Artificial Intelligence1 min read

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

By · Published by Everything Blog

In short

The Y Combinator-backed startup allows developers to define end-to-end tests and assertions using plain-English YAML files triggered via local command lines or CI pipelines. The artificial intelligence agent operates across managed browsers and hosted mobile emulators, consulting an internal knowledge base of business rules to validate intended behaviors. When interface changes cause unexpected failures, the system autonomously inspects screenshots and submits pull requests to repair broken steps. Early enterprise adopters have successfully reduced daily test runs from seven hours to just thirty minutes.

Key points

  • The system uses an internal knowledge base of business rules to navigate applications and…: The system uses an internal knowledge base of business rules to navigate applications and verify intended outcomes.
  • Early adopters like Poe.com reduced their daily test execution times from seven hours to…: Early adopters like Poe.com reduced their daily test execution times from seven hours to thirty minutes.
  • The platform includes enterprise-ready features such as SOC 2 Type 2 certification, singl…: The platform includes enterprise-ready features such as SOC 2 Type 2 certification, single sign-on, and audit logging.

Sources checked by our analysis pipeline: 1

New-device 2FA prompt skipped

At a consumer fintech app, a login routing change bypassed the new-device verification step.

A security checkpoint was silently skipped.

Mo is an AI QA engineer that tests your app end to end. Verify critical flows and find bugs from a prompt.

Trusted by leading engineering teams.

Trusted in production by teams shipping every day.

Code moves faster. Verification has to keep up.

Coding agents have made it dramatically faster to build software. The bottleneck is now knowing it works. Verification belongs in the agent loop. Agents need evidence from the app itself to verify that their changes deliver the intended behavior.

ExploreWrite the user flows you need to verify. Momentic runs the tests against your app. Reuse successful AI actions and review proposed repairs as the app changes.

1 of 5

Verification from your editor to CI.

Write steps and assertions in plain-English YAML.

Review and version the tests in your repository.

Describe a user flow and its expected result in plain English. Keep the steps and assertions in YAML files your team and coding…

Artificial Intelligence