Agentic Payment Protocols
Deep technical guides to the protocols enabling AI agents to discover, negotiate, and pay for goods, services, and APIs autonomously.
ACP: Agentic Commerce Protocol
ACP explained: how OpenAI and Stripe's Agentic Commerce Protocol handles agent checkout, Shared Payment Tokens, what …
AP2 Protocol
AP2 explained: intent and cart mandates, verifiable credentials, its move to the FIDO Alliance and how it pairs with …
MPP Protocol
MPP explained: Stripe and Tempo's Machine Payments Protocol for agent payments, with one-off charges, metered sessions, …
UCP Protocol
The Universal Commerce Protocol (UCP) is an open standard for AI agent commerce - enabling product discovery, cart …
x402 Protocol
x402 explained: the HTTP 402 payment flow, facilitators, supported networks, Linux Foundation governance and the …