tools-only Retell AI Install & Auth
Overview
Set up Retell AI SDK/CLI and configure authentication credentials.
Prerequisites
- Node.js 18+ or Python 3.10+
- Package manager (npm, pnpm, or pip)
- Retell AI account with API access
- API key from Retell AI dashboard
Instructions
Step 1: Install SDK
# Node.js
npm install @retellai/sdk
# Python
pip install retellai
Step 2: Configure Authentication
# Set environment variable
export RETELLAI_API_KEY="your-api-key"
# Or create .env file
echo 'RETELLAI_API_KEY=your-api-key' >> .env
Step 3: Verify Connection
// Test connection code here
Output
- Installed SDK package in node_modules or site-packages
- Environment variable or .env file with API key
- Successful connection verification output
Error Handling
| Error | Cause | Solution |
|---|---|---|
| Invalid API Key | Incorrect or expired key | Verify key in Retell AI dashboard |
| Rate Limited | Exceeded quota | Check quota at https://docs.retellai.com |
| Network Error | Firewall blocking | Ensure outbound HTTPS allowed |
| Module Not Found | Installation failed | Run npm install or pip install again |
Examples
TypeScript Setup
import { RetellAIClient } from '@retellai/sdk';
const client = new RetellAIClient({
apiKey: process.env.RETELLAI_API_KEY,
});
Python Setup
from retellai import RetellAIClient
client = RetellAIClient(
api_key=os.environ.get('RETELLAI_API_KEY')
)
Resources
Next Steps
After successful auth, proceed to retellai-hello-world for your first API call.