n8n-nodes-payzcore

n8n community node for PayzCore — blockchain transaction monitoring API.

Monitor USDT and USDC payments across 5 blockchain networks with automated workflows.

Important

PayzCore is a blockchain monitoring service, not a payment processor. All payments are sent directly to your own wallet addresses. PayzCore never holds, transfers, or has access to your funds.

• Your wallets, your funds — You provide your own wallet (HD xPub or static addresses). Customers pay directly to your addresses.
• Read-only monitoring — PayzCore watches the blockchain for incoming transactions and sends webhook notifications. That's it.
• Protection Key security — Sensitive operations like wallet management, address changes, and API key regeneration require a Protection Key that only you set. PayzCore cannot perform these actions without your authorization.
• Your responsibility — You are responsible for securing your own wallets and private keys. PayzCore provides monitoring and notification only.

Supported Networks

| Network | Token | |-------|-------| | TRC20 (Tron) | USDT | | BEP20 (BSC) | USDT, USDC | | ERC20 (Ethereum) | USDT, USDC | | Polygon | USDT, USDC | | Arbitrum | USDT, USDC |

Installation

1. Open your n8n instance
2. Go to Settings > Community Nodes
3. Enter n8n-nodes-payzcore
4. Click Install

Nodes

PayzCore

Regular node for interacting with the PayzCore API.

| Operation | Description | |-----------|-------------| | Create Payment | Create a new payment monitoring request | | Confirm Payment | Confirm a payment with transaction hash (static wallet mode) | | Get Payment | Get payment details by ID | | List Payments | List payments with optional status filter |

Create Payment additional fields: address (static wallet), external_order_id, expires_in, metadata.

PayzCore Trigger

Webhook trigger node that starts workflows when payment events occur.

| Event | Description | |-------|-------------| | payment.completed | Payment fully received and confirmed | | payment.overpaid | Received more than expected amount | | payment.partial | Partial payment received | | payment.expired | Payment window expired | | payment.cancelled | Payment cancelled by the merchant |

Features:

• HMAC-SHA256 signature verification
• Replay protection (5-minute window)
• Event type filtering

Credentials

| Field | Description | |-------|-------------| | API Key | Your PayzCore project API key (pk_live_...) | | API URL | API base URL (default: https://api.payzcore.com) | | Webhook Secret | Webhook signing secret for HMAC verification |

Setup

1. Sign up at app.payzcore.com
2. Create a project and copy your API Key
3. In n8n, add PayzCore API credentials with your API Key
4. For the Trigger node, also add your Webhook Secret

Usage Example

Monitor completed payments

1. Add a PayzCore Trigger node
2. Select payment.completed event
3. Connect to your workflow (e.g., send email, update database, notify Slack)

Create a payment

1. Add a PayzCore node
2. Select Create operation
3. Set amount and external reference. Optionally choose network and token.
4. If network is omitted, the customer selects on the payment page
5. The response includes the watch address and QR code (or payment URL if network was omitted)

Static Wallet Mode

When you pass an address in Create Payment, PayzCore uses your own static wallet instead of deriving an HD address. The API response may include these additional fields:

| Field | Description | |-------|-------------| | notice | Human-readable notice about static wallet behavior | | original_amount | The amount you requested (before any unique amount adjustment) | | requires_txid | If true, you must call Confirm Payment with the transaction hash |

When requires_txid is true, use the Confirm Payment operation to submit the blockchain transaction hash after the customer pays.

Resources

• PayzCore Documentation
• API Reference
• Getting Started
• Webhooks Guide
• Supported Networks
• Error Reference
• GitHub Repository

Before Going Live

Always test your setup before accepting real payments:

1. Verify your wallet — In the PayzCore dashboard, verify that your wallet addresses are correct. For HD wallets, click "Verify Key" and compare address #0 with your wallet app.
2. Run a test order — Place a test order for a small amount ($1–5) and complete the payment. Verify the funds arrive in your wallet.
3. Test sweeping — Send the test funds back out to confirm you control the addresses with your private keys.

Warning: Wrong wallet configuration means payments go to addresses you don't control. Funds sent to incorrect addresses are permanently lost. PayzCore is watch-only and cannot recover funds. Please test before going live.

License

MIT