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Retell AI

verifiedPaidAgentAPIretellai.com

Developer platform for building and deploying LLM-based AI voice agents that handle phone calls for sales and support teams.

What it does

Retell AI is a voice-agent platform that lets teams build, deploy and manage LLM-powered AI agents that conduct natural, human-like phone conversations. It supports call transfers, appointment booking, IVR navigation, batch calling and knowledge-base-backed responses, with post-call analytics and quality assurance. It targets industries like healthcare, insurance, logistics and financial services for use cases such as receptionists, dispatch and lead qualification.

Core features

LLM-based conversational voice agents for inbound and outbound calls
Call transfer, appointment booking and knowledge-base lookups
Batch calling with branded caller ID and verified numbers
IVR navigation for complex phone trees
Post-call analytics and automated quality assurance
Integrations with Twilio, Vonage, HubSpot, Go High Level and n8n

Best for

→Automating inbound customer support and receptionist calls
→Outbound sales lead qualification at scale
→AI dispatch services for logistics and home services
→Debt collection and appointment-setting call automation
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Reviews

Big-picture takes: what it's for and whether it delivers. High-engagement YouTube videos — not sponsored.

Retell AI - Hyper Realistic AI Voice Agent
Retell AI · 108K views
Retell AI: From Zero to Voice Agent in 10 Minutes (Full Guide 2026)
Charlie Barber · 25K views

Tutorials

Step-by-step: exactly how to get things done with it.

Retell AI Tutorial - 2026 | How to Build a Voice AI Agent & Automate Calls | How to Use Retell AI
Dan - Smart Tutorials · 32K views