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HomeAPI / ConfigAPI Request Builder

API Request Builder

This tool is not yet implemented.

About API Request Builder

API Request Builder preview - API / Config tool

Build HTTP requests with headers, auth, and body — preview and execute. Part of the DevTools Surf developer suite. Browse more tools in the API / Config collection.

Use Cases

  • Build and test API requests without writing any code
  • Prototype auth flows (OAuth2, API key, Bearer token) interactively
  • Debug API responses with syntax-highlighted body and header views
  • Export requests as code snippets for integration into applications

Tips

  • Use the environment variable panel to store base URLs and auth tokens — switch between dev/staging/prod without editing each request
  • The 'Auth' tab generates the correct Authorization header format for Bearer, Basic, API key, and OAuth2 token types
  • Click 'Code' to export the request as cURL, JavaScript fetch, Python requests, or Go http — useful for sharing with teammates

Fun Facts

  • The HTTP/1.1 specification (RFC 2616) was published in 1999 and remained the dominant protocol for 16 years until HTTP/2 in 2015. HTTP/3 (based on QUIC) became an RFC in 2022.
  • Postman started as a Chrome extension in 2012 and was downloaded over 30 million times before becoming a standalone app. It now has over 20 million registered users — among the fastest-growing developer tools ever.
  • The OPTIONS HTTP method, used for CORS preflight requests, was part of the original HTTP/1.1 spec but rarely used until browsers began enforcing CORS rules around 2010.

FAQ

Can I send files or multipart form data?
Yes — switch the body type to 'form-data' to upload files or mix file and text fields. The Content-Type header is set to multipart/form-data automatically.
Does it support GraphQL?
Basic GraphQL queries work by sending a JSON body with a 'query' field to a GraphQL endpoint. For schema introspection and explorer features, use the dedicated GraphQL Explorer tool.
Is my request data stored anywhere?
No — requests are built and executed client-side. Nothing is logged or stored on the server. Auth tokens and request bodies stay in your browser session only.

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