# API and AI agents

Everything the site does is available as plain HTTP, without an API key: USD quotes, Gerber pre-checks, and saving a quote with an e-mail. Prices are computed from the same tables as the site. Orders are not open yet; a saved quote is notified at launch with a 10% first-order discount.

## API

- Quote (no key): `GET https://pcb.express/api/quote?layers=4&width_mm=100&height_mm=100&qty=5`
- Gerber pre-check: `POST https://pcb.express/api/analyze` (multipart, field "file", one .zip up to 25 MB)
- Save a quote: `POST https://pcb.express/api/leads` with kind="quote" (see https://pcb.express/openapi.json)
- Agent guide: https://pcb.express/en/agents | llms.txt: https://pcb.express/llms.txt

API catalog (RFC 9727): https://pcb.express/.well-known/api-catalog | auth: https://pcb.express/auth.md