability snapshot
| Surface | Auth0 | Supabase |
|---|---|---|
| API | excellent | excellent |
| MCP | none | basic |
| CLI | basic | excellent |
Unique intro lives on this URL only. See also alternatives to Auth0.