head to head · open source
fastapi vs serverless-java-container
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. serverless-java-container has 1,565 stars, 574 forks, 113 open issues and last shipped yesterday. fastapi leads on adoption by 6,582% (104,566 vs 1,565 stars). fastapi is written in Python under MIT; serverless-java-container is written in Java under Apache-2.0. fastapi has attracted 10% as many forks as stars, serverless-java-container 37%. fastapi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (api), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| fastapi | serverless-java-container | |
|---|---|---|
| GitHub stars | ★ 105K | ★ 1.6K |
| License | MIT | Apache-2.0 |
| Written in | Python | Java |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 10K | ⑂ 574 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 105K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick serverless-java-container if
- You want the serverless-java-container feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and serverless-java-container fits your workflow better
About fastapi
FastAPI framework, high performance, easy to learn, fast to code, ready for production Documentation : Source Code : FastAPI is a modern, fast (high performance), web framework for building APIs with Python based on standard Python type hints. The key features are: Fast : Very high performance, on par with NodeJS and Go (thanks to Starlette and Pydantic). One of the fastest Python frameworks available. Fast to code : Increase the speed to develop features by about 200% to 300%. Fewer bugs : Reduce about 40% of human (developer) induced errors. Intuitive : Great editor support. Completion everywhere. Less time…
read the full fastapi overview →
About serverless-java-container
Serverless Java container The aws serverless java container makes it easy to run Java applications written with frameworks such as Spring, Spring Boot, Apache Struts, Jersey, or Spark in AWS Lambda. Serverless Java Container natively supports API Gateway's proxy integration models for requests and responses, you can create and inject custom models for methods that use custom mappings. Currently the following versions are maintained: Follow the quick start guides in our wiki to integrate Serverless Java Container with your project: Spring quick start Spring Boot 2 quick start Spring Boot 3 quick start Spring Boot…
read the full serverless-java-container overview →
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Frequently asked questions
Is fastapi or serverless-java-container more popular?
fastapi has 104,566 GitHub stars and serverless-java-container has 1,565. fastapi has the larger community by that measure.
Are fastapi and serverless-java-container free?
Both are open source. fastapi is licensed under MIT and serverless-java-container under Apache-2.0. Neither carries a licence fee.
What is the difference between fastapi and serverless-java-container?
fastapi is written in Python and serverless-java-container in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, fastapi or serverless-java-container?
Choose fastapi if you want the larger community (104,566 stars) or its MIT licence terms. Choose serverless-java-container if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.