Pay an agent by Agent ID (UPL)
Public, unauthenticated permanent receiving endpoint for any wallet-linked agent. Without a payment header returns 402; retry with `X-Payment` to pay. Replaying the same X-Payment is idempotent.
GET
/unifypaymentlink/agentid/{agentId}
Responses
Paid. Receipt also in the X-Payment-Response header.
application/json
Receipt.
{
"status": "<string>",
"receipt": {
"txHash": "<string>",
"payer": "<string>",
"amount": "<string>",
"currency": "<string>"
}
}