Database · for FastAPI

Database for FastAPI

Among 12 makers' products we track that are built with FastAPI, here's what they chose for database — each counted from a live-product source.

Where the data lives: a whole backend platform (database, auth and storage in one project), a managed database you reach from your own code, or the raw engine on your own server. Postgres is the default unless you have a reason to pick otherwise; analytics and graph databases sit next to it for workloads it handles poorly, not instead of it. How your code talks to it is its own decision (Database Access & ORMs).

What makers on FastAPI chose

Counts are live products with a source, not market share; a product using two options counts in both.

PostgreSQLRun it yourself

In Replit

Best forThe engine behind most of the hosted options above, run on your own server or container for full control and a flat cost.

Trade-offBackups, upgrades, failover and connection pooling are yours to set up and watch.

4 of the 12 FastAPI products here · free tier · open source

SupabaseBackend platform

llms.txt MCP CLIIn Bolt, Lovable, v0

Best forPostgres plus auth, storage and realtime in one project.

Trade-offAuth, storage and database in one vendor makes leaving harder later, and free projects pause after a week without activity.

3 of the 12 FastAPI products here · free tier · open source

MongoDBManaged database

llms.txt

Best forDocument-shaped data and teams already fluent in Mongo.

Trade-offNo joins or schema by default, so relational data and migrations take discipline you'd get for free in Postgres.

3 of the 12 FastAPI products here · free tier

FirebaseBackend platform

llms.txtIn Lovable

Best forMobile apps that need offline sync and client-side SDKs.

Trade-offA document store without SQL joins; hard to migrate off.

1 of the 12 FastAPI products here · free tier

NeonManaged database

llms.txt MCP CLIIn v0

Best forServerless Postgres that scales to zero, with a branch per preview deploy.

Trade-offCold starts after idle periods add latency to the first query, and heavy always-on workloads can cost more than a fixed server.

1 of the 12 FastAPI products here · free tier · open source

MySQLRun it yourself

Best forPHP, Laravel, WordPress and Rails stacks, and teams that already know MySQL well.

Trade-offFewer extensions and advanced types than Postgres, so most new tooling (vectors, JSON-heavy work) targets Postgres first.

1 of the 12 FastAPI products here · free tier · open source

TinybirdAnalytics (OLAP)

llms.txt

Best forManaged ClickHouse that turns SQL over event streams into fast API endpoints for dashboards and usage analytics in your product.

Trade-offClosed, cloud-only service; its own project format and CLI to learn on top of ClickHouse SQL.

1 of the 12 FastAPI products here · free tier

Also real options for database, not seen among these FastAPI products yet: Convex, PlanetScale, Turso.