Lemlist

Cold email outreach platform with personalization and campaign management.

Capabilities

Integration	Available	Notes
API	✓	REST API for campaigns, leads, activities, webhooks
MCP	-	Not available
CLI	✓	Zero-dependency Node.js CLI
SDK	-	API-only

Authentication

• Type: Basic Auth (empty username, API key as password)
• Header: Authorization: Basic base64(:api_key)
• Env var: LEMLIST_API_KEY
• Get key: Lemlist Settings > Integrations

Common Agent Operations

List campaigns

node tools/clis/lemlist.js campaigns list --offset 0 --limit 20

Get campaign details and stats

# Get campaign
node tools/clis/lemlist.js campaigns get --id cam_abc123

# Get campaign stats
node tools/clis/lemlist.js campaigns stats --id cam_abc123

# Export campaign data
node tools/clis/lemlist.js campaigns export --id cam_abc123

Manage leads in a campaign

# List leads
node tools/clis/lemlist.js leads list --campaign-id cam_abc123

# Add a lead
node tools/clis/lemlist.js leads add --campaign-id cam_abc123 --email john@example.com --first-name John --last-name Doe --company "Example Inc"

# Get lead details
node tools/clis/lemlist.js leads get --campaign-id cam_abc123 --email john@example.com

# Remove a lead
node tools/clis/lemlist.js leads delete --campaign-id cam_abc123 --email john@example.com

Manage unsubscribes

# List unsubscribed emails
node tools/clis/lemlist.js unsubscribes list

# Add to unsubscribe list
node tools/clis/lemlist.js unsubscribes add --email john@example.com

# Remove from unsubscribe list
node tools/clis/lemlist.js unsubscribes delete --email john@example.com

View activities

# All activities
node tools/clis/lemlist.js activities list

# Filter by campaign and type
node tools/clis/lemlist.js activities list --campaign-id cam_abc123 --type emailsOpened

Manage webhooks

# List hooks
node tools/clis/lemlist.js hooks list

# Create a webhook
node tools/clis/lemlist.js hooks create --target-url https://example.com/webhook --event emailsOpened

# Delete a webhook
node tools/clis/lemlist.js hooks delete --id hook_123

Team info

node tools/clis/lemlist.js team info

Rate Limits

• API rate limits vary by plan
• Recommended: stay under 10 requests/second

Use Cases

• Link building outreach: Add prospects to campaigns for backlink requests
• Campaign management: Monitor open/reply rates across outreach campaigns
• Lead management: Add, remove, and track leads across campaigns
• Webhook integration: Get real-time notifications for email events