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n8n is an open-source workflow automation tool that you can self-host for complete data privacy and control. It offers powerful nodes for HTTP requests and webhooks to integrate with SendPilot.

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Why n8n?

  • Self-hosted: Keep your data on your own servers
  • Open source: Full transparency and customization
  • No vendor lock-in: Export and own your workflows
  • Powerful: Complex branching, loops, and error handling

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Setting Up SendPilot in n8n

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Step 1: Create a Webhook Node (Trigger)

  1. Create a new workflow in n8n
  2. Add a Webhook node as the trigger
  3. Set method to POST
  4. Copy the webhook URL (e.g., https://your-n8n.com/webhook/abc123)

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Step 2: Register Webhook in SendPilot

  1. Go to SendPilot Integrations → Webhooks
  2. Click Add Webhook
  3. Paste your n8n webhook URL
  4. Select events: message.received, connection.accepted, etc.
  5. Save

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Step 3: Configure HTTP Request Node (Actions)

For calling SendPilot API, use the HTTP Request node: 
Node: HTTP Request
  Method: POST
  URL: https://api.sendpilot.ai/api/v1/leads
  Authentication: None (use headers)
  Headers:
    X-API-Key: YOUR_API_KEY
    Content-Type: application/json
  Body:
    {
      "campaignId": "{{$json.campaignId}}",
      "leads": [...]
    }

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Example Workflows

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1. Lead Reply → Slack + HubSpot

[Webhook Trigger] 
    → [IF: eventType == "message.received"]
    → [Slack: Send Message to #sales]
    → [HubSpot: Create Task]
Webhook Node Configuration:
  • Path: /sendpilot-events
  • Method: POST
IF Node Configuration:
  • Value 1: {{$json["eventType"]}}
  • Operation: Equal
  • Value 2: message.received
Slack Node Configuration:
  • Channel: #sales-leads
  • Message: 🎉 Reply from {{$json["data"]["linkedinUrl"]}}: {{$json["data"]["replyPreview"]}}

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2. Google Sheet → Add Leads to Campaign

[Schedule Trigger (every hour)]
    → [Google Sheets: Read Rows]
    → [HTTP Request: POST /v1/leads]
    → [Google Sheets: Update Row (mark as processed)]
HTTP Request Node: 
{
  "method": "POST",
  "url": "https://api.sendpilot.ai/api/v1/leads",
  "headers": {
    "X-API-Key": "YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  "body": {
    "campaignId": "your_campaign_id",
    "leads": [
      {
        "linkedinUrl": "={{$json[\"LinkedIn URL\"]}}",
        "firstName": "={{$json[\"First Name\"]}}",
        "lastName": "={{$json[\"Last Name\"]}}",
        "company": "={{$json[\"Company\"]}}"
      }
    ]
  }
}

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3. Connection Accepted → Enrich + CRM Sync

[Webhook: connection.accepted]
    → [HTTP Request: Clearbit Enrichment]
    → [Merge: Combine data]
    → [Salesforce: Update Lead]
    → [Slack: Notify team]

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4. Daily Campaign Report

[Schedule: Daily at 9am]
    → [HTTP Request: GET /v1/campaigns]
    → [Code: Calculate metrics]
    → [Slack: Send report]
HTTP Request Node (Get Campaigns): 
{
  "method": "GET",
  "url": "https://api.sendpilot.ai/api/v1/campaigns",
  "headers": {
    "X-API-Key": "YOUR_API_KEY"
  }
}

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Reusable Credential Setup

Create a custom credential for SendPilot API:
  1. Go to Credentials in n8n
  2. Click Add Credential
  3. Select Header Auth
  4. Configure:
    • Name: SendPilot API
    • Header Name: X-API-Key
    • Header Value: YOUR_API_KEY
Now you can select this credential in HTTP Request nodes.

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Error Handling

n8n provides excellent error handling: 
[HTTP Request]
    → Success: [Continue workflow]
    → Error: [Slack: Send error alert]
           → [Log error to database]
Add an Error Trigger workflow to catch failures: 
[Error Trigger]
    → [Slack: Alert #ops channel]
    → [Save to error log]

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Complete Workflow JSON

Here’s a complete workflow you can import into n8n: 
{
  "name": "SendPilot Reply Handler",
  "nodes": [
    {
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "position": [250, 300],
      "parameters": {
        "path": "sendpilot-events",
        "httpMethod": "POST"
      }
    },
    {
      "name": "Filter Replies",
      "type": "n8n-nodes-base.if",
      "position": [450, 300],
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{$json[\"eventType\"]}}",
              "value2": "message.received"
            }
          ]
        }
      }
    },
    {
      "name": "Slack",
      "type": "n8n-nodes-base.slack",
      "position": [650, 250],
      "parameters": {
        "channel": "#sales-leads",
        "text": "🎉 New reply from {{$json[\"data\"][\"linkedinUrl\"]}}!"
      }
    }
  ]
}

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Best Practices

Store your API key in n8n environment variables, not hardcoded in workflows.
Use the HTTP Request node’s built-in retry options for resilience.
Add logging nodes to track workflow execution for debugging.
Use n8n’s “Execute Workflow” feature to test with real webhook payloads.

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Deployment

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Self-Hosted

docker run -it --rm \
  -p 5678:5678 \
  -e N8N_BASIC_AUTH_ACTIVE=true \
  -e N8N_BASIC_AUTH_USER=admin \
  -e N8N_BASIC_AUTH_PASSWORD=secure_password \
  -v ~/.n8n:/home/node/.n8n \
  n8nio/n8n

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n8n Cloud

Use n8n.cloud for a managed solution with the same features.