# Sightpass

- **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:** [Austin John Ogbormeh](https://cerebralvalley.ai/u/ost_een)
- **GitHub:** https://github.com/Osteeen/sightpass
- **Demo video:** https://www.youtube.com/watch?v=2o_G-Gq8ugs
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1559

Stores are shutting AI shopping agents out because they can't trust them. Amazon blocked Meta's own Muse shopping agent, and banks keep asking who answers when an agent goes wrong. Spending limits can say what an agent may buy, but not whether a web page tricked it into buying something else.

Sightpass checks what an agent actually saw before it pays. With every purchase, the agent sends screenshots of the pages it was looking at. A fixed rules engine decides first, then Muse Spark reads the item, price, quantity and store from the screenshot and compares them with what the agent claims. It catches price switches, wrong items and hidden text aimed at AI agents. The model can never approve a payment - it can only hand the decision to the owner, who sees the problem marked on the page with SAM 3.1.

Stores get proof too: a short-lived Ed25519-signed store pass they can verify in one call, which stops working the moment the owner pauses the agent. Payments run through PayPal's sandbox from a budget hold, so the agent never touches payment credentials. Developers connect agents over a REST API or an MCP server.

Sightpass is built on the spending engine from my earlier project, which the organisers confirmed was fine for the Indie track. New during the event: the page check, the SAM 3.1 evidence view, the signed store pass and verify API, the Muse Spark shopping agent, and moving every AI call to Meta's models. The README lists exactly what is new and what was reused.

## More from Meta Global AI Developer Hackathon

- [Amit S](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1556)
- [Ctrl Alt Muse](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1557)
- [pikapika](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1558)
- [RoleEdge](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1560)
- [Khassni'Nwssl(Moroccan Name) - Help Me Get There(in English)](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1561)
- [Master AI](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1562)

---

Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1559. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt