head to head · open source
fastapi vs open-agent-connector
fastapi has 103,097 GitHub stars, 10,038 forks, 78 open issues and last shipped 6 days ago. open-agent-connector has 838 stars, 321 forks, 0 open issues and last shipped yesterday. fastapi leads on adoption by 12,203% (103,097 vs 838 stars). fastapi is written in Python under MIT; open-agent-connector is written in Python under Apache-2.0. fastapi has attracted 10% as many forks as stars, open-agent-connector 38%. open-agent-connector was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (fastapi), 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 | open-agent-connector | |
|---|---|---|
| GitHub stars | ★ 103K | ★ 838 |
| License | MIT | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-10-08 | 2026-10-13 |
| Forks | ⑂ 10K | ⑂ 321 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick fastapi if
- You weight community size — 103K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick open-agent-connector if
- You want the open-agent-connector feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and open-agent-connector fits your workflow better
About fastapi
FastAPI is an MIT licensed, high performance Python web framework for building APIs with standard Python type hints, aimed at Python developers and teams that need production ready HTTP services with automatic OpenAPI documentation.
read the full fastapi overview →
About open-agent-connector
Open Agent Connector is an open source, self hosted integration gateway that lets AI agents discover and execute actions against app APIs over the Model Context Protocol or a REST API, built for developers who want to inspect, run, and extend their own agent integration layer.
read the full open-agent-connector overview →
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Frequently asked questions
Is fastapi or open-agent-connector more popular?
fastapi has 103,097 GitHub stars and open-agent-connector has 838. fastapi has the larger community by that measure.
Are fastapi and open-agent-connector free?
Both are open source. fastapi is licensed under MIT and open-agent-connector under Apache-2.0. Neither carries a licence fee.
What is the difference between fastapi and open-agent-connector?
fastapi is written in Python and open-agent-connector in Python. 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 open-agent-connector?
Choose fastapi if you want the larger community (103,097 stars) or its MIT licence terms. Choose open-agent-connector if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.