# Kiln Sift

> Turn any public webpage into compact Markdown, metadata, canonical links, and a stable content fingerprint.

## Agent API

- Status: https://sift.kiln.casa/v1/status
- Free example: https://sift.kiln.casa/v1/demo
- Paid extraction: GET https://sift.kiln.casa/v1/extract?url={URL}
- OpenAPI: https://sift.kiln.casa/openapi.json

Price: $0.01 USDC per extraction via x402 v2 on eip155:8453.

The paid response contains clean Markdown, page metadata, normalized links, JSON-LD, token estimates, and a SHA-256 fingerprint. No API key or account is required. On HTTP 402, follow the PAYMENT-REQUIRED header and retry with PAYMENT-SIGNATURE.