Yaak API Client
@YaakApp

Offline, open source, and Git friendly API client for REST, GraphQL, WebSockets, SSE, and gRPC β†’ by @GregorySchier πŸ’«

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yaak.app
Joined March 2023
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New release (2026.1)! πŸ”¬ Debug redirects, headers, cookies & more πŸ€– MCP Server plugin for AI integrations ⌨️ Customizable keyboard shortcuts πŸ”€ Reorderable tabs with persistence 🎨 30+ VSCode themes πŸ”Œ Disable any plugin
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New release (2026.9) πŸ“¦ Import from Bruno πŸ“‚ Multi-file import 🧩 Better Insomnia imports
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🧩 Better Insomnia imports Insomnia variables, UUID tags, and response chaining tags now convert to native Yaak templates, and GraphQL requests keep their query, variables, and operation name instead of arriving as an unsendable body.
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Be sure to check out the full changelog! yaak.app/changelog/2026.9.0

Import Bruno Collections, ZIPs, and Batches

Import Bruno collections, open collection folders and ZIP archives, and bring in multiple sources at once

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Yaak just crossed $5k MRR. Every feature is MIT licensed and the app runs fully offline. I wasn't sure it would work but here we are... yaak.app/blog/funding-open-s…

Funding MIT Software with Commercial-use Binaries

Yaak earns about $5k MRR from commercial licenses for its binaries. Why I chose this model, how it's working…

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New release (2026.8) πŸ”„ Import into existing workspaces 🧭 JSON response breadcrumbs ✨ Example gRPC messages πŸ”‘ Custom OAuth 2.0 params 🐧 Official Arch Linux package ⚑ More responsive under load
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⚑ More responsive under load A single database writer prevents competing writes from exhausting the pool. Connections: 11 β†’ 4 Slowest write, 30 sends: 98 β†’ 7 ms Slowest write, 100 sends: 375 β†’ 4 ms
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Be sure to check out the full changelog! yaak.app/changelog/2026.8.0

Import Merging, JSON Breadcrumbs, and Better Performance

Merge re-imports into the existing workspace, add custom OAuth 2.0 headers and params, authenticate with HTTP Digest, and install from the official Arch repos

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Yaak API Client retweeted
Catalin
@catalinmpit
Sep 17
I'm happy to see more and more open source alternatives popping up. Docsend β†’ @papermarkio Postman β†’ @YaakApp Wispr Flow β†’ Handy Jira β†’ @planepowers Google Analytics β†’ @OpenPanelDev DocuSign β†’ @documenso Notion β†’ @appflowy Screen Studio β†’ @cap Clerk β†’ @hanko_io GitHub β†’ @giteaio
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New release (2026.7) πŸ”— Import from a URL πŸ•˜ Filter history with pinning πŸ“„ GraphQL schemas from a file πŸ“₯ New OpenAPI importer πŸ”Œ Plugin API for reading response bodies
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πŸ“₯ New OpenAPI importer OpenAPI 3.x and Swagger 2 documents are now parsed directly into Yaak instead of round-tripping through the Postman converter. Large schemas that used to fail on import now work, and the result matches what the spec describes:
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Be sure to check out the full changelog! yaak.app/changelog/2026.7.0

URL Import, Filter History, and GraphQL Schema Files

Import from a URL or drag-and-drop, recall recent response filters, load GraphQL schemas from a file, and a new OpenAPI importer that handles large schemas

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