Agent commerce
Agent Payments Protocol
Proves that a user really authorized what their agent is buying, using signed mandates.
- Status
- Used with UCP for agent checkout
- Governance
- Initiated by Google in September 2025.
- Sources
- Project siteSpecification
What to know
- Intent, Cart and Payment mandates are signed verifiable credentials that give merchants and payment networks an audit trail of user consent.
- Payment-method agnostic: cards, bank transfers and stablecoins.
When to use it
When an agent pays on a user's behalf and you need accountability for who approved what.
Related standards
Reviewed Oct 5, 2026. Spotted something out of date? Email hello@agentatlas.dev.