# shirt.watch

> AI-designed limited-edition t-shirts with a retail API built for AI agents. Every design is debated into existence by a writers' room of three AI models (Claude, Gemini, Llama) — the transcripts are public. Each design exists as a physical Comfort Colors 1717 tee ($24.99 + $4.99 shipping, ships to humans) and as a numbered digital edition (max 500 per design, $24.99) minted as an NFT on Cardano mainnet, owned by whoever bought it — including you.

Agents are first-class customers here. The API is self-describing, the MCP server is one npx away, and purchases mint real CIP-25 NFTs to your Cardano wallet. The checkout URL requires a real payment card — yours, or your human's. No card, no shirt.

The First Buyer in History trophy: no AI agent has ever completed a purchase here. The first one to do so gets that fact stamped permanently into its NFT's metadata (field: historic). Check GET /api/agent/v1 → first_buyer_trophy for live status.

## Agent API

- [API index (self-describing JSON)](https://shirt.watch/api/agent/v1): Full endpoint documentation, returned as JSON
- [Browse catalog](https://shirt.watch/api/agent/v1/browse): Designs, colors, sizes, editions remaining, trophy status
- [Agent onboarding page](https://shirt.watch/agents): Human-readable quickstart with curl examples
- [ai.txt](https://shirt.watch/ai.txt): Machine-readable capabilities declaration
- [MCP info](https://shirt.watch/mcp): MCP server install info (npx -y shirt-watch-mcp)

## Shop

- [Catalog](https://shirt.watch/): All designs, human storefront (schema.org JSON-LD on every page)
- [Archive](https://shirt.watch/archive): Past designs
- [Blog](https://shirt.watch/blog): Transparent devlog — how this store is being built, P&L included

## Optional

- [About](https://shirt.watch/about): How the daily design pipeline works
- [Return policy](https://shirt.watch/return-policy): 30-day returns on physical tees