3xpl MCP

The MCP server implementation of the 3xpl API allows LLMs to interact with data from 48 blockchains through the JSON API, providing various blockchain query and aggregation tools.

Finance Developer tools #Blockchain API #Data Aggregation #MCP Service #Multi-Chain Interaction .Python

rating : 2.5 points

downloads : 4.9K

update time : 2025-04-29

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What is the 3xpl API MCP Server?

The 3xpl API MCP Server is a bridge that allows language models to access and interact with blockchain data across 48 different networks. It provides structured access to blockchain information through a standardized protocol.

How to use the 3xpl API MCP Server?

You can install the server locally and configure it with your API key to start querying blockchain data. The server provides various tools for different blockchain operations.

Use Cases

Ideal for blockchain analytics, wallet monitoring, transaction tracking, and developing blockchain-based applications that require real-time data from multiple networks.

Key Features

Multi-Chain Support

Access data from 48 different blockchain networks through a single interface

ENS Domain Resolution

Convert human-readable ENS domains to blockchain addresses

Cross-Chain Detection

Identify which blockchains contain a specific transaction or address

Fee Analytics

Get average transaction fees in USD for any supported blockchain

Mempool Monitoring

Track unconfirmed transactions in real-time

Advantages

Single interface for multiple blockchains

Real-time and historical data access

Developer-friendly JSON API

Comprehensive blockchain analytics tools

Limitations

Sandbox API has rate limits

Requires API key for full functionality

Some advanced features may require technical knowledge

Getting Started

Clone the Repository

Download the server code to your local machine

Set Up Environment

Create and activate a virtual environment

Install Dependencies

Install required packages

Configure API Key

Add your 3xpl API key to the configuration

Example Use Cases

Resolving ENS Domains

Convert human-readable ENS names to wallet addresses for transactions

Checking Transaction Fees

Compare average transaction costs across different blockchains

Monitoring Mempool Activity

Track pending transactions before they are confirmed

Frequently Asked Questions

Do I need an API key to use this service?

What's the difference between events and transactions?

How current is the blockchain data?

Can I use this for commercial applications?

Additional Resources

3xpl API Documentation

Official documentation for the 3xpl JSON API

GitHub Repository

Source code and issue tracker

MCP Protocol Overview

Learn about Model Context Protocol

🚀 3xpl.com JSON API MCP Server

This is an example implementation of the 3xpl API in the form of Model Context Protocol (MCP). It allows LLMs to interact with data on 48 blockchains. This repository can also serve as an example for using the 3xpl JSON API, and specific details can be found in the code.

🚀 Quick Start

✨ Features