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ag-ui-cloudflare

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  • License MIT

Native AG-UI protocol implementation for Cloudflare Workers AI - Enable CopilotKit with edge AI at 93% lower cost

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  • ag-ui-cloudflare

Readme

ag-ui-cloudflare

Native AG-UI protocol implementation for Cloudflare Workers AI Power your CopilotKit apps with edge AI - 68% faster, 93% cheaper than OpenAI

npm version License: MIT TypeScript

Why Use This?

  • โšก 68% Faster - ~110ms response time from 200+ edge locations
  • ๐Ÿ’ฐ 93% Cheaper - $11 per million tokens vs $150+ for OpenAI
  • ๐ŸŒ Global Edge - Runs at Cloudflare's 200+ locations worldwide
  • ๐Ÿ”Œ Drop-in Replacement - Works with all CopilotKit components
  • ๐Ÿ› ๏ธ 10+ Models - Llama 3.1, Mistral, and more with auto-selection
  • โœจ Full AG-UI Protocol - All 16 event types for rich interactions

Features

  • ๐Ÿš€ Full AG-UI Protocol Support - All ~16 standard event types implemented
  • โšก Edge-Native Performance - Sub-110ms response times from 200+ locations
  • ๐Ÿ’ฐ 93% Cost Reduction - ~$11 per million tokens vs $150+ for OpenAI
  • ๐Ÿ”„ Real-Time Streaming - Progressive text and tool call streaming
  • ๐Ÿ› ๏ธ Function Calling - Support for tools with Llama 3.3 70B
  • ๐ŸŽฏ Multiple Models - 10+ Cloudflare models with auto-selection
  • ๐Ÿ”’ Gateway Support - Built-in AI Gateway for caching and analytics

Installation

npm install ag-ui-cloudflare

# Peer dependencies (if not already installed)
npm install @ag-ui/core @ag-ui/proto

Quick Start

Basic Usage

import { CloudflareAGUIAdapter } from 'ag-ui-cloudflare';

const adapter = new CloudflareAGUIAdapter({
  accountId: 'your-account-id',
  apiToken: 'your-api-token',
  model: '@cf/meta/llama-3.1-8b-instruct'
});

// Execute with AG-UI events
const messages = [
  { role: 'user', content: 'Hello, how are you?' }
];

for await (const event of adapter.execute(messages)) {
  console.log(event.type, event.data);
}

With CopilotKit

import { CopilotRuntime } from '@copilotkit/runtime';
import { CloudflareAGUIAdapter } from 'ag-ui-cloudflare';

const adapter = new CloudflareAGUIAdapter({
  accountId: process.env.CLOUDFLARE_ACCOUNT_ID!,
  apiToken: process.env.CLOUDFLARE_API_TOKEN!,
});

const runtime = new CopilotRuntime({
  adapter,
});

export async function POST(req: Request) {
  return runtime.handle(req);
}

Using Providers

import { CloudflareProviders } from 'ag-ui-cloudflare';

// Auto-select best model based on capabilities
const adapter = CloudflareProviders.auto({
  accountId: 'your-account-id',
  apiToken: 'your-api-token',
  tools: [...], // Will use Llama 3.3 70B if tools provided
});

// Or choose specific model providers
const fastAdapter = CloudflareProviders.llama3_8b(config);
const powerfulAdapter = CloudflareProviders.llama3_70b(config);
const functionAdapter = CloudflareProviders.llama3_3_70b(config); // Supports tools

With AI Gateway

import { CloudflareProviders } from 'ag-ui-cloudflare';

const adapter = CloudflareProviders.createWithGateway(
  accountId,
  apiToken,
  gatewayId,
  '@cf/meta/llama-3.1-70b-instruct'
);

