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Smartlead.ai API

Outreach & Email

Cold email outreach automation & deliverability platform API.

Scale cold outreach with unlimited mailboxes, AI warmups, multi-channel sequences, lead tracking, and real-time reply sentiment analysis.

Details

Auth Type
API Key
Rate Limit
100 requests/min
Pricing
Freemium / Paid
Full Docs
Step 1: Save your provider key

This is NOT your Callio key. Enter the API key from the provider's dashboard (e.g. OpenAI/SendGrid).

API Key

1. Log into your Smartlead.ai dashboard. 2. Navigate to Settings → API Keys. 3. Click "Generate New Key". 4. Paste the key here.

Get API Credentials

Getting Started

1

Try It Instantly

Click "Try It" above to test the API in the playground

2

Add to Your Agent

Click "Add to Agent" to get your API key and integrate

Common Use Cases

Cold email analytics
Lead sequence tracking
Reply sentiment analysis
Mailbox deliverability

💻 Code Examples

Get started quickly with these code examples in your favorite language

curl -X GET \
  'https://www.callio.dev/api/proxy/smartlead/forward?target=https%3A%2F%2Fserver.smartlead.ai%2Fapi%2Fv1%2Fendpoint' \
  -H 'Authorization: Bearer YOUR_CALLIO_KEY' \
  -H 'Content-Type: application/json'

💡 Tip: Replace YOUR_CALLIO_KEY with your actual Callio API key from the dashboard.

Ready to integrate Smartlead.ai API?

Test endpoints live or generate your API key and start building in minutes

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