n8n-nodes-cryptoapis

This is an n8n community node for Crypto APIs. It lets you use Crypto APIs blockchain services directly in your n8n workflows.

Crypto APIs provides unified blockchain APIs for 15+ blockchains including Bitcoin, Ethereum, Polygon, Avalanche (C-Chain), XRP, Solana, and more.

n8n is a fair-code licensed workflow automation platform.

Installation

Follow the installation guide in the n8n community nodes documentation.

Credentials

You need a Crypto APIs API key to use this node. Get one at app.cryptoapis.io.

The credential supports an optional API URL field for users with custom API setups. The default is https://rest.cryptoapis.io.

Resources & Operations

Address Latest

Query current balances and recent transactions (last 14 days) across EVM, UTXO, Solana, XRP, and Kaspa blockchains.

Address History

Full transaction history for synced addresses. Requires address sync first. Supports EVM and UTXO blockchains.

Block Data

Get block details by height or hash, list transactions within blocks, and retrieve latest mined blocks for EVM, UTXO, and XRP.

Blockchain Fees

Fee recommendations and gas estimation for EVM (including EIP-1559), UTXO smart fee estimation, and XRP fee recommendations.

Transactions Data

Transaction details, internal transactions, token transfers, and event logs across EVM, UTXO, Solana, XRP, and Kaspa.

Market Data

Asset details, exchange rates, and supported asset metadata (crypto and fiat).

Contracts

Token details by contract address for EVM (Ethereum, BSC, Ethereum Classic) and Solana.

HD Wallet

HD wallet management (sync, list, activate, delete), address derivation, balance queries, and transaction preparation for EVM, UTXO, and XRP.

Prepare Transactions

Build unsigned EVM transactions for native coin, ERC-20 token, and ERC-721 NFT transfers.

Simulate

Dry-run Ethereum transactions to preview outcomes without broadcasting.

Broadcast

Broadcast signed transactions to any supported blockchain network.

Blockchain Events

Create and manage webhook subscriptions for blockchain events (confirmed/unconfirmed transactions, new blocks, etc.).

Utils

Address validation, raw transaction decoding, address derivation from xPub, Bitcoin Cash address conversion, and XRP X-Address encode/decode.

AI Agent Integration

Using as an AI Tool (usableAsTool)

The main Crypto APIs node has usableAsTool: true, so it can be used directly as a tool by n8n's AI Agent node — just connect it to an AI Agent and it will expose its operations as tool calls.

MCP Client Tool

You can also use n8n's built-in MCP Client Tool node to connect to the hosted Crypto APIs MCP server at https://ai.cryptoapis.io/mcp or a self-hosted instance. This gives AI agents access to 50+ blockchain tools via MCP.

Supported Blockchains & Networks

EVM

| Blockchain | Mainnet | Testnet | |------------|---------|---------| | Ethereum | mainnet | sepolia | | Ethereum Classic | mainnet | mordor | | Binance Smart Chain | mainnet | testnet | | Polygon | mainnet | amoy | | Avalanche (C-Chain) | mainnet | fuji | | Tron | mainnet | nile | | Arbitrum | mainnet | sepolia | | Base | mainnet | sepolia | | Optimism | mainnet | sepolia |

UTXO

| Blockchain | Mainnet | Testnet | |------------|---------|---------| | Bitcoin | mainnet | testnet | | Bitcoin Cash | mainnet | testnet | | Litecoin | mainnet | testnet | | Dogecoin | mainnet | testnet | | Dash | mainnet | testnet | | Zcash | mainnet | testnet |

Other

| Blockchain | Mainnet | Testnet | |------------|---------|---------| | XRP (Ripple) | mainnet | testnet | | Solana | mainnet | devnet | | Kaspa | mainnet | — |

Development

npm install
npm run build     # Compiles to dist/
npm run dev       # Watch mode
npm run lint      # Type check

Local testing

# Install in local n8n
cd ~/.n8n
npm install /path/to/cryptoapis-n8n-nodes
# Then restart n8n

License

MIT