head to head · open source
caddy vs AIstudioProxyAPI
caddy has 76,234 GitHub stars, 5,023 forks, 286 open issues and last shipped yesterday. AIstudioProxyAPI has 2,512 stars, 426 forks, 24 open issues and last shipped 5 months ago. caddy leads on adoption by 2,935% (76,234 vs 2,512 stars). caddy is written in Go under Apache-2.0; AIstudioProxyAPI is written in Python under AGPL-3.0. caddy has attracted 7% as many forks as stars, AIstudioProxyAPI 17%. caddy was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (reverse-proxy), 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
| caddy | AIstudioProxyAPI | |
|---|---|---|
| GitHub stars | ★ 76K | ★ 2.5K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Go | Python |
| Last push | 2026-10-02 | 2026-04-22 |
| Forks | ⑂ 5.0K | ⑂ 426 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick caddy if
- You weight community size — 76K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick AIstudioProxyAPI if
- You want the AIstudioProxyAPI feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and AIstudioProxyAPI fits your workflow better
About caddy
Caddy is a Go based, Apache 2.0 licensed HTTP/1.1, HTTP/2, and HTTP/3 web server and reverse proxy that obtains and renews TLS certificates automatically by default, built for operators and teams who want every site on HTTPS without maintaining a separate certificate workflow.
read the full caddy overview →
About AIstudioProxyAPI
AIstudioProxyAPI is a self hosted Python middleware that turns the Google AI Studio web interface into an OpenAI compatible API endpoint, for developers who want to call Gemini models through standard OpenAI clients without an official API key.
read the full AIstudioProxyAPI overview →
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Frequently asked questions
Is caddy or AIstudioProxyAPI more popular?
caddy has 76,234 GitHub stars and AIstudioProxyAPI has 2,512. caddy has the larger community by that measure.
Are caddy and AIstudioProxyAPI free?
Both are open source. caddy is licensed under Apache-2.0 and AIstudioProxyAPI under AGPL-3.0. Neither carries a licence fee.
What is the difference between caddy and AIstudioProxyAPI?
caddy is written in Go and AIstudioProxyAPI 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, caddy or AIstudioProxyAPI?
Choose caddy if you want the larger community (76,234 stars) or its Apache-2.0 licence terms. Choose AIstudioProxyAPI if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.