# LargitData — FoundFact

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [David Chiu](https://cerebralvalley.ai/u/LargitData)
- **GitHub:** https://github.com/ywchiu/foundfact
- **Demo video:** https://youtu.be/v88sLQ7WtPA
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2371

FoundFact brings a scam check to the place people encounter suspicious posts: their social feed. A Chrome extension marks Facebook and Threads posts that show scam signals. Click Why and a Meta Muse agent investigates, showing its progress and a report with the risk, checkable claims, retrieved evidence and practical next steps. Claims without supporting evidence are marked insufficient, rather than guessed true or false.

The public website, https://foundfact.infominer.io, also accepts pasted text or a screenshot in English or Traditional Chinese. Muse reads visible text and web addresses in the image before investigating. The system uses a library of 137 scams already exposed by fact-checkers and 115,585 fraud websites from Taiwan police data.

The extension is standalone BYOK: visible posts are screened with Jev using the user's key; Muse is called directly only after Why is clicked. It does not consume the public website's backend resources. Install from the public repository: run bash extension/build.sh, load extension/ unpacked in Chrome Developer mode, open Settings, enter Jev and Meta Muse keys, save, then reload Facebook or Threads. The website can be tried without installing the extension or supplying keys.

## More from Meta Global AI Developer Hackathon

- [Ram-Altman](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2368)
- [AxeCap](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2369)
- [GradientWarrior](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2370)
- [Lautaro Pereyra](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2372)
- [Iris AI 2.0](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2373)
- [Aryan Karmore](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2374)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/2371. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt