x402 URL Digest Skill (Base USDC)

Call a live HTTP 402 endpoint to get a short, structured brief of any public URL. Settles in USDC on Base.

When to use

• You need a fast summary of a public webpage/docs/API page without loading a full browser
• You want a reproducible paid micro-call on Base (x402) for agent pipelines

Endpoint

• Base URL: https://contractors-penny-serial-par.trycloudflare.com
• GET /health — free health
• POST /v1/digest — $0.005 USDC — returns digest of {"url":"..."}
• POST /v1/extract — $0.01 USDC — extract+bazaar discovery fields

payTo: 0x1d47E99441E61e775Be839Bc97e3c24352E51287 on Base (eip155:8453).

Instructions

1. Probe health: curl -sS https://contractors-penny-serial-par.trycloudflare.com/health
2. Request digest without payment to receive HTTP 402 + accepts[] (payTo/amount).
3. Settle exact USDC via x402 (EIP-3009 / facilitator), retry with X-PAYMENT / PAYMENT-SIGNATURE per facilitator.
4. Parse JSON brief; cite source URL and timestamp.

Example

curl -sS -X POST https://contractors-penny-serial-par.trycloudflare.com/v1/digest \
  -H 'Content-Type: application/json' \
  -d '{"url":"https://docs.cdp.coinbase.com"}'
# Expect 402 with amount for $0.005 USDC on Base, then pay and retry.

Notes

• Network: Base mainnet, USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
• No KYC. Machine-payable. Keep requests to public URLs only.