







Use Smartlead’s API to programmatically send campaigns and follow-ups.
Set conditions for replies, pauses, or lead updates without manual input.
Automate complex workflows across multiple inboxes and campaigns.
Let webhooks sync real-time updates across your CRM or reporting tools.
Trigger cold emails and follow-ups directly from your own backend.
Assign leads, switch sequences, and update campaign status.
Access inboxes, replies, and lead actions to control your workflow.
Balance volume with our email deliverability API layer.
Smartlead helped us scale to millions of emails with strong deliverability. The unlimited sending, easy inbox warm-up, and flexibility with custom tracking domains make it perfect for high-volume outbound. The UI is clean and the team ships updates fast. Workflows are intuitive, support is responsive, and Smartlead keeps improving with features that actually matter—like inbox rotation, blacklist monitoring, and advanced reply detection.

Gabriel M.
Founder, CEO - Reachflow
Get notified the moment a lead replies, bounces, or unsubscribes.
Push updates to Slack, CRMs, Google Sheets, or internal dashboards.
Connect your tools and workflows so nothing falls through the cracks.
Replace manual status checks with automated, real-time updates.
Plug straight into HubSpot, Salesforce, Pipedrive, Zoho, and more.
Use Zapier, Make, or N8N to push or pull data between Smartlead and 6,000+ apps.
Trigger workflows the instant a prospect replies, bounces, or books a call.
Keep every team and client dashboard aligned with one always-up-to-date data stream.
Smartlead’s API lets you control campaign sends, manage inboxes, update lead statuses, and automate follow-ups—all from your internal systems.
Smartlead webhooks notify you in real time when key events happen—like a lead replying, bouncing, or unsubscribing—so you can trigger custom actions instantly.
Yes. Agencies can use the API to manage campaigns, leads, and inboxes across unlimited accounts from one centralized system.
You can automate cold email sends, lead routing, follow-up triggers, CRM syncing, reporting, and status updates—ideal for large-scale outreach.
Yes. You can access full Smartlead API documentation and webhook setup guides from the API Docs page.
Save time with pre-built workflows. Pick a template, tweak it, and let AI run the show in minutes.






Create campaigns, adjust your settings, and push/pull data between software using our powerful API and webhook infrastructure.

Build and defend your mailbox sending reputation with 110k diverse mailboxes across Outlook, Google, Zoho and more.
Leads are auto-categorized based on their contextual reply sentiment.
Select from multiple categories to match your leads intent.
Automate positive, negative, out of the office and other scenarios with sub-sequences.


Create sub-sequences based on your leads' intentions. Close deals without any manual work.

Smartlead’s webhook and API infrastructure lets you easily communicate with any product in the market.
Connect all your tools and streamline your workflow with ease. Our product integrates seamlessly with the apps you already love and use every day.
