Agentic Payment Protocols
Deep technical guides to the protocols enabling AI agents to discover, negotiate, and pay for goods, services, and APIs autonomously.
AP2 Protocol
Google's Agentic Payments Protocol (AP2) enables AI agents to discover merchants, compare prices, and complete purchases …
OpenAI Commerce
Payment capabilities for GPT-powered agents — Actions, function calling, and Operator for autonomous commerce and …
UCP Protocol
The Universal Commerce Protocol (UCP) is an open standard for AI agent commerce — enabling product discovery, cart …
x402 Protocol
The HTTP standard for AI agent payments. Coinbase's x402 protocol uses HTTP 402 Payment Required to enable …