The Regent facilitator is the service access point for x402 payments. It:
Verifies paid requests (POST /verify)
Settles payments on-chain (POST /settle)
Registers agents on-chain via ERC-8004 + EIP-7702 (POST /register)
Optionally generates feedbackAuth after settlement to enable authenticated on-chain reputation feedback
Running a Regent-owned facilitator is critical because it’s where x402 payments become on-chain transactions (usable for accounting/attribution) and where the payment flow is extended with Regent identity + reputation primitives on Base.
What’s implemented today
The current implementation (monorepo/facilitator/index.ts) supports:
x402 v1: legacy verify/settle via @x402/legacy
x402 v2: verify/settle via @x402/core/facilitator with the Exact EVM scheme
ERC-8004 agent registration using an EIP-7702 authorizationList + a delegation contract
A feedback extension hook (v2) that generates and stores a per-client feedbackAuth in memory after settlement
A discovery extension plus /discover + /catalog endpoints for crawling discovery-enabled x402 resources
