Retell AI
Voice agent platform for automating inbound and outbound phone calls like booking, support and collections
Retell AI is a platform for building voice agents that automate phone calls. Its agents answer and place calls for a business, acting as receptionists, booking appointments, qualifying leads, handling customer service, running surveys and collecting debts.
Key features:
- No-code studio with a drag-and-drop canvas for call flows.
- Call transfers, DTMF, SMS, functions and custom logic.
- Knowledge base answers and IVR navigation.
- Simulation testing that turns real calls into regression tests.
- Deployment for inbound calls, outbound campaigns, web and SMS.
- Post-call analytics, AI quality assurance, PII removal and safety guardrails.
Retell integrates with Twilio, Vonage, HubSpot and n8n and supports models from several providers. Pricing is pay as you go with $10 in free credits, $0.07 to $0.31 per minute for voice agents and 20 free concurrent calls. The Enterprise plan adds volume pricing, custom SSO, RBAC and 24/7 support.