Retell AI
- Offer
- $10 free trial credits for new accounts, no card to start testing
- Price
- Usage-based (pay as you go from $0 platform fee)
- Card required
- No
- Works in UK
- Yes
- Last checked
- 12 October 2026
- Source
- Vendor page
Our honest note
Phone agents that can take calls and book appointments. Docs: new accounts get $10 trial credits once per email; phone numbers and some add-ons need a payment method. Billing moved toward prepaid credits (legacy monthly ends 30 Sep 2026).
Good for: Build a voice assistant
Weekly: UK AI agent deals
One short email a week: new free trials that work in the UK, which ones need a card, and one practical use case. No spam, unsubscribe any time.