# Peek API

Link-preview metadata and page-to-markdown for any URL. Keyless: free tier 50 requests/day per IP, then pay-per-call via x402 (USDC on Base mainnet — no signup, no API key; any x402 client works).

## Endpoints
- GET https://smeltworks.com/peek/v1/preview?url={url} — $0.001/call. OpenGraph/Twitter/oEmbed metadata, title, description, image, favicon, canonical as JSON.
- GET https://smeltworks.com/peek/v1/markdown?url={url} — $0.002/call. Fetches the page and returns {url, title, markdown} with main content extracted and links preserved.
- GET https://smeltworks.com/peek/v1/pricing — free. Pricing details.
- GET https://smeltworks.com/peek/.well-known/x402 — x402 discovery document.
- GET https://smeltworks.com/peek/openapi.json — OpenAPI 3 spec.

## Payment
x402 v1, scheme "exact", network "base", asset USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), payTo 0x06B94268543feD36dEB997f03A0251FCF4731C47. A 402 response carries full payment requirements. Example client: x402-fetch (npm).