Glossary
AP2
AP2 is defined here as follows. Open payment extension for A2A and the Universal Commerce Protocol. It records checkout and payment authorization as signed mandates. Public samples exist while FIDO continues the standards work. The directory source for this term is AP2 protocol documentation.
Last verified 2026-10-17
Sources
Listings
Directory listings whose sources describe this mechanism.
| Name | Status | Category | Open source | Mechanism |
|---|---|---|---|---|
| AP2 | Beta | Payment rails | Yes | Open payment extension for A2A and UCP that records checkout and payment authorization as signed mandates. Public samples exist while FIDO continues the standards work. mandates, cards, stablecoins |
Questions
- What is AP2?
- Open payment extension for A2A and the Universal Commerce Protocol. It records checkout and payment authorization as signed mandates. Public samples exist while FIDO continues the standards work.
- Which listings use AP2?
- AP2.
- When was AP2 last verified?
- Last verified 2026-10-17.