A TypeScript integration that connects AG-UI agents with remote services that expose the [A2A protocol](https://a2a.dev/). It converts AG-UI conversations into A2A payloads, forwards them through the official A2A SDK, and replays the responses back into A

This starter kit demonstrates how to set up a middleware server that can be used to proxy events from the agent to the frontend.

Implementation of the AG-UI protocol for Agno.

Client SDK for connecting to **Agent-User Interaction (AG-UI) Protocol** servers.

TypeScript definitions & runtime schemas for the **Agent-User Interaction (AG-UI) Protocol**.

Implementation of the AG-UI protocol for CrewAI.

Event encoding utilities for the **Agent-User Interaction (AG-UI) Protocol**.

Implementation of the AG-UI protocol for LangChain.

Implementation of the AG-UI protocol for LangGraph.

Implementation of the AG-UI protocol for LlamaIndex.

Implementation of the AG-UI protocol for Mastra.

MCP Apps middleware for AG-UI that enables UI-enabled tools from MCP (Model Context Protocol) servers.

Protocol Buffer encoding/decoding for **Agent-User Interaction (AG-UI) Protocol** events.

Implementation of the AG-UI protocol for [Pydantic AI](https://ai.pydantic.dev/).

Implementation of the AG-UI protocol for Spring AI.

A2UI Renderer for CopilotKit - render A2UI surfaces in React applications

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