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Integration · Retell AI to Smartlead

Retell AI and Smartlead integration

Your cold email runs in Smartlead. We connect it to a Retell AI voice agent so interested replies get a call within minutes, and what happened on that call flows straight back to the lead in Smartlead. It is a one-time setup by our team, not a monthly middleware subscription.

  • From $100, one-time setup
  • No monthly fees from us
  • Tested on your own calls before go-live
Get a written scope
Retell AI Smartlead

One call ends in Retell AI. In Smartlead:

  1. Lead replies in SmartleadMarked as interested
  2. Retell AI agent calls themWhile the reply is still fresh
  3. Outcome saved on the leadCategory, summary and next step
One-time setup
From $100
Monthly fee from us
$0
Working days to a written scope
2
Working days to build and test
5–10

Get a fixed price for Retell AI + Smartlead

One-time setup, no monthly fees. Tell us where to send it and we reply within 2 working days.

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Who connects Retell AI and Smartlead

Outbound agencies and lead generation teams send cold email at scale with Smartlead. The hard part is not getting replies, it is responding to them fast enough. By the time someone reads an interested reply and picks up the phone, the prospect has moved on to their next meeting.

A Retell AI voice agent can make that first call for you. When a lead replies with interest, the agent calls, qualifies them with your questions and tries to book a meeting. The summary and outcome then go back to the lead in Smartlead, so the sequence stops, the lead is categorised correctly and a person only steps in when it is worth their time.

  • Lead generation agenciesInterested replies across client campaigns get a qualifying call without adding headcount.
  • Outbound teams with high reply volumeNo interested lead waits hours for a call back.
  • After-hours and weekend repliesReplies that arrive outside working hours still get a prompt, polite call.

What we connect between Retell AI and Smartlead

A typical setup. We adjust each line to how your team uses Retell AI and Smartlead.

When this happensThis is what you get
A lead marked as interested in SmartleadA call from your Retell AI agent, with the lead’s details and campaign
An AI call endsA note on the Smartlead lead with the call summary
The call outcomeThe lead category you choose, such as meeting booked or not interested
A meeting booked on the callThe sequence stops for that lead, and your team is notified
The transcript and recordingLinked from the note, for anyone who wants the detail
No answerA retry at the time you choose, or a follow-up email instead

Field mapping, event by event

Each Retell AI event and exactly what it writes in Smartlead. Pick an event to see its fields.

1. Trigger · Retell AI When an AI call ends Every call made or received in Retell AI
2. Action · Smartlead Log the lead update In Smartlead, on the lead — Where your team already works
Smartlead field Mapped from What happens
Activity date Start timestamp15 Sep, 4:00 pm Shown in your time zone
Call length Duration ms3 min 04 s Stored the way Smartlead expects
Recording Call recordingPlayable audio Added once the file is ready
Summary and transcript TranscriptWants a demo next week Saved as note text
Owner Agent idMaria Lopez Matched to the same person in Smartlead
Lead Matched by phone number+1 415 555 0142 A new lead is created only if none match
1. Trigger · Retell AI When the call summary is ready Transcript and summary are finished
2. Action · Smartlead Save a note In Smartlead, on the lead — Readable by anyone who opens the record
Smartlead field Mapped from What happens
Transcript TranscriptAgent: Hi, this is… Below the summary
Lead Same match as the call+1 415 555 0142 Linked to the same record as the call

Sample values are made up. The exact fields are agreed with you in your scope.

A one-time setup, not a monthly middleware bill

We are not a middleware. We plan the connection, set it up, test it on your calls and hand it over.

Web Repay integration setup Middleware subscription
What you pay One-time setup, from $100 (one-off) A monthly plan, often priced by tasks or operations
As call volume grows The same price, no per-task charges Costs rise with every call that syncs
Who builds and tests it We do, on your own Retell AI calls Your team builds and maintains every step
Where it runs In your own Retell AI and Smartlead accounts, documented Inside the middleware vendor’s platform
When something changes Additional support as needed, when you request it Your team fixes the broken steps

Where a small connector layer is the most reliable route, we say so in your written scope, set it up in your own account and choose the option with the lowest running cost.

Where Retell AI and Smartlead setups usually go wrong

Calling the right people only

Not every reply is interest, and not every lead has agreed to a call. We agree exactly which categories trigger a call, and when calls are allowed, before anything goes live.

Sequences that keep sending

If a lead books a meeting on the phone but the email sequence keeps going, it looks careless. We stop the sequence as soon as the call outcome says so.

Summaries people can read

AI calls produce long transcripts. We keep a short summary at the top of the note so your team can read the call in seconds.

Leads from several campaigns

The same person can sit in more than one campaign. We match the call to the lead and campaign it came from, so the right sequence stops.

How we set it up

  1. 1

    Agree the call rules

    Which replies trigger a call, what the agent should ask, and what each outcome changes in Smartlead. You get a written scope with a fixed one-time price.

  2. 2

    Access for the setup

    Access to Smartlead and your Retell AI account and agent. Nothing for your team to install.

  3. 3

    We connect and test

    We run test leads through the flow, take the calls ourselves and check every category, note and stopped sequence.

  4. 4

    Handover

    A short document of the flow. It runs in your own accounts, with no monthly fee from us.

Two agents on headset calls in an office
Test call passedEvery field in the table checked LiveWatched for the first week

What it costs

From $100 one-time setup

Starting price for connecting Retell AI and Smartlead, built and tested. Larger mappings get a fixed quote in writing before we start.

No monthly fee from us. Additional support is available as needed, whenever you request it.

Get a written scope

Tell us what should happen in Smartlead when a call ends. We reply within 2 working days.

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From the blog

Further reading

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Questions about Retell AI and Smartlead

Can a Retell AI agent call leads who reply in Smartlead?

Yes. When a lead is marked with the category you choose, such as interested, your Retell AI agent calls them, and the outcome is saved back on the lead in Smartlead.

Does the email sequence stop after the call?

Yes, when the outcome calls for it. A booked meeting or a clear no stops the sequence for that lead, and we test this before go-live.

Is there a monthly fee?

No. You pay once for the setup. Unlike Zapier, Make and similar middleware subscriptions, there is no monthly or per-task charge from us. Your own Smartlead and Retell AI plans are unchanged.

Can you also build the Retell AI agent?

Yes. If you do not have an agent yet, we can set one up with your questions and booking rules as part of the same project.

Rather talk it through?

Thirty minutes on how your team uses Retell AI and Smartlead. You leave knowing what we would build and what it would cost.

Call +91 82857 48750
Colleagues working together in an office
Call ended03:04 · inbound Lead categorisedMeeting booked Call-back taskAssigned to the contact owner