Position relative to x402
x402 is a machine-payment protocol. A client hits a paid resource, receives HTTP 402 with payment requirements, settles, and retries with proof. Fiscal402 is not that protocol.
Fiscal402 reads settlement evidence after the transfer exists — typically from an x402 v2 exact PAYMENT-RESPONSE or from POST /settlements. Scheme exact means one transfer of amount of asset to payTo.
What Fiscal402 will not do on this rail
- Issue the HTTP 402 challenge.
- Choose a facilitator.
- Broadcast or confirm the payment itself, except optional later chain checks.
- Split the exact transfer toward a Fiscal402 wallet.
Networks and asset
Ingest accepts a CAIP-2 network string and an asset identifier. Current FX and, when enabled, on-chain USDC Transfer checks cover eip155:1 (Ethereum) and eip155:8453 / eip155:84532 (Base). Other rails are not live.