# mountain-loop/yaak

The most intuitive desktop API client. Organize and execute REST, GraphQL, WebSockets, Server Sent Events, and gRPC 🦬

Repository: https://github.com/mountain-loop/yaak
Canonical: https://ross.abutalabs.com/products/yaak
Homepage: https://yaak.app
Language: TypeScript
License: MIT
License Family: permissive
Topics: http-client, tauri, graphql, grpc, sse, websocket, http, postman-alternative, bruno-alternative, insomnia-alternative
Last push: 2026-08-26T23:54:48+00:00

## Health v2 (maintenance only)
Score: 97/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 98, longevity 92
- inputs: {"age_days": 1294, "days_push": 7, "days_rel": 19, "gap_med": 2.0, "n_releases_24m": 59}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 19120, forks 806 (observed 2026-08-28T04:11:27.419743+00:00)

## What it is
Yaak is an open-source, local-first desktop API client for sending HTTP, GraphQL, WebSocket, Server-Sent Events, and gRPC requests, built with Tauri, Rust, and React. It stores data locally as plain files for Git sync, requires no account, includes an agent-friendly CLI, and is free for personal use with paid licenses for commercial use.

## Use cases
- send and organize REST API requests from a desktop app
- test GraphQL queries and pick operations by name
- debug WebSocket and Server-Sent Events connections
- call gRPC endpoints without writing code
- migrate from Postman or Insomnia
- sync API collections via Git with plain-text files
- let AI coding agents create and send API requests via CLI
- authenticate requests with OAuth 2.0, API keys, or 1Password

## When to choose
- you want a fast, privacy-first, offline-capable API client with zero telemetry
- you need one tool covering REST, GraphQL, gRPC, WebSocket, and SSE
- you want request collections stored as plain files for Git versioning
- you're looking for a Postman/Insomnia alternative that works without an account
- you want an API client that AI agents can drive through a CLI

## When to avoid
- you need a commercial-use tool without purchasing a license
- you require browser-based or team-cloud collaboration features out of the box
- you depend on Postman-specific ecosystem features like extensive integrations or mock servers
- you need a headless CI-only HTTP testing tool rather than a desktop GUI

## Facets
- artifact type: application
- maturity: active
- function: http-client, api-framework, websocket, graphql, developer-tools, cli, plugin-system
- domain: developer-tools, apis, web-development
- platform: windows, cross-platform
- tags: api-client, rest, grpc, server-sent-events, postman-alternative, insomnia-alternative, bruno-alternative, local-first, privacy-first, git-sync, tauri, agent-friendly, command-line, macos, linux, desktop

## Member repositories
- mountain-loop/yaak (main) score 97

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:27.419743+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:00:29.413761+00:00, confidence not recorded.
  - readme: https://github.com/mountain-loop/yaak (fetched 2026-08-28T04:11:27.419743+00:00, sha c99447e6b892)
  - homepage: https://yaak.app (fetched 2026-08-29T07:59:14.410507+00:00, sha 5f2a3e021889)
  - site_page: https://yaak.app/documentation (fetched 2026-08-29T07:59:14.420500+00:00, sha 02126cbd7dcb)
  - site_page: https://yaak.app/changelog (fetched 2026-08-29T07:59:14.422459+00:00, sha dcb4bf298439)
  - site_page: https://yaak.app/pricing (fetched 2026-08-29T07:59:14.426084+00:00, sha 4dfb402d1173)
  - site_page: https://yaak.app/changelog/2026.6.0 (fetched 2026-08-29T07:59:14.428519+00:00, sha e9ca1a86457f)
- Data as of 2026-08-30T08:39:29.467469+00:00.