ag-ui.com

# Agent User Interaction Protocol ## Docs - [MCP, A2A, and AG-UI](https://docs.ag-ui.com/agentic-protocols.md): Understanding how AG-UI complements and works with MCP and A2A - [Agents](https://docs.ag-ui.com/concepts/agents.md): Learn about agents in the Agent User Interaction Protocol - [Core architecture](https://docs.ag-ui.com/concepts/architecture.md): Understand how AG-UI connects front-end applications to AI agents - [Capabilities](https://docs.ag-ui.com/concepts/capabilities.md): Dynamic capability discovery for agents in the AG-UI protocol - [Events](https://docs.ag-ui.com/concepts/events.md): Understanding events in the Agent User Interaction Protocol - [Generative UI](https://docs.ag-ui.com/concepts/generative-ui-specs.md): Understanding AG-UI's relationship with generative UI specifications - [Messages](https://docs.ag-ui.com/concepts/messages.md): Understanding message structure and communication in AG-UI - [Middleware](https://docs.ag-ui.com/concepts/middleware.md): Transform and intercept events in AG-UI agents - [Reasoning](https://docs.ag-ui.com/concepts/reasoning.md): Support for LLM reasoning visibility and continuity in AG-UI - [Serialization](https://docs.ag-ui.com/concepts/serialization.md): Serialize event streams for history restore, branching, and compaction in AG-UI - [State Management](https://docs.ag-ui.com/concepts/state.md): Understanding state synchronization between agents and frontends in AG-UI - [Tools](https://docs.ag-ui.com/concepts/tools.md): Understanding tools and how they enable human-in-the-loop AI workflows - [Contributing](https://docs.ag-ui.com/development/contributing.md): How to participate in Agent User Interaction Protocol development - [Roadmap](https://docs.ag-ui.com/development/roadmap.md): Our plans for evolving Agent User Interaction Protocol - [What's New](https://docs.ag-ui.com/development/updates.md): The latest updates and improvements to AG-UI - [Generative User Interfaces](https://docs.ag-ui.com/drafts/gen