head to head · open source
one-api vs agentgateway
one-api has 36,932 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. agentgateway has 4,895 stars, 853 forks, 258 open issues and last shipped yesterday. one-api leads on adoption by 654% (36,932 vs 4,895 stars). one-api is written in JavaScript under MIT; agentgateway is written in Rust under Apache-2.0. one-api has attracted 19% as many forks as stars, agentgateway 17%. agentgateway was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (api-gateway), 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
| one-api | agentgateway | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 4.9K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Rust |
| Last push | 2026-01-09 | 2026-09-17 |
| Forks | ⑂ 6.9K | ⑂ 853 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick one-api if
- You weight community size — 37K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick agentgateway if
- You want the agentgateway feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and agentgateway fits your workflow better
About one-api
One API is a self hosted LLM API management and key redistribution system that exposes many model providers through the standard OpenAI API format, aimed at developers, teams and operators who want a single endpoint, a single key model and a single quota surface across providers.
read the full one-api overview →
About agentgateway
Agentgateway is an open source proxy written in Rust and licensed under Apache 2.0. It is a next generation agentic proxy for AI agents and MCP servers, and it operates inside the Developer Tools, API gateway, Kubernetes, service mesh, and AI gateway ecosystem. The project is built on the MCP and A2A protocols.
read the full agentgateway overview →
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Frequently asked questions
Is one-api or agentgateway more popular?
one-api has 36,932 GitHub stars and agentgateway has 4,895. one-api has the larger community by that measure.
Are one-api and agentgateway free?
Both are open source. one-api is licensed under MIT and agentgateway under Apache-2.0. Neither carries a licence fee.
What is the difference between one-api and agentgateway?
one-api is written in JavaScript and agentgateway in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, one-api or agentgateway?
Choose one-api if you want the larger community (36,932 stars) or its MIT licence terms. Choose agentgateway if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.