← All docs

Welcome to Costello

Welcome to Costello

Costello is an AI receptionist for medical spas and skincare businesses. It replies to messages on Instagram, Facebook Messenger, and your website in under 60 seconds. It qualifies the enquiry and sends the lead your booking link.

Most businesses see their first qualified enquiry within a day of going live.

The three-minute version

1
Sign up

Go to platform.costellohq.com/signup — it's free, no card required.

2
Train your AI

We scrape your website to pre-fill your services, hours, and brand voice. You review and tweak.

3
Connect your channels
4
Test it

Chat with your AI receptionist in the Playground to see how it answers real enquiries.

5
Go live

Once you're happy with the tone and answers, Costello starts replying for you.

6
Add more knowledge

The more you give Costello, the smarter it gets. Upload documents, fill in your opening hours and services, and write FAQ pairs for any answers you want word-for-word. Explore data sources →

7
Monitor your first conversations

Check the Activity tab to see your first live conversations and make sure everything reads the way you want it to.

Costello dashboard
A typical Costello dashboard after going live.

What Costello does

Answers questions instantly
Covers services, prices, opening hours, location, parking, and anything you've trained it on.
Qualifies leads
Asks screening questions before recommending your booking link, so only serious enquiries come through.
Hands off cleanly
When it doesn't know the answer or the customer needs a human, your team takes over from your existing inbox.
Captures the conversation
Every enquiry and how it was handled is logged in Activity for your review.
More knowledge = smarter Costello

The more accurate and detailed your knowledge base, the better Costello's replies will be. After going live, keep your training data updated as your prices, services, and hours change.

What Costello does not do

  • It does not call out. It only responds when a customer writes first.
  • It does not book appointments directly. It hands the lead your booking link (Fresha, Square, Calendly, etc.) — your existing system handles the calendar.
  • It is not email or SMS marketing. It only replies to inbound messages on your connected channels.

Pricing at a glance

PlanPriceMessages / moChannels
Free£0501
Growth£11.30/wk (£49/mo)1,0002
Unlimited£29.80/wk (£129/mo)No capAll

Hard cap auto-disconnects at 100% so you never pay for messages you didn't agree to. Referrals earn both sides 250 bonus messages.

Next steps