n8n-nodes-bitcoin

[Velocity BPA Licensing Notice]

This n8n node is licensed under the Business Source License 1.1 (BSL 1.1).

Use of this node by for-profit organizations in production environments requires a commercial license from Velocity BPA.

For licensing information, visit https://velobpa.com/licensing or contact licensing@velobpa.com.

A comprehensive n8n community node for Bitcoin blockchain operations, providing access to 5 core resources including addresses, transactions, blocks, mempool, and fee estimation. Query Bitcoin network data, track transactions, analyze blockchain activity, and integrate Bitcoin data into your automation workflows with full API coverage.

Features

• Address Operations - Query address balances, transaction history, and UTXO sets
• Transaction Management - Retrieve transaction details, broadcast raw transactions, and track confirmations
• Block Information - Access block data, headers, and blockchain statistics
• Mempool Monitoring - Real-time mempool analysis and pending transaction tracking
• Fee Estimation - Dynamic fee calculation for optimal transaction pricing
• Multi-Network Support - Compatible with Bitcoin mainnet and testnet
• Rate Limiting - Built-in request throttling for API compliance
• Error Recovery - Comprehensive error handling with retry mechanisms

Installation

Community Nodes (Recommended)

1. Open n8n
2. Go to Settings → Community Nodes
3. Click Install a community node
4. Enter n8n-nodes-bitcoin
5. Click Install

Manual Installation

cd ~/.n8n
npm install n8n-nodes-bitcoin

Development Installation

git clone https://github.com/Velocity-BPA/n8n-nodes-bitcoin.git
cd n8n-nodes-bitcoin
npm install
npm run build
mkdir -p ~/.n8n/custom
ln -s $(pwd) ~/.n8n/custom/n8n-nodes-bitcoin
n8n start

Credentials Setup

Field	Description	Required
API Key	Your Bitcoin API service key	Yes
Network	Bitcoin network (mainnet/testnet)	Yes
Base URL	Custom API endpoint (optional)	No

Resources & Operations

1. Address

Operation	Description
Get Balance	Retrieve confirmed and unconfirmed balance for an address
Get Transaction History	List all transactions for a specific address
Get UTXO	Get unspent transaction outputs for an address
Validate Address	Check if a Bitcoin address is valid

2. Transaction

Operation	Description
Get Transaction	Retrieve detailed transaction information by hash
Get Raw Transaction	Get raw transaction data in hex format
Broadcast Transaction	Submit a signed raw transaction to the network
Get Transaction Status	Check confirmation status and block inclusion

3. Block

Operation	Description
Get Block	Retrieve block information by hash or height
Get Block Header	Get block header data only
Get Latest Block	Fetch the most recent block
Get Block Transactions	List all transactions in a specific block

4. Mempool

Operation	Description
Get Mempool Info	Retrieve current mempool statistics
Get Mempool Transactions	List pending transactions in mempool
Get Transaction Ancestors	Find parent transactions of a mempool transaction
Get Transaction Descendants	Find child transactions of a mempool transaction

5. Fee

Operation	Description
Estimate Fee	Calculate recommended fee for transaction confirmation
Get Fee Rate	Get current fee rates per byte
Get Fee History	Historical fee rate data
Smart Fee Estimate	AI-powered fee estimation for target confirmation time

Usage Examples

// Get Bitcoin address balance
{
  "address": "1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa",
  "include_unconfirmed": true
}

// Retrieve transaction details
{
  "transaction_hash": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
  "include_hex": true
}

// Get latest block information
{
  "include_transactions": false,
  "verbosity": 2
}

// Estimate transaction fee
{
  "target_blocks": 6,
  "transaction_size": 250,
  "priority": "medium"
}

Error Handling

Error	Description	Solution
Invalid Address	Bitcoin address format is incorrect	Verify address format and network compatibility
Transaction Not Found	Transaction hash does not exist	Check transaction hash and network selection
API Rate Limited	Too many requests to Bitcoin API	Implement delays or upgrade API plan
Network Timeout	Bitcoin node connection failed	Retry request or check node availability
Insufficient Funds	Address balance too low for operation	Verify address has required Bitcoin amount
Invalid Transaction	Raw transaction format incorrect	Validate transaction hex and signatures

Development

npm install
npm run build
npm test
npm run lint
npm run dev

Author

Velocity BPA

• Website: velobpa.com
• GitHub: Velocity-BPA

Licensing

This n8n community node is licensed under the Business Source License 1.1.

Free Use

Permitted for personal, educational, research, and internal business use.

Commercial Use

Use of this node within any SaaS, PaaS, hosted platform, managed service, or paid automation offering requires a commercial license.

For licensing inquiries: licensing@velobpa.com

See LICENSE, COMMERCIAL_LICENSE.md, and LICENSING_FAQ.md for details.

Contributing

Contributions are welcome! Please ensure:

1. Code follows existing style conventions
2. All tests pass (npm test)
3. Linting passes (npm run lint)
4. Documentation is updated for new features
5. Commit messages are descriptive

Support

• Issues: GitHub Issues
• Bitcoin Core API: Bitcoin Core RPC Documentation
• Developer Community: Bitcoin Stack Exchange