# AI Protocols

> The open standards making AI agents interoperable: the Model Context Protocol (MCP) and its server registries like Composio and Smithery, agent-to-agent communication protocols like A2A, and agent-facing conventions like AGENTS.md.

9 tools in 2 subcategories. Web page: https://ailandscape.org/category/ai-protocols · Each tool also has a markdown version at /tool/{slug}.md

## MCP Servers & Registries

- [Composio](https://ailandscape.org/tool/composio): Managed toolset and integrations platform for AI agents via MCP
- [Glama](https://ailandscape.org/tool/glama): Directory and gateway for MCP servers
- [MCP](https://ailandscape.org/tool/mcp): Model Context Protocol by Anthropic for tool and data access
- [Smithery](https://ailandscape.org/tool/smithery): Registry for discovering and deploying MCP servers

## 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
- [AP2](https://ailandscape.org/tool/ap2): Google Cloud's open-source Agent Payments Protocol for AI agent transactions

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