head to head · open source
one-api vs kiro-gateway
one-api has 36,932 GitHub stars, 6,867 forks, 1,036 open issues and last shipped 8 months ago. kiro-gateway has 2,281 stars, 552 forks, 103 open issues and last shipped 4 months ago. one-api leads on adoption by 1,519% (36,932 vs 2,281 stars). one-api is written in JavaScript under MIT; kiro-gateway is written in Python under AGPL-3.0. one-api has attracted 19% as many forks as stars, kiro-gateway 24%. kiro-gateway was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (api-gateway, claude, openai), 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 | kiro-gateway | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 2.3K |
| License | MIT | AGPL-3.0 |
| Written in | JavaScript | Python |
| Last push | 2026-01-09 | 2026-05-18 |
| Forks | ⑂ 6.9K | ⑂ 552 |
| 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 kiro-gateway if
- You want the kiro-gateway 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 kiro-gateway 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 kiro-gateway
Kiro Gateway is an open source proxy API gateway that turns the Claude and other models available inside Kiro IDE and Kiro CLI (Amazon Q Developer / AWS CodeWhisperer) into OpenAI and Anthropic compatible API endpoints, for developers who want to reach those models from any client.
read the full kiro-gateway overview →
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Frequently asked questions
Is one-api or kiro-gateway more popular?
one-api has 36,932 GitHub stars and kiro-gateway has 2,281. one-api has the larger community by that measure.
Are one-api and kiro-gateway free?
Both are open source. one-api is licensed under MIT and kiro-gateway under AGPL-3.0. Neither carries a licence fee.
What is the difference between one-api and kiro-gateway?
one-api is written in JavaScript and kiro-gateway 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, one-api or kiro-gateway?
Choose one-api if you want the larger community (36,932 stars) or its MIT licence terms. Choose kiro-gateway if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.