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Step CI

Open-source API testing and monitoring toolkit

Developer Tools & Git ★ 1.9k stars Easy setup MPL-2.0

Step CI is an open-source toolkit for automated API testing and monitoring driven by simple YAML workflow files. It can be self-hosted and run in CI to validate REST, GraphQL and gRPC APIs.

Official siteSource code

Key features

  • YAML-defined API tests
  • REST, GraphQL and gRPC
  • CI-friendly
  • Load testing

Strengths

  • Released under the MPL-2.0 license
  • Easy to set up — beginner-friendly
  • First-class Docker support for quick deployment
  • Active community (1.9k GitHub stars)

Is Step CI secure?

OSV.dev has no published security advisories for Step CI's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

Step CI replaces

Self-hosted Postman Monitors alternatives

Health badge

Maintain Step CI? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 16 · at risk

Markdown
[![SelfHostIndex health score for Step CI](https://selfhostindex.com/badge/stepci.svg)](https://selfhostindex.com/app/stepci/)
HTML
<a href="https://selfhostindex.com/app/stepci/"><img src="https://selfhostindex.com/badge/stepci.svg" alt="SelfHostIndex health score for Step CI"></a>
reStructuredText
.. image:: https://selfhostindex.com/badge/stepci.svg
   :alt: SelfHostIndex health score for Step CI
   :target: https://selfhostindex.com/app/stepci/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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