Curlew: Native API Client

Curlew is a fast, native API client for macOS—built for developers who want a focused workspace for HTTP, GraphQL, and WebSocket requests. Keep your work private: no account, cloud sync, or telemetry. Your workspace is a readable local JSON file, while secrets and tokens stay in your Keychain. Build and explore APIs • Create HTTP requests with query parameters, headers, JSON, XML, form, multipart, and GraphQL bodies. • Connect to WebSockets and inspect live messages; stream Server-Sent Events as they arrive. • Browse GraphQL schemas through introspection and insert fields directly into your query. • Import cURL commands, Postman collections, and OpenAPI specifications; export Postman collections and share code as cURL, Swift, Python, or JavaScript. Test with confidence • Use Bearer, Basic, API key, OAuth 2.0 with PKCE, client certificates, cookies, and Keychain-backed secret variables. • Run collections in order with assertions, response-value extraction, and clear pass/fail results. • Repeat requests to see latency statistics, compare responses, search JSON paths, and inspect HTML, images, XML, cookies, headers, or binary data. Work faster • Organize collections, environments, request tabs, notes, history, and keyboard shortcuts in one lightweight workspace. • Mock an entire collection on localhost while the backend is still taking shape. • Monitor important endpoints from the menu bar and receive a notification when an assertion starts failing. Curlew is a private, dependable companion for building, debugging, and checking the APIs behind your next release.