Retell AI Architecture Variants
Overview
Implementation patterns for Retell AI architecture variants — voice agent and telephony platform.
Prerequisites
- Completed
retellai-install-auth setup
Instructions
Step 1: SDK Pattern
import Retell from 'retell-sdk';
const retell = new Retell({ apiKey: process.env.RETELL_API_KEY! });
const agents = await retell.agent.list();
console.log(`Agents: ${agents.length}`);
Output
- Retell AI integration for architecture variants
Error Handling
| Error |
Cause |
Solution |
| 401 Unauthorized |
Invalid API key |
Check RETELL_API_KEY |
| 429 Rate Limited |
Too many requests |
Implement backoff |
| 400 Bad Request |
Invalid parameters |
Check API documentation |
Examples
Choose a queue-backed architecture for bursty inbound calls
For a campaign that creates short spikes, keep the public number attached to a
stable routing layer and place CRM enrichment behind an asynchronous queue.
Start with a preview agent that records only synthetic test calls, set a clear
timeout for the enrichment request, and configure a human-transfer fallback.
Measure latency and transfer rate during the canary before selecting the
variant for production traffic.
Resources
Next Steps
See related Retell AI skills for more workflows.