retellai-hello-world

# Retell AI Hello World ## Overview Create your first Retell AI voice agent and make a test phone call. ## Prerequisites - Completed `retellai-install-auth` - A phone number registered in Retell AI Dashboard (or use web call for testing) ## Instructions ### Step 1: Create an LLM Configuration ```typescript import Retell from 'retell-sdk'; const retell = new Retell({ apiKey: process.env.RETELL_API_KEY! }); // Create LLM configuration (what the agent says) const llm = await retell.llm.create({ model: 'gpt-4o', general_prompt: `You are a friendly receptionist for Acme Corp. - Greet callers warmly - Ask how you can help - Take messages if needed - Be concise and professional`, }); console.log(`LLM created: ${llm.llm_id}`); ``` ### Step 2: Create a Voice Agent ```typescript const agent = await retell.agent.create({ response_engine: { type: 'retell-llm', llm_id: llm.llm_id, }, voice_id: '11labs-Adrian', // Choose from available voices agent_name: 'Acme Receptionist', }); console.log(`Agent created: ${agent.agent_id}`); ``` ### Step 3: Make a Test Phone Call ```typescript // Outbound call (requires a registered phone number) const call = await retell.call.createPhoneCall({ from_number: '+14155551234', // Your Retell number to_number: '+14155555678', // Destination override_agent_id: agent.agent_id, }); console.log(`Call initiated: ${call.call_id}`); ``` ### Step 4: Or Test with Web Call ```typescript // Web call (no phone number...