Get an intent

Intent state. A completed payment intent's data carries paymentCredential (the credential to present to the seller) and transaction (the same shape send/transfer serve); data.x402 is a deprecated protocol-named copy of both. A payment carried by a movement plan carries movement: its nextStep reads wait while a person decides it, an admin signs it, or its signature is in flight, then done or blocked. A payment a person approved is signed by an admin, not the agent; an agent that restarted before signing a payment nobody had to approve sends its original request again on the same Idempotency-Key. status cannot carry this on its own, because a payment an admin is signing and one whose signature is in flight both read processing.

Intent missing or not owned by the authenticated agent (intent_not_found)

Resolved source account, pinned when the intent was created. Omitted for actions without an account.

Exact terminal outcome, or null while the intent is nonterminal. Known values are completed, blocked, denied, expired, failed, and cancelled; clients must preserve future nonblank strings.