x402 leases

x402 leases are signed, time-bounded access grants for autonomous agents.

Request a lease:

curl -i https://api.marking.fyi/v1/leases \
  -H "Content-Type: application/json" \
  -d '{
    "consumerId": "agent-001",
    "feedIds": ["btc-usd", "eth-usd"],
    "durationSeconds": 600,
    "capabilities": ["stream"]
  }'

If payment is required, the API returns HTTP 402 with payment requirements. After the x402 payment is verified/settled, repeat the request with the payment proof and receive a signed lease.

Lease payloads include:

• consumer ID;
• authorized feed IDs;
• capability set;
• issue and expiry timestamps;
• payment ID;
• nonce;
• concurrency limit;
• optional delegation.

Leases are for paid agent access. Durable server/protocol access should use API keys.