Yaak

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Local-first desktop API client for REST, GraphQL, gRPC and WebSocket, with requests versioned in Git and no account required.

yaak.app
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About Yaak

Yaak is a desktop API client for macOS, Windows and Linux, built by the original creator of Insomnia and launched publicly in January 2024. Developers use it to send and debug HTTP, REST, GraphQL, gRPC, WebSocket and server-sent event requests, inspect responses and timelines, organize requests into workspaces and environments and chain values between calls with template functions. Work stays on the user's machine with no account, cloud sync or telemetry, and teams collaborate by storing requests as YAML files in Git, with optional encrypted secrets. Plugins, a CLI and an MCP server let scripts and AI agents use the same requests. The source is MIT licensed, and commercial use of the official app requires a paid license.

Listed inAPI ManagementasAPI Development & Testing

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Features

Send REST, GraphQL, gRPC, WebSocket and SSE requests
Version requests as YAML files in Git
Encrypt shared secrets with OS keychain keys
Chain requests with template functions
Extend auth and importers with plugins
Run requests from a CLI and MCP server
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HeadquartersCanada
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yaak.app