CurviatexSmartlead
Pair Smartlead email with LinkedIn steps. Connect the two with Curviate’s webhooks and API, then build the flow you need.
What is Smartlead?
Smartlead is a cold email outreach platform with unlimited mailboxes, warm-up, automated sequences and a unified inbox. Agencies and sales teams use it to run outbound email.
Visit smartlead.aiHow Smartlead works with Curviate
Run email in Smartlead and LinkedIn in Curviate as one sequence: add people to a Motion when an email step is done, and pause email when they reply on LinkedIn. Connect the two through n8n, Make or Zapier.
Events outmessage.receivedconnection.acceptedenrollment.finishedActions inadd contactsstart a MotionWhat you can build
Three flows teams set up first. Each one takes a few minutes.
LinkedIn after the email step
When a lead finishes an email step in Smartlead, they are added to a Motion for a LinkedIn touch.
POST /v1/motions/…/contacts
A LinkedIn reply pauses email
When a lead replies on LinkedIn, your flow finds them in Smartlead by their LinkedIn URL and pauses them.
message.received
Accepted invite, warmer email
When someone accepts your invitation, Smartlead moves them to a warmer email sequence.
connection.acceptedSet up Smartlead with Curviate
Everything runs on two things Curviate gives every account: signed webhooks out and a REST API in.
- 1
Copy your Curviate API key
In the Curviate dashboard, open Settings, then API & Webhooks, and copy your key.
# keep it in your tool's credentials, never in plain text
CURVIATE_API_KEY=cvt_live_••••3f9a - 2
Connect Smartlead to your automation
Sign in to Smartlead inside n8n, Make or Zapier, or create an API key in Smartlead if you write your own code.
- 3
Send Curviate events to it
Point a Curviate webhook at an n8n, Make or Zapier webhook trigger, or at your own endpoint. Each webhook covers one source:
messagingfor replies,userfor accepted invitations,motionfor Motion outcomes,account_statusfor account alerts.curl https://api.curviate.com/v1/webhooks \
-H "Authorization: Bearer $CURVIATE_API_KEY" \
-d '{
"source": "messaging",
"events": ["message.received"],
"account_ids": ["acc_…"],
"request_url": "https://hooks.zapier.com/hooks/catch/…"
}' - 4
Write to Smartlead
Add the Smartlead step your tool offers, such as creating or updating a lead, and map the fields from the Curviate event.
# what your tool receives
{ "event": "connection.accepted",
"data": { "account_id": "acc_…", "occurred_at": "2026-10-17T09:12:00Z", … } } - 5
Send Smartlead leads into a Motion
Trigger on a change in Smartlead, then add each person to Curviate and start your Motion.
# add the person as a contact
POST https://api.curviate.com/v1/contacts
{ "linkedin_url": "linkedin.com/in/lenaweber", "first_name": "Lena" }
# start your Motion for them
POST https://api.curviate.com/v1/motions/mot_…/contacts
{ "contact_ids": ["con_…"] }
Events you can use
message.receivedA LinkedIn message or InMail arrivedconnection.acceptedSomeone accepted an invitation you sent through Curviateenrollment.finishedA contact finished a Motion, with the reasonmotion.signalA Motion reached a step you marked to notify youpost.publishedA scheduled post went liveaccount.reconnect_neededAn account needs to sign in againActions you can call
POST /v1/contactsAdd or update a contactPOST /v1/motions/{id}/contactsStart a Motion for contactsPOST /v1/{account_id}/chats/{chat_id}/messagesSend a messagePOST /v1/enrollments/{id}/signalTell a waiting Motion to continueGET /v1/{account_id}/companies/{identifier}Read a company pageQuestions about Curviate x Smartlead
Can LinkedIn and email work as one sequence?
Yes. Events from each side move the lead along on the other, so every person gets one conversation, not two.
What happens when someone replies on LinkedIn?
Your flow pauses them in Smartlead, and by default the Motion stops its follow-ups for that person too.
Do both tools need the same lead list?
No. Curviate recognises people by their LinkedIn profile, so a lead only needs a LinkedIn URL.
More email outreach
Connect Smartlead today.Free for 7 days.
Create your API key, point a webhook at Smartlead and run your first flow.