
Open source API client. No account, no cloud sync.
A free alternative to Postman, Insomnia and Bruno that needs no account. REST, GraphQL, gRPC, WebSocket, Socket.IO and MQTT in one app, with collections saved as plain files you can commit. The desktop app, web app and CLI run the same Go engine, so a CI run matches what you saw while testing. Secrets stay in your own manager, and an MCP server lets coding agents send saved requests with values redacted. MIT licensed.
Gostman is an open-source API client that supports multiple protocols including REST, GraphQL, and gRPC, without requiring an account or cloud sync. It allows users to save collections as plain files and ensures privacy by keeping secrets in the user's own manager.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.