
context-async-sqlalchemy
The best way to use sqlalchemy in an async python application
FreeBoilerplateHelpersOpen Source268 impressions#268 of its week
A library that simplifies async SQLAlchemy usage by managing engine, sessions, and transactions via contextvars.
- for
- Python developers building asynchronous applications with SQLAlchemy
- pricing
- open source
- license
- MIT
Key features
- Automatic lifecycle management — Handles engine, session, and transaction creation, commit, rollback, and cleanup automatically.
- Framework-agnostic — Works with any async web framework without requiring specific integrations.
- Lazy initialization — Initializes the database engine only when a session is first requested.
- Concurrent query support — Provides tools to run multiple SQL queries concurrently within the same context.
- Runtime host switching — Allows changing database hosts at runtime without restarting the application.
- Testing convenience — Simplifies test setup by managing sessions automatically.
Use cases
- Reuse the same DB session across async coroutines without manual passing
- Write tests that need automatic transaction rollback
- Switch between multiple databases in a single app
- Run parallel queries in background tasks without extra boilerplate
context-async-sqlalchemy vs alternatives
context-async-sqlalchemy | Prisma | Drizzle ORM | Supabase | Firebase | |
|---|---|---|---|---|---|
| Best for | Async SQLAlchemy session management | TypeScript ORM with built-in client | Lightweight TypeScript ORM | Hosted Postgres backend | NoSQL backend platform |
| Pricing | Open source | Free | Free | Subscription | Subscription |
| DevHunt upvotes | 0 | 0 | 0 | 0 | 0 |
| Launched | Jan 2026 | — | — | — | — |
- context-async-sqlalchemy vs Prisma: Prisma is a TypeScript ORM with its own query engine, while this tool is a Python helper for async SQLAlchemy.
- context-async-sqlalchemy vs Drizzle ORM: Drizzle ORM is a lightweight TypeScript ORM; this library focuses on Python async SQLAlchemy session handling.
- context-async-sqlalchemy vs Supabase: Supabase provides a full backend platform with hosted Postgres, whereas this tool is a library for managing async SQLAlchemy sessions locally.
- context-async-sqlalchemy vs Firebase: Firebase is a NoSQL backend service; this library works with relational databases via SQLAlchemy.
context-async-sqlalchemy FAQ
Do I need to replace my existing SQLAlchemy code?+
No, the library is not a wrapper; you can still manually open/close sessions when needed.
Is it compatible with FastAPI or Starlette?+
Yes, it is framework-agnostic and works with any async framework such as FastAPI or Starlette.
How does it handle transactions?+
It automatically commits or rolls back transactions at the end of the request, but you can also manage them manually.
Can I use multiple databases simultaneously?+
Yes, it supports multiple databases and multiple sessions per database.
Is the library open source?+
Yes, it is released under the MIT license and available on GitHub.
Summarized by DevHunt from github.com · Oct 6, 2026. Details may change; check the official site.
context-async-sqlalchemy
Prisma
Drizzle ORM
Supabase
Firebase











