@ag-ui/client provides agent implementations that handle the full lifecycle of AG-UI communication: connecting to servers, processing streaming events, managing state mutations, and providing reactive subscriber hooks.

Installation

npm install @ag-ui/client
pnpm add @ag-ui/client
yarn add @ag-ui/client

Features

🔗 HTTP connectivity – HttpAgent for direct server connections with SSE/protobuf support
🏗️ Custom agents – AbstractAgent base class for building your own transport layer
📡 Event streaming – Full AG-UI event processing with validation and transformation
🔄 State management – Automatic message/state tracking with reactive updates
🪝 Subscriber system – Middleware-style hooks for logging, persistence, and custom logic

Quick example

import { HttpAgent } from "@ag-ui/client";

const agent = new HttpAgent({
  url: "https://api.example.com/agent",
  headers: { Authorization: "Bearer token" },
});

const result = await agent.runAgent({
  messages: [{ role: "user", content: "Hello!" }],
});

console.log(result.newMessages);

Documentation

Concepts & architecture: docs/concepts
Full API reference: docs/sdk/js/client

Contributing

Bug reports and pull requests are welcome! Please read our contributing guide first.

License

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Package last updated on 14 Oct 2025

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Install

@ag-ui/client