# Momentic launches Mo, an AI QA agent that tests apps and catches bugs

> Original title: Launch HN: Momentic (YC W24) – Agents that catch bugs by using your app

- Source: Hacker News · Launch HN, YC launches (10+ points)
- Published: 2026-11-02T17:05:25.000Z
- Bad Influence: https://badinfluence.news/items/ag3x75xu0s0u4s006xucq7lyv
- Original: https://momentic.ai/

## Summary

Momentic, a Y Combinator W24 company, launches Mo, an AI QA engineer that tests apps end to end from plain-English test descriptions. The company says Mo has created 77,813 tests, executed 70,607,819 test runs, and caught 117,010 bugs. Tests are stored as YAML in the repository and can run locally or in CI, with exit codes usable as a required merge or deploy check.