Facilitator

Pay A facilitator in the x402 protocol is an optional third-party service that verifies and settles blockchain payments on behalf of a resource server, so the server does not need its own blockchain connectivity or payment-verification logic. When a client retries a request with a signed payment payload, the server can either check and submit that payment itself or hand it to a facilitator's /verify and /settle endpoints, which check the payload against the server's declared requirements, broadcast the transaction, wait for confirmation, and return a result the server uses to decide whether to fulfil the request. A facilitator never holds client funds or acts as a custodian; it only executes and reports on signed, client-authorised transactions. x402.org runs a public facilitator intended for development and testnet use, and multiple independent facilitators run in production across several blockchain networks; a server may also "self-facilitate" by implementing the same logic in-process. Used by: x402.