tools-only Retell AI Hello World
Overview
Minimal working example demonstrating core Retell AI functionality.
Prerequisites
- Completed
retellai-install-authsetup - 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
| Error | Cause | Solution |
|---|---|---|
| Import Error | SDK not installed | Verify with npm list or pip show |
| Auth Error | Invalid credentials | Check environment variable is set |
| Timeout | Network issues | Increase timeout or check connectivity |
| Rate Limit | Too many requests | Wait 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.