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Retell AI Hello World

retellai-hello-world

Create a minimal working Retell AI example. Use when starting a new Retell AI integration, testing your setup, or learning basic Retell AI API patterns. Trigger with phrases like "retellai hello world", "retellai example", "retellai quick start", "simple retellai code".

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SKILL.md

Full skill instructions

Retell AI Hello World

Overview

Minimal working example demonstrating core Retell AI functionality.

Prerequisites

  • Completed retellai-install-auth setup
  • Valid API credentials configured
  • Development environment ready

Instructions

Step 1: Create Entry File

Create a new file for your hello world example.

Step 2: Import and Initialize Client

import { RetellAIClient } from '@retellai/​sdk';

const client = new RetellAIClient({
  apiKey: process.env.RETELLAI_API_KEY,
});

Step 3: Make Your First API Call

async function main() {
  // Your first API call here
}

main().catch(console.error);

Output

  • Working code file with Retell AI client initialization
  • Successful API response confirming connection
  • Console output showing:
Success! Your Retell AI connection is working.

Error Handling

ErrorCauseSolution
Import ErrorSDK not installedVerify with npm list or pip show
Auth ErrorInvalid credentialsCheck environment variable is set
TimeoutNetwork issuesIncrease timeout or check connectivity
Rate LimitToo many requestsWait and retry with exponential backoff

Examples

TypeScript Example

import { RetellAIClient } from '@retellai/​sdk';

const client = new RetellAIClient({
  apiKey: process.env.RETELLAI_API_KEY,
});

async function main() {
  // Your first API call here
}

main().catch(console.error);

Python Example

from retellai import RetellAIClient

client = RetellAIClient()

# Your first API call here

Resources

Next Steps

Proceed to retellai-local-dev-loop for development workflow setup.