Businesses automating phone calls get a no-code builder and API with $10 free credit; per-minute costs vary widely depending on the models you choose.

Kenning's take

What it does

Retell AI lets companies build, deploy and monitor AI voice agents for phone calls, such as receptionists, appointment setters, lead qualification, customer service and debt collection. Agents can transfer to humans, book appointments, use a knowledge base, navigate phone menus and run large outbound call campaigns. It is pay as you go from $0.07 to $0.31 a minute depending on the voice and language model chosen, with $10 of free credit to start.

• No-code builder and developer API
• Call transfer to humans and appointment booking
• Batch outbound calling with branded caller ID
• Post-call analysis and AI quality assurance
• Choice of LLMs and voices from several providers
• Integrations with Twilio, Vonage, HubSpot, Make and n8n

Who it suits. Developers and businesses automating phone calls in sectors such as healthcare, finance, insurance and retail.

Key facts

Category

Developer tools

Made by

Retell AI

How to get it

sign up free with $10 in credits, pay as you go; enterprise contracts through sales

Works on

Web, API

Free plan

$10 in free credits

API price

voice infrastructure $0.055 a minute plus chosen TTS (from $0.015 a minute), LLM and telephony costs

Pricing

Plan	Price	Billed
Pay as you go	$0.07-0.31	per minute
Enterprise	Custom pricing	custom

source

FAQ

Facts from the maker's own pages and the sources listed. Checked 2026-10-11.