keploy / keploy

Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.

unkn0wn-root / resterm

Terminal API client for HTTP, GraphQL, gRPC, WebSocket and SSE. Plain .http files you can diff and version, with scripted tests, workflows, mocks, recorder, and a CLI runner for CI.

chapar-rest / chapar

Fast, native API client for REST, gRPC, WebSocket and GraphQL. A local-first Postman alternative written in Go: no Electron, no account, no cloud.

steinfletcher / apitest

A simple and extensible behavioural testing library for Go. You can use api test to simplify REST API, HTTP handler and e2e tests.

k1LoW / runn

runn is a package/tool for running operations following a scenario.

Pikopod / pikopod

A sandbox for the third-party APIs you depend on. Built from the provider's spec, it fails on purpose, and it replays the exact failure production hit.