Find the right API
Use search when the broad directory stops being enough. Filter by category, auth, CORS, signup friction, and result freshness until the shortlist becomes obvious.
Start with category and auth when you know the integration shape. Use free, signup, and CORS flags when you are trying to remove setup friction.
Sort by verification or response time when the final call is about reliability, not just category fit.
4 results after 1 active filters. Remove any one below without losing the rest of the cut.
Neon API
Neon is serverless Postgres — separated storage and compute, scale-to-zero (no charge when idle), DB branching, 100% Postgres compatible.
Nhost API
Nhost is open-source Firebase alternative — managed BaaS with Hasura GraphQL + Postgres + auth + storage + serverless functions.
Supabase API
Supabase is open-source Firebase alternative — Postgres SQL database + auth + storage + realtime + edge functions + vector embeddings.
Xata API
Xata is serverless Postgres with spreadsheet-style UI, full-text search, vector, and AI assistant — treats DB as a SaaS product.