head to head · open source
Yaak vs open-agent-connector
Yaak has 19,316 GitHub stars, 831 forks, 19 open issues and last shipped 2 days ago. open-agent-connector has 838 stars, 321 forks, 0 open issues and last shipped yesterday. Yaak leads on adoption by 2,205% (19,316 vs 838 stars). Yaak is written in TypeScript under MIT; open-agent-connector is written in Python under Apache-2.0. Yaak has attracted 4% as many forks as stars, open-agent-connector 38%. open-agent-connector 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
| Yaak | open-agent-connector | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 838 |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-10-12 | 2026-10-13 |
| Forks | ⑂ 831 | ⑂ 321 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Yaak if
- You weight community size — 19K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick open-agent-connector if
- You want the open-agent-connector feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and open-agent-connector fits your workflow better
About Yaak
Yaak is a desktop API client for REST, GraphQL, gRPC, WebSocket, and Server Sent Events. It is built with Tauri, Rust, and React, and it lives in the developer tools ecosystem for API development and testing. The project presents itself as an offline first, privacy first alternative to Postman, Insomnia, and Bruno.
About open-agent-connector
Open Agent Connector is an open source, self hosted integration gateway that lets AI agents discover and execute actions against app APIs over the Model Context Protocol or a REST API, built for developers who want to inspect, run, and extend their own agent integration layer.
read the full open-agent-connector 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 Yaak or open-agent-connector more popular?
Yaak has 19,316 GitHub stars and open-agent-connector has 838. Yaak has the larger community by that measure.
Are Yaak and open-agent-connector free?
Both are open source. Yaak is licensed under MIT and open-agent-connector under Apache-2.0. Neither carries a licence fee.
What is the difference between Yaak and open-agent-connector?
Yaak is written in TypeScript and open-agent-connector 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, Yaak or open-agent-connector?
Choose Yaak if you want the larger community (19,316 stars) or its MIT licence terms. Choose open-agent-connector if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.