Amex developer kit for agent-initiated card payments with cardholder-scoped authorization
OpenAPIACE
API keyper-transaction
A directory of services AI agents can actually use — APIs, tools and merchants with machine-readable interfaces and agent payment protocols. Badges are probe-backed, never self-asserted.
Amex developer kit for agent-initiated card payments with cardholder-scoped authorization
Same query as JSON: /api/v1/services?protocol=ace&auth_method=api-key