Open-source cypress for back end testing

In plain words

This open-source tool is a Jest and TypeScript-based framework for writing and running backend integration tests. It allows developers to send API calls to a system and validate downstream effects, including calls to microservices via REST and gRPC, as well as database queries and writes. Using OpenTelemetry for observability, it addresses the gap in testing frameworks for complex backend flows and asynchronous systems, offering high-level constructs specifically designed for backend testing rather than frontend browser testing.

written from the facts on this page · September 2026

From the sources

Easily run integration tests for your backends. Contribute to traceloop/jest-opentelemetry development by creating an account on GitHub.

In the maker’s words, at launch

For the past few months we’ve been building a simple jest/typescript-based high-level language for writing and running integration tests. We're open-sourcing it now and are excited to share it with you: https://github.com/traceloop/jest-opentelemetry Why we built this: - There are many solid…

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