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@assistant-ui/react-a2a

A2A (Agent-to-Agent) v1.0 protocol integration for @assistant-ui/react. Built-in HTTP client with SSE streaming, agent-card discovery, multi-tenancy, and structured error handling.

Installation

npm install @assistant-ui/react @assistant-ui/react-a2a

Usage

import { AssistantRuntimeProvider } from "@assistant-ui/react";
import { useA2ARuntime } from "@assistant-ui/react-a2a";
import { Thread } from "@/components/assistant-ui/thread";

export function App() {
  const runtime = useA2ARuntime({ baseUrl: "http://localhost:9999" });

  return (
    <AssistantRuntimeProvider runtime={runtime}>
      <Thread />
    </AssistantRuntimeProvider>
  );
}

Supports all 9 A2A task states (including input_required and auth_required), artifact streaming, push-notification config, extension negotiation, and streaming/non-streaming auto-fallback.

See also

  • @assistant-ui/react-ag-ui for the AG-UI protocol.
  • @assistant-ui/react-langgraph for LangGraph agents.

Full reference at assistant-ui.com/docs/runtimes/a2a.