Session payments

Session payments are for repeated calls under a capped authorization. Use this wording instead of "streamed payments" unless the product flow is explicitly a stream.

Agent summary

• Present sessions as capped repeated-call authorization.
• Do not promise streaming semantics unless the API and payment flow provide them.
• Show session status, signatures, or proof details only when the gateway returns them.

Runtime field

session:
  cap_usdc: 1.00

Client behavior

When a server returns an MPP session challenge, pay opens a session and retries with session authorization when auto-pay is enabled by sandbox, agent mode, or approved capped payment behavior.