Stop switching tools
between every protocol.
HTTP, GraphQL, gRPC, WebSocket, Socket.IO, MQTT, MCP, and AI providers, in one collaborative workspace - built for teams who are tired of juggling three API clients to test one product.
No credit card. Free forever for small teams.
Built for the whole request, not just the URL.
One client. Every protocol.
Most API clients bolt GraphQL or WebSocket support on as an afterthought. Request Lab was built protocol-agnostic from the start - the same workspace, the same variables, the same team.
Real-time collaboration
Teammates edit the same workspace live, with roles, invitations, and a full audit log.
Code snippets, instantly
curl, JS fetch, Node axios, or Python requests - generated from the exact request you built.
Collection Runner
Run a folder against CSV/JSON data, with pass/fail assertions per iteration.
Mock Servers
Turn saved examples into a public mock endpoint - no backend required to start.
Scheduled Monitors
Cron-based health checks, with email alerts the moment something fails.
Import in seconds
Paste a curl command, or import an OpenAPI/Swagger spec or Postman collection.
Dynamic variables & signing
{{$guid}}, {{$timestamp}}, plus declarative pre-request actions for HMAC-signed requests.
Reach your private network too
The hosted app can't reach APIs on your laptop, office LAN, or VPN - install the free desktop agent on a machine that can, and it bridges those requests for you.
The macOS build isn't notarized yet, so the first launch gets blocked. Fix it with either: System Settings → Privacy & Security → scroll down → "Open Anyway", or run xattr -cr /Applications/Request\ Lab.app in Terminal. Prefer a .deb?
Bring your whole API surface into one workspace.
Free to start. No credit card required.
Start for free