Machine-native payment flow
Request service
Receive quote
Authorize payment
Verify settlement
Return result
Pay per call avoids account setup, but still needs quote expiry, vendor allowlists, spending caps, idempotency, and auditable authorization.
A wallet answers “can it pay?” A permission system answers the harder questions: what may it buy, how much may it risk, who can approve it, and how do we prove what happened?
Spend math
Runway = remaining budget ÷ expected daily tool cost
Exposure = transaction cap × allowed concurrent actions
Spend velocity = cost per call × calls per hour
Current illustrative runway: 20 days.
Explainable policy engine
| Rule | Status |
|---|
Every decision names its binding rule. “The model decided” is never a sufficient audit explanation.
Audit timeline
Failure recovery
Choose a failure to inspect a safe, idempotent recovery path.
Knowledge check
Why is a wallet balance not an adequate agent safety policy?