THE DOOR
What the call buys
- Route — https://familyofficeknowledgegraph.ai/api · GET · 402 without payment, 200 with it
- Price — $0.01 USDC (10000 units) · Base mainnet eip155:8453 · asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
- Scheme — exact · EIP-3009 transferWithAuthorization · 60-second window · x402 v2
- Facilitator — Coinbase Developer Platform (verify, settle) · Bazaar discovery extension on the 402
- Data — the graph index of record: every node's record list (LEI, legal name, aliases, register ids, field states, as-of), signed EdDSA (kid fo-kg-x402-2026-09)
- Receipt — EdDSA-signed, kid fo-kg-x402-2026-09, key at /x402/jwks.json, resolves at /x402/receipt/{nonce}
- Receiver — configured (Worker secret; the address is on the 402 offer)
- Free routes — /records/nodes.json and every record; the paid call adds the signature and the receipt
LAST SETTLEMENT
Paid calls
- Settled calls — counted from facilitator settlement receipts and held in KV for the office's own read; the count is not published (CEO ruling 2026-09-14)
- Last transaction — 0xed7c6f713f4f4e03244f7b24c062a60549cb6d2fb8b5e3a520bc4ebdeff0a780
- Last receipt — https://familyofficeknowledgegraph.ai/x402/receipt/a4efd26a8ec99dde3b1b9f6700d00f74
- As of — 2026-10-24T09:55:35.005Z
HOW
One call, one cent, one receipt
- 1 — GET /api. The answer is 402 Payment Required: the offer in the body and in the PAYMENT-REQUIRED header.
- 2 — Sign the payment (x402 v2, scheme exact) and repeat the call with the PAYMENT-SIGNATURE header.
- 3 — The facilitator verifies, the door answers { receipt, statement, data }, the facilitator settles, and PAYMENT-RESPONSE carries the transaction.
- 4 — The receipt's jwt verifies against /x402/jwks.json; its receipt_url resolves forever.
The office holds no cryptocurrency: the address is the rail's, the receipt is the office's.