VS CodePostCat
Your API playground inside VS Code
PostCat is a lightweight API testing and management extension for Visual Studio Code. Send requests, manage collections, and view history — all without leaving your editor.
Everything you need for API testing
PostCat brings powerful API testing capabilities directly into your VS Code workflow
Send HTTP Requests
Supports GET, POST, PUT, PATCH, DELETE with full header and body customization
Manage Collections
Save and organize requests with environments for seamless workflow management
View History
See past requests with timestamps and response sizes for easy debugging
Get started in 3 simple steps
Start testing APIs in VS Code within minutes
Install PostCat from the VS Code Marketplace
Search for "PostCat" in the Extensions view or click the install button above
Open PostCat from the Command Palette
Press Ctrl+Shift+P (Cmd+Shift+P on Mac) and type "PostCat" to launch the extension
Send requests and view responses instantly
Start testing your APIs with a clean, intuitive interface right inside VS Code
See PostCat in action
A seamless API testing experience within your favorite editor
Demo Video Coming Soon
VS Code Extension Screenshot
PostCat interface preview