Transport — Agent wire protocols # AG-UI Wire formats between agents, hosts, and tool servers. CopilotKit's event protocol between an agent backend and a frontend — streaming state, tool calls, and human-in-the-loop checkpoints. [ag-ui.com ↗](https://ag-ui.com/) MATRIX ## Agents on this wire (0) No cataloged systems verified on AG-UI yet — the protocol is tracked but adoption is still emerging. KIND ## More agent wire protocols - [A2A (Agent2Agent)](https://www.agentlist.io/transports/a2a) - [ACP](https://www.agentlist.io/transports/acp) - [AGNTCY / SLIM](https://www.agentlist.io/transports/agntcy-slim) - [AITP](https://www.agentlist.io/transports/aitp) - [ANP (Agent Network Protocol)](https://www.agentlist.io/transports/anp) - [MCP (Model Context Protocol)](https://www.agentlist.io/transports/mcp) --- Source: [AG-UI — agent transport | agentlist.io](https://www.agentlist.io/transports/ag-ui). This is the public page rendered as Markdown; interactive controls require the website.