n8n-nodes-xpay

This is an n8n community node that enables you to monetize your n8n workflows with USDC payments on Base. Turn any workflow into a paid service in 60 seconds using xpay.

Overview

The xpay pay-to-run trigger node creates a hosted payment form for your workflow. When a customer pays, your workflow runs automatically with their payment and form data.

Key Features:

• Accept USDC payments on Base network
• Hosted Pay to Run form - no frontend required
• Custom form fields for customer input
• Non-custodial - payments go directly to your wallet
• Sandbox mode for testing without real payments

Installation

n8n Cloud

1. Open Settings > Community Nodes
2. Click Install a community node
3. Enter @xpaysh/n8n-nodes-xpay
4. Click Install

Self-Hosted n8n

npm install @xpaysh/n8n-nodes-xpay

Or via n8n UI:

1. Go to Settings > Community Nodes
2. Click Install a community node
3. Enter @xpaysh/n8n-nodes-xpay
4. Click Install

Development

# Clone the repository
git clone https://github.com/xpaysh/n8n-nodes-xpay.git
cd n8n-nodes-xpay

# Install dependencies
npm install

# Build the node
npm run build

# Link to your n8n installation
npm link
cd ~/.n8n/custom
npm link @xpaysh/n8n-nodes-xpay

Authentication

1. Sign up at app.xpay.sh
2. Go to Settings > API Keys
3. Create a new API key
4. In n8n, go to Credentials > Add Credential
5. Search for "xpay API"
6. Paste your API key
7. Select environment: Sandbox (testing) or Production (real payments)

Getting Started

1. Create a Paid Workflow

1. Create a new workflow in n8n
2. Add the xpay pay-to-run trigger node
3. Configure:
   • Product Name: e.g., "Premium SEO Audit"
   • Price: e.g., 5.00 (prices $1+ accept card payments)
   • Environment: Development (for testing)
   • Recipient Wallet: Default Wallet or Custom Wallet
   • Customer Fields: Add fields like "email", "website"
4. Connect your workflow nodes (HTTP Request, Send Email, etc.)
5. Activate the workflow

2. Get Your Pay to Run Form URL

Option A: POST to Webhook URL (Recommended)

curl -X POST <your-webhook-url>

Response:

{
  "message": "xpay pay-to-run trigger is listening!",
  "form_url": "https://run.xpay.sh/p/chk_abc123",
  "test_mode": true
}

Option B: Check n8n Logs

After activating, check your n8n server logs for the form URL.

3. Test in Development Mode

With Environment: Development:

• Simulated payments - no real transactions
• Signature verification is skipped
• Use "Simulate Payment" on the form, or POST test data:

curl -X POST <your-webhook-url> \
  -H "Content-Type: application/json" \
  -d '{"payment":{"amount":5},"input":{"email":"test@example.com"}}'

Node Properties

Output Data

When a payment is received, your workflow receives:

{
  "payment": {
    "txHash": "0x123...",
    "amount": 5.00,
    "currency": "USDC",
    "payer": "0xABC...",
    "network": "base",
    "timestamp": 1702841234
  },
  "input": {
    "email": "customer@example.com",
    "website": "https://example.com"
  },
  "metadata": {
    "checkoutId": "chk_abc123",
    "receivedAt": "2024-12-17T10:00:00.000Z"
  }
}

Environment Modes

Note: When testing in n8n (clicking "Execute workflow"), a temporary checkout is created. For a persistent URL, Activate the workflow.

Use Cases

• SEO Audits: Charge per website audit
• Report Generation: Sell custom data reports
• API Access: Monetize per-request API usage
• Consultations: Accept payment before scheduling
• Digital Products: Deliver files after payment
• Lead Generation: Qualify leads with payment intent

Security

• Non-custodial: Payments flow directly to your wallet
• HMAC signatures: Webhooks are signed (production mode)
• Replay protection: Each payment triggers only once
• Timestamp validation: Stale requests are rejected

Compatibility

• n8n version: 1.0.0+
• Node.js: 18.10+
• Networks: Base Mainnet, Base Sepolia

Resources

• xpay Documentation
• xpay Dashboard
• n8n Community Nodes Guide

Support

• Issues: GitHub Issues
• Email: xpaysh@gmail.com
• Website: xpay.sh

Development & Publishing

Setup

git clone https://github.com/xpaysh/n8n-nodes-xpay.git
cd n8n-nodes-xpay
npm install
npm run build

Publishing Checklist

Before publishing a new version:

1. Update code - Make your changes to nodes/XPayTrigger/XPayTrigger.node.ts
2. Update README - Update this file if properties or behavior changed
3. Bump version - Update version in package.json
4. Build - Run npm run build and verify no errors
5. Test locally - Link to local n8n and test the node works
6. Commit - git add . && git commit -m "description"
7. Push - git push origin main
8. Publish - Run the publish command below

Publishing Commands

# Login to npm (required if token expired)
npm login

# Publish with public access (scoped package)
npm publish --access public

Version Bumping

# Patch release (0.1.3 -> 0.1.4) - bug fixes
npm version patch

# Minor release (0.1.3 -> 0.2.0) - new features
npm version minor

# Major release (0.1.3 -> 1.0.0) - breaking changes
npm version major

Post-Publish

After publishing:

1. Verify on npm: https://www.npmjs.com/package/@xpaysh/n8n-nodes-xpay
2. Test installation: npm install @xpaysh/n8n-nodes-xpay
3. Create GitHub release with changelog (optional)

License

MIT