GoKawiilMomentic launches YC W24 tool for AI-driven end-to-end app testing
Momentic, a Y Combinator W24 startup, introduced a testing platform where AI agents interact with a web or mobile app the way a user would to detect bugs. Tests are written as YAML files describing natural-language steps and assertions, such as logging in, adding items to a cart, and verifying checkout totals, which the agents then execute against the live application.
GoKawiil's interpretation of the reporting above, not reported fact.
By letting testers describe actions in plain language rather than brittle selector-based scripts, Momentic's approach could reduce the maintenance burden that often makes automated UI testing unpopular with engineering teams. Its appearance as a Launch HN post suggests the founders are seeking early adopters and feedback from developers before wider go-to-market efforts.
- Momentic uses AI agents to perform real user actions for end-to-end testing
- Tests are defined in reusable YAML modules with natural-language steps and assertions
- The product was publicly introduced via a Launch HN post from a YC W24 company
Source: momentic.ai, 2026-11-02
Published there as: “Launch HN: Momentic (YC W24) – Agents that catch bugs by using your app”
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