A desktop API client that works offline.
Build, send and debug REST requests from a native app for Windows, macOS and Linux. Mock servers, JSON bins and a built-in AI agent — with no request limits and nothing leaving your machine.
Everything in the box, on the free tier
There is no paid tier gating the useful parts. The whole app is the free app.
Works with the network off
Everything runs locally — no sign-in wall, no cloud round-trip. Built for air-gapped networks, planes and hotel wifi.
Native, not a browser tab
Instant startup and instant responses. No Electron-sized wait before you can send the first request.
Your requests stay yours
Collections and history live on your machine. Cloud sync is opt-in, encrypted, and you pick what syncs.
Mock servers & JSON bins
Stand up a fake endpoint before the real one exists, and keep reusable payloads a click away.
Collections that scale
Folders, shared environments, variables and ordered test runs — without a paid team plan.
350+ APIs built in
Browse and call the whole APIVerve catalog from inside the app: weather, DNS, currency, email validation and more.
Compose a request without fighting the UI
Every HTTP method, custom headers, auth schemes and JSON, XML or form bodies — with syntax highlighting and validation as you type.
- Visual builder with highlighted request and response
- Environment variables and dynamic values
- Pre-request scripts and assertions
- Mock servers and JSON bins built in
Organise once, re-run forever
Group requests into collections with nested folders, shared variables and multiple workspaces — then import what you already have from Postman or Insomnia.
- Hierarchical folders per project
- Shared environments across a collection
- Multiple workspaces side by side
- Import and export in common formats
350+ production APIs, one key
Studio ships with the APIVerve catalog built in, so you can call a real endpoint the minute you install it — no scaffolding, no sample server.