API & HTTP Tools

API Request Builder

API Request Builder with practical API, HTTP, cURL, GraphQL, OpenAPI, OAuth, webhook, and header workflow helpers.

API request workspace Browser workspace 5 uses
Ready to build a request
Request

Build your request

Browser-side
Query parametersAppended to the endpoint URL
No query parameters yet.
Request previewcURL
curl 'https://api.example.com/v1/users'
Response

Inspect the result

Not sent

              
Your response will appear here Build a request on the left and press Send request.

Use API Request Builder without a complicated workflow.

Use API Request Builder when you need a practical result, not a complicated workflow. It keeps the main controls close to the input area so you can review, copy, and reuse the output with less back-and-forth.

How to use

01Choose an HTTP method and enter an endpoint

02Add query parameters, headers, authentication, or a request body

03Send the request and inspect the response body, headers, timing, and size

Workspace highlights

Request history and cURL import

Query, headers, auth, JSON and form-data builders

Developer code generation for 12+ platforms

Searchable response body, JSON tree and error-based repair