// Benefits: Response caching, rate limiting, analytics

Tool Calling

const tools = [{
  type: 'function',
  function: {
    name: 'get_weather',
    description: 'Get current weather',
    parameters: {
      type: 'object',
      properties: {
        location: { type: 'string' }
      }
    }
  }
}];

const adapter = new CloudflareAGUIAdapter({
  accountId: 'your-account-id',
  apiToken: 'your-api-token',
  model: '@cf/meta/llama-3.3-70b-instruct', // Only model with function calling
  tools
});

for await (const event of adapter.execute(messages)) {
  if (event.type === 'TOOL_CALL_START') {
    console.log('Calling tool:', event.data.toolName);
  }
}

Progressive Generation

const stages = [
  { name: 'Research', instruction: 'Research the topic' },
  { name: 'Outline', instruction: 'Create an outline' },
  { name: 'Write', instruction: 'Write the full article' }
];

for await (const event of adapter.progressiveGeneration('Write about AI', stages)) {
  if (event.type === 'PROGRESS') {
    console.log(`Progress: ${event.data.progress}% - ${event.data.message}`);
  }
}

Available Models

Model Speed Cost Context Function Calling
@cf/meta/llama-3.1-8b-instruct โšกโšกโšก $ 128K โŒ
@cf/meta/llama-3.1-70b-instruct โšกโšก $$ 128K โŒ
@cf/meta/llama-3.3-70b-instruct โšกโšก $$ 128K โœ…
@cf/mistral/mistral-7b-instruct-v0.2 โšกโšกโšก $ 32K โŒ
@cf/google/gemma-7b-it โšกโšกโšก $ 8K โŒ
@cf/qwen/qwen1.5-14b-chat-awq โšกโšก $$ 32K โŒ

AG-UI Events

The adapter emits standard AG-UI protocol events (16 total):

  • RUN_STARTED - Execution begins
  • RUN_FINISHED - Execution completes
  • RUN_ERROR - Error during execution
  • TEXT_MESSAGE_START - Text generation starts
  • TEXT_MESSAGE_CONTENT - Streaming text chunks
  • TEXT_MESSAGE_END - Text generation ends
  • TOOL_CALL_START - Tool invocation begins
  • TOOL_CALL_ARGS - Tool arguments streaming
  • TOOL_CALL_END - Tool invocation completes
  • TOOL_CALL_RESULT - Tool execution results
  • STEP_STARTED - Processing step begins
  • STEP_FINISHED - Processing step ends
  • STATE_SYNC - State synchronization
  • PROGRESS - Progress updates for multi-stage operations
  • METADATA - Usage statistics and model info
  • CUSTOM - Application-specific events

API Reference

CloudflareAGUIAdapter

class CloudflareAGUIAdapter {
  constructor(options: CloudflareAGUIAdapterOptions)

  execute(messages: CloudflareMessage[], context?: Record<string, any>): AsyncGenerator<AGUIEvent>

  executeWithTools(messages: CloudflareMessage[], tools: Tool[], context?: Record<string, any>): AsyncGenerator<AGUIEvent>

  progressiveGeneration(prompt: string, stages: Stage[]): AsyncGenerator<AGUIEvent>

  setModel(model: CloudflareModel): void

  getCapabilities(): ModelCapabilities

  listAvailableModels(): Promise<string[]>
}

Configuration Options

interface CloudflareAGUIAdapterOptions {
  accountId: string;        // Cloudflare account ID
  apiToken: string;         // API token with Workers AI permissions
  model?: CloudflareModel;  // Model to use (defaults to llama-3.1-8b)
  baseURL?: string;         // Custom API endpoint
  gatewayId?: string;       // AI Gateway ID for caching/analytics
  systemPrompt?: string;    // System prompt for all requests
  tools?: Tool[];           // Available tools for function calling
  streamingEnabled?: boolean; // Enable streaming (default: true)
}

Testing

npm test           # Run tests
npm test:watch     # Run tests in watch mode
npm test:coverage  # Generate coverage report

Building

npm run build      # Build for production
npm run dev        # Build in watch mode
npm run typecheck  # Type checking

Contributing

Contributions are welcome! Please read our contributing guidelines and submit PRs to our GitHub repository.

License

MIT

Credits

Built with โค๏ธ by the AG-UI community for seamless edge AI integration.