LangSmith Observability gives you complete visibility into agent behavior with tracing, real-time monitoring, alerting, and high-level insights into usage.

Design, debug, and test APIs locally or in the cloud

Hoppscotch is an open-source API development ecosystem that helps you create and test your API requests saving precious time in development.

Unifying API testing, API Performance testing, API Mocks and UI testing.

The world’s first API testing platform that auto-generates unit test cases with dependency mocks from API calls. Using advanced AI, it simplifies test creation, debugging, and evolution, ensuring comprehensive coverage and boosting software quality.

Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.