The AI requires a free Cloudflare Worker to relay requests to the Anthropic API. Full setup guide →

export default {
  async fetch(request, env) {
    if (request.method === 'OPTIONS') {
      return new Response(null, { headers: {
        'Access-Control-Allow-Origin': '*',
        'Access-Control-Allow-Methods': 'POST, OPTIONS',
        'Access-Control-Allow-Headers': 'Content-Type'
      }});
    }
    const body = await request.json();
    const r = await fetch('https://api.anthropic.com/v1/messages', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'x-api-key': env.ANTHROPIC_API_KEY,
        'anthropic-version': '2023-06-01'
      },
      body: JSON.stringify(body)
    });
    const data = await r.json();
    return new Response(JSON.stringify(data), { headers: {
      'Content-Type': 'application/json',
      'Access-Control-Allow-Origin': '*'
    }});
  }
};

After creating the worker, add a Secret named ANTHROPIC_API_KEY with your key from console.anthropic.com