1.keploy / keployOpen-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.testingtest-automationapi-testingtesting-toolstest-automation-frameworktest-generation+8 moreGoAPACHE-2.019K total2.4K forks+2,368 starsfrom 16,606 · score 7.77
2.chapar-rest / chaparFast, native API client for REST, gRPC, WebSocket and GraphQL. A local-first Postman alternative written in Go: no Electron, no account, no cloud.apigolanggrpcresttestingapi-client+12 moreGoBSD-3-CLAUSE728 total44 forks+37 starsfrom 689 · score 3.64