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Features

Cyber API is a native API client for HTTP, GraphQL, gRPC and server-sent events. GPUI — the engine behind the Zed editor — draws it on the GPU, so a project with thousands of APIs opens at once.

• ⚡ Native and instant — macOS, Windows and Linux; no Electron, no web view.
• 🧩 Every kind of API — REST; GraphQL with schema completion; gRPC from server reflection or .proto files; WebSocket; event streams shown as they arrive.
• 🔍 See what really happened — DNS, TCP, TLS and server time; the request as it went out; JSON as a tree or JSONPath; history, and the same checks from the app or cyberapi-cli in CI.
• 🔗 Less copy and paste — switch environments beside the project’s name, inherit auth from a folder, chain a response with {{g(api, data.token)}}, and follow an OpenAPI source while the values and secrets you typed stay.
• 👥 Built for teams — a self-hosted web version from the same code; the desktop app signs in, works offline and syncs when you…