Actions113
- blocks Actions
- Get Block Details By Block Hash UTXOs
- List Transactions by Block Hash EVM
- List Transactions by Block Hash UTXOs
- List Transactions By Block Hash XRP
- List Transactions By Block Height XRP
- List Transactions by Block Height EVM
- List Transactions by Block Height UTXOs
- Get Block Details By Block Height UTXOs
- Get Block Details By Block Height EVM
- Get Block Details By Block Height XRP
- Get Block Details By Block Hash EVM
- Get Block Details By Block Hash XRP
- Get Last Mined Block EVM
- Get Last Mined Block UTXOs
- Get Latest Mined Block XRP
- List Latest Mined Blocks UTXOs
- List Latest Mined Blocks EVM
- List Latest Mined Blocks XRP
- HD Wallets Actions
- Sync HD Wallet (xPub, yPub, zPub)
- Derive And Sync New Receiving Addresses UTXO
- Derive And Sync New Change Addresses UTXO
- Derive And Sync New Receiving Addresses EVM
- Derive And Sync New Receiving Addresses XRP
- List Synced Addresses UTXO
- List Synced Addresses EVM
- List Synced Addresses XRP
- List HD Wallet (xPub, yPub, zPub) Transactions UTXO
- List HD Wallet (xPub, yPub, zPub) Transactions EVM
- List HD Wallet (xPub, yPub, zPub) Transactions XRP
- List HD Wallet (xPub, yPub, zPub) UTXOs
- Prepare A UTXO-Based Transaction From HD Wallet (xPub, yPub, zPub)
- Prepare A Transaction From an Address in HD Wallet (xPub, yPub, zPub) EVM
- Get HD Wallet (xPub, yPub, zPub) Assets UTXO
- Get HD Wallet (xPub, yPub, zPub) Assets EVM
- Get HD Wallet (xPub, yPub, zPub) Assets XRP
- Get HD Wallet (xPub, yPub, zPub) Details UTXO
- Get HD Wallet (xPub, yPub, zPub) Details EVM
- Get HD Wallet (xPub, yPub, zPub) Details XRP
- List Synced HD Wallets (xPub, yPub, zPub)
- Activate HD Wallet (xPub, yPub, zPub)
- Delete Synced HD Wallet (xPub, yPub, zPub)
- address-latest Actions
- Utilities Actions
- simulate-transactions Actions
- addresses-latest Actions
- Get Address Balance Solana
- List Transactions By Address Solana
- Get Address Balance EVM
- Get Address Balance XRP
- Get Address Balance Kaspa
- List Confirmed Transactions By Address EVM
- List Transactions by Address XRP
- List Confirmed Transactions By Address UTXOs
- List Confirmed Transactions By Address Kaspa
- List Unconfirmed Transactions by Address UTXOs
- List Internal Transactions By Address EVM
- Get Next Available Nonce EVM
- List Confirmed Tokens Transfers By Address EVM
- addresses-historical Actions
- Get Address Balance UTXOs
- List Confirmed Transactions By Address EVM history
- List Confirmed Transactions By Address UTXO Historical
- List Unspent Transaction Outputs By Address UTXOs
- Sync Address
- List Synced Addresses
- Get Synced Address Tokens Transfer EVM
- Activate Synced Address
- Delete Synced Address
- List Synced Address Internal Transactions EVM
- List Tokens By Address Synced EVM
- blockchain-events Actions
- New Confirmed Coins Transactions
- New Unconfirmed Coins Transactions
- New Confirmed Tokens Transactions
- New Confirmed Coins Transactions And Each Confirmation
- New Confirmed Tokens Transactions And Each Confirmation
- Mined Transaction
- New Block
- List Blockchain Events Subscriptions
- Get Blockchain Event Subscription Details By Reference ID
- Delete Blockchain Event Subscription
- Activate Blockchain Event Subscription
- New Confirmed Internal Transactions
- New Confirmed Internal Transactions And Each Confirmation
- Crypto Transactions Actions
- Get Transaction Details By Transaction Hash Solana
- Get Transaction Details By Transaction Id Kaspa
- Get Transaction Details By Transaction Hash EVM
- Get Transaction Details By Transaction Hash UTXOs
- Get Transaction Details By Transaction Hash XRP
- List Internal Transaction Details by Transaction Hash EVM
- List Tokens Transfers By Transaction Hash EVM
- List Logs By Transaction Hash EVM
- Get Raw Transaction Data UTXOs
- contracts Actions
- blockchain-fees Actions
- broadcast-transactions Actions
- prepare-transactions Actions
- Market Data & Prices Actions
Overview
This node activates a blockchain event subscription using the Crypto APIs REST API. It allows users to subscribe to specific blockchain events on a chosen blockchain and network, identified by a reference ID. This is useful for applications that need to react to blockchain events such as transactions, token transfers, or other on-chain activities in real-time.
Practical examples include:
- Monitoring wallet addresses for incoming or outgoing transactions.
- Triggering workflows when a new block is added to a blockchain.
- Receiving notifications about token transfers or smart contract events.
Properties
| Name | Meaning |
|---|---|
| blockchain | The blockchain network to monitor (e.g., Ethereum, Bitcoin). |
| network | The specific network of the blockchain (e.g., mainnet, testnet). |
| referenceId | A unique identifier for the subscription reference. |
| context | Optional additional context information for the subscription. |
| JSON Body | Additional parameters for the subscription request, provided as a collection of fields. |
Output
The node outputs an array of JSON objects representing the response from the Crypto APIs service after activating the blockchain event subscription. Each output item corresponds to the API's response data structure, typically including details about the subscription status and metadata.
If the API returns binary data (not indicated here), it would be included accordingly, but this operation primarily deals with JSON responses.
Dependencies
- Requires an active API key credential for the Crypto APIs REST API.
- The node reads a local OpenAPI specification file (
2024-12-12-final.json) to dynamically resolve API paths and operations. - Network connectivity to the Crypto APIs service endpoint is necessary.
Troubleshooting
- Operation not found error: If the specified operation cannot be found in the API specification, ensure the operation name matches exactly and the API spec file is present and correctly loaded.
- Invalid or missing parameters: Make sure all required properties (
blockchain,network,referenceId) are provided and valid. - API authentication errors: Verify that the API key credential is configured properly in n8n.
- Network issues: Check internet connectivity and firewall settings if requests fail to reach the Crypto APIs service.
- Continue on Fail: If enabled, errors will be returned as JSON objects with an
errorfield instead of stopping execution.