@cryptoapis-io/mcp-address-history

MCP server for Crypto APIs Address History product. Query full blockchain address transaction history for synced addresses.

API Version: Compatible with Crypto APIs version 2024-12-12

Features

• Query complete EVM address history (Ethereum, Ethereum Classic, BSC, Polygon, Tron)
• Query complete UTXO address history (Bitcoin, Bitcoin Cash, Litecoin, Dogecoin, Dash, Zcash)
• Manage address sync (activate, sync, delete, list)
• Query by timestamp range
• Cursor-based pagination for large result sets

Prerequisites

To use this MCP server, you need:

1. Register at Crypto APIs
2. Generate an API key from your dashboard

Installation

npm install @cryptoapis-io/mcp-address-history

Or install all Crypto APIs MCP servers: npm install @cryptoapis-io/mcp

Usage

# Run with API key
npx @cryptoapis-io/mcp-address-history --api-key YOUR_API_KEY

# Or use environment variable
export CRYPTOAPIS_API_KEY=YOUR_API_KEY
npx @cryptoapis-io/mcp-address-history

Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows):

{
  "mcpServers": {
    "cryptoapis-address-history": {
      "command": "npx",
      "args": ["-y", "@cryptoapis-io/mcp-address-history"],
      "env": {
        "CRYPTOAPIS_API_KEY": "your_api_key_here"
      }
    }
  }
}

Cursor

Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):

{
  "mcpServers": {
    "cryptoapis-address-history": {
      "command": "npx",
      "args": ["-y", "@cryptoapis-io/mcp-address-history"],
      "env": {
        "CRYPTOAPIS_API_KEY": "your_api_key_here"
      }
    }
  }
}

MCP Inspector

npx @modelcontextprotocol/inspector npx @cryptoapis-io/mcp-address-history --api-key YOUR_API_KEY

n8n

1. Start the server in HTTP mode:

   npx @cryptoapis-io/mcp-address-history --transport http --port 3000 --api-key YOUR_API_KEY
   

2. In your n8n workflow, add an AI Agent node
3. Under Tools, add an MCP Client Tool and set the URL to http://localhost:3000/mcp

All servers default to port 3000. Use --port to assign different ports when running multiple servers.

Available Tools

manage_address

Manage synced addresses for historical data access. Supports all EVM and UTXO blockchains.

Actions:

Action	Description
sync	Sync a new address for historical data
activate	Activate a previously synced address
delete	Delete a synced address
list	List all synced addresses

evm_address_history

Query EVM address full history (requires synced address).

Actions:

Action	Description
get-statistics	Get address statistics
list-transactions	List all transactions
list-transactions-by-timestamp	List transactions from a timestamp
list-token-transfers	List token transfers
list-internal-transactions	List internal transactions
list-tokens	List tokens held by address

Supported Blockchains: ethereum, ethereum-classic, binance-smart-chain, polygon, tron

Note: get-statistics and list-transactions-by-timestamp only support Ethereum and Ethereum Classic. Other actions support all five blockchains.

utxo_address_history

Query UTXO address full history (requires synced address).

Actions:

Action	Description	Pagination
get-statistics	Get address statistics	-
list-transactions	List all transactions	cursor
list-transactions-by-timestamp	List transactions from timestamp	cursor
list-unspent-outputs	List unspent outputs (UTXOs)	offset

Supported Blockchains: bitcoin, bitcoin-cash, litecoin, dogecoin, dash, zcash

Pagination

Most endpoints use cursor-based pagination:

// Response
{
  "items": [...],
  "limit": 10,
  "hasMore": true,
  "nextStartingAfter": "abc123"
}

Use nextStartingAfter value as startingAfter parameter in the next request.

Exception: list-unspent-outputs uses offset pagination:

// Response
{
  "items": [...],
  "limit": 10,
  "offset": 0,
  "total": 150
}

Configuration

For stdio transport, provide the API key at startup via CLI argument or environment variable. For HTTP transport, it can also be provided per-request via x-api-key header (see HTTP API Key Modes).

1. Command-line argument (recommended):

   npx @cryptoapis-io/mcp-address-history --api-key {your_api_key}
   

2. Environment variable:

   export CRYPTOAPIS_API_KEY={your_api_key}
   

CLI Arguments

Argument	Description
--api-key	Crypto APIs API key
--transport	Transport type: stdio (default) or http
--host	HTTP host (default: 0.0.0.0)
--port	HTTP port (default: 3000)
--path	HTTP path (default: /mcp)
--stateless	Enable stateless mode for HTTP

HTTP API Key Modes

When using HTTP transport, the server supports two API key modes:

• With --api-key: The key is used for all requests. x-api-key request headers are ignored.
• Without --api-key: Each request must include an x-api-key header with a valid Crypto APIs key. This enables hosting a public server where each user provides their own key.

# Per-request key mode (multi-tenant)
npx @cryptoapis-io/mcp-address-history --transport http --port 3000
# Clients send x-api-key header with each request

Stdio transport always requires an API key at startup.

Important: API Key Required

Warning: Making requests without a valid API key — or with an incorrect one — may result in your IP being banned from the Crypto APIs ecosystem. Always ensure a valid API key is configured before starting any server.

Remote MCP Server

Crypto APIs provides an official remote MCP server with all tools available via HTTP Streamable transport at https://ai.cryptoapis.io/mcp. Pass your API key via the x-api-key header — no installation required.

License

MIT