head to head · open source
one-api vs metamcp
one-api has 36,940 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. metamcp has 2,672 stars, 433 forks, 110 open issues and last shipped 3 months ago. one-api leads on adoption by 1,282% (36,940 vs 2,672 stars). one-api is written in JavaScript under MIT; metamcp is written in TypeScript under MIT. one-api has attracted 19% as many forks as stars, metamcp 16%. metamcp 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.
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Side by side
| one-api | metamcp | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 2.7K |
| License | MIT | MIT |
| Written in | JavaScript | TypeScript |
| Last push | 2026-01-09 | 2026-06-22 |
| Forks | ⑂ 6.9K | ⑂ 433 |
| 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 metamcp if
- You want the metamcp feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and metamcp 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 metamcp
🚀 MetaMCP (MCP Aggregator, Orchestrator, Middleware, Gateway in one docker) 📢 Latest Update: This ai dev branch will be the forward onging dev branch which contains ai agent changes. Please test before you build the image based on this branch. There has been many PRs thanks to the community but merging and reviewing them has been a growing effort too. I decided to include ai changes. At least so far the core functionality works. There is also a community maintained fork (ty a lot!): 📢 Update: From the author: apologize for some recent maintainence delay, but will at least keep merging PRs, more background [her…
read the full metamcp overview →
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Frequently asked questions
Is one-api or metamcp more popular?
one-api has 36,940 GitHub stars and metamcp has 2,672. one-api has the larger community by that measure.
Are one-api and metamcp free?
Both are open source. one-api is licensed under MIT and metamcp under MIT. Neither carries a licence fee.
What is the difference between one-api and metamcp?
one-api is written in JavaScript and metamcp in TypeScript. 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 metamcp?
Choose one-api if you want the larger community (36,940 stars) or its MIT licence terms. Choose metamcp if its feature set, stack or MIT licence fits better. Both are self-hostable.