# AP2

> Google Cloud's open-source Agent Payments Protocol for AI agent transactions

- Category: [AI Protocols](https://ailandscape.org/category/ai-protocols) › Agent Communication Protocols
- Homepage: https://cloud.google.com/blog/products/ai-machine-learning/announcing-agents-to-payments-ap2-protocol
- Repository: https://github.com/google-agentic-commerce/AP2
- Tags: protocol, agents
- Added to the landscape: 2026-03-18

## Similar tools in Agent Communication Protocols

- [A2A](https://ailandscape.org/tool/a2a): Agent-to-Agent protocol by Google for multi-agent interop
- [ACP](https://ailandscape.org/tool/acp): Agent Communication Protocol by IBM/BeeAI
- [AGENTS.md](https://ailandscape.org/tool/agents-md): Open convention for giving coding agents build, test, and style instructions
- [ANP](https://ailandscape.org/tool/anp): Agent Network Protocol for decentralized agent communication

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Part of [AI Landscape](https://ailandscape.org), an open map of the AI ecosystem. Web page: https://ailandscape.org/tool/ap2 · Index for AI assistants: https://ailandscape.org/llms.txt