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Yaak
v2026.7.0 → URL import and filter history

The local-first API client

Your requests, on your machine. Version them with Git, run them from your terminal, and put your agents to work.

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149k
Open Source

Apple Linux Available for Mac, Windows, and Linux

Just an API client. Built to do it well.

No platform, no dashboard, no AI sidebar. All the work goes into the client.

  • 3,286 requests in one workspace, no lag
  • Built with Rust and Tauri, not Electron
  • See every detail of every request in the Timeline
  • Chain requests and reuse values without writing scripts
  • Extend auth, importers, and template functions with plugins
Template functions Write a plugin

Collaborate through Git

Commit requests, review changes, and share them through the Git workflow your team already uses. Collaboration is not a plan tier.

  • One YAML file per request, folder, and environment
  • Branch, commit, and diff from the built-in Git UI
  • Keep secrets encrypted when committing to Git
Git sync Secrets encryption

Your data stays under your control

The desktop app stores your work locally and sends API requests directly to your servers, without routing them through a Yaak proxy. You choose what to share and where.

  • No account required, no automatic cloud sync
  • Zero telemetry
  • Secrets encrypted with keys in the OS keychain
  • MIT-licensed source you can inspect and build yourself
Security and privacy Source on GitHub
Encrypted values shown obscured in the Yaak interface

Built for agents, without built-in AI

Work with your agents in the same workspace. Connect through the CLI or MCP server so they can work with your existing requests, without maintaining a separate collection.

  • Changes made through the CLI show up in the app
  • MCP server plugin for Claude, Cursor, and more
  • Install the CLI skill with yaak agent install
CLI and agents MCP server
Terminal output of yaak agent install writing a skill into the Claude Code, Cursor, Codex, and OpenCode skill directories

Runs inside the security perimeter you already have

Yaak hosts nothing, so there is no vendor data flow to assess. Your MDM, VPN, and repository permissions already cover it.

  • SSO through any OpenID Connect provider
  • SCIM provisioning from your identity provider
  • One license per person, managed from a dashboard
Security and privacy Single sign-on
Yaak organization dashboard with the user provisioning panel open

Shipping since January 2024

Built with your feedback, improved with every release.

2026.7.0Aug 30, 2026URL Import, Filter History, and GraphQL Schema Files
2026.6.0Aug 14, 2026No Lag at 3,000+ Requests, Base64 Previews, and an Agent Skill
2026.5.0Jul 21, 2026Readable Streaming Responses for LLM APIs and GraphQL Operation Names
2026.4.0May 18, 2026Settings Overrides, Cookie Editing, and Git Status
View Changelog View Roadmap

Trusted by developers

Müjdat Korkmaz
@mujdatkorkmaz
I definitely recommend it. I tried others as well, but so far I find Yaak to be the most complete open source alternative to Postman
Nir Galon
@nirgn975
After testing countless others that either lacked features or tried to dazzle with needless AI, Yaak stands out as a true masterpiece. 🙌
Alex Yumashev
@jitbit
Yaak is my new favorite REST client P.S. Ironically, made by the same guy who built Insomnia, sold it, now making a new one 🤣🤣

Hey, I'm Greg 👋🏼

Having created and sold Insomnia in 2019, I didn't think I'd build another API client, but the tools changed for the worse and I found myself looking for something better.

I started over and built something I'm proud to put my name behind.

Why I built Yaak
Yaak logo

Your next request starts here

Free for personal use, no account needed. Import from Postman, Insomnia, Bruno, OpenAPI, or curl.

Download
149k