head to head · open source
Insomnia vs metamcp
Insomnia has 40,111 GitHub stars, 2,388 forks, 874 open issues and last shipped yesterday. metamcp has 2,744 stars, 445 forks, 110 open issues and last shipped 4 months ago. Insomnia leads on adoption by 1,362% (40,111 vs 2,744 stars). Insomnia is written in TypeScript under Apache-2.0; metamcp is written in TypeScript under MIT. Insomnia has attracted 6% as many forks as stars, metamcp 16%. Insomnia 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.
← all 20902 open source comparisons
Side by side
| Insomnia | metamcp | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 2.7K |
| License | Apache-2.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-06-22 |
| Forks | ⑂ 2.4K | ⑂ 445 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Insomnia if
- You weight community size — 40K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- 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 Insomnia
Insomnia API Client Insomnia is an open source, cross platform API client for GraphQL, REST, WebSockets, Server Sent Events (SSE), gRPC and any other HTTP compatible protocol. With Insomnia you can: Debug APIs using the most popular protocols and formats. Design APIs using the native OpenAPI editor and visual preview. Test APIs using native test suites and collection runner. Mock APIs using a cloud or self hosted mocking server. Build CI/CD pipelines using the native Insomnia CLI for linting and testing. Collaborate with others using the many collaboration features. And more including the ability to use 3rd…
read the full Insomnia 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…
read the full metamcp overview →
More in Developer Tools
Related comparisons
More API Development & Testing projects
Compare either of these against the rest of the API Development & Testing field.
Frequently asked questions
Is Insomnia or metamcp more popular?
Insomnia has 40,111 GitHub stars and metamcp has 2,744. Insomnia has the larger community by that measure.
Are Insomnia and metamcp free?
Both are open source. Insomnia is licensed under Apache-2.0 and metamcp under MIT. Neither carries a licence fee.
What is the difference between Insomnia and metamcp?
Insomnia is written in TypeScript 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, Insomnia or metamcp?
Choose Insomnia if you want the larger community (40,111 stars) or its Apache-2.0 licence terms. Choose metamcp if its feature set, stack or MIT licence fits better. Both are self-hostable.