head to head · open source
fastapi vs concord
fastapi has 104,566 GitHub stars, 10,179 forks, 78 open issues and last shipped yesterday. concord has 660 stars, 44 forks, 18 open issues and last shipped 3 months ago. fastapi leads on adoption by 15,743% (104,566 vs 660 stars). fastapi is written in Python under MIT; concord is written in C under MIT. fastapi has attracted 10% as many forks as stars, concord 7%. fastapi was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 20902 open source comparisons
Side by side
| fastapi | concord | |
|---|---|---|
| GitHub stars | ★ 105K | ★ 660 |
| License | MIT | MIT |
| Written in | Python | C |
| Last push | 2026-11-02 | 2026-08-11 |
| Forks | ⑂ 10K | ⑂ 44 |
| 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 concord if
- You want the concord feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C
- You evaluated both and concord 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 concord
[migrating shield]: [migrating link]: [migrating orca link]: [discord shield]: [discord invite]: [discord config init]: [discord config get field]: Concord C Discord API library [ ![discord shield][] ][discord invite] [ ![migrating shield][] ][migrating link] 🚨 Concord is not dead! 🚨 Development has been happening in the dev branch. We are working on new features and improvements. To access the latest version of the library, please check out the dev branch. About Concord is an asynchronous C99 Discord API library with minimal external dependencies, and a low level translation of the Discord official…
read the full concord overview →
More in Developer Tools
Related comparisons
More API Development & Testing projects
Compare either of these against the rest of the API Development & Testing field.
Frequently asked questions
Is fastapi or concord more popular?
fastapi has 104,566 GitHub stars and concord has 660. fastapi has the larger community by that measure.
Are fastapi and concord free?
Both are open source. fastapi is licensed under MIT and concord under MIT. Neither carries a licence fee.
What is the difference between fastapi and concord?
fastapi is written in Python and concord in C. 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 concord?
Choose fastapi if you want the larger community (104,566 stars) or its MIT licence terms. Choose concord if its feature set, stack or MIT licence fits better. Both are self-hostable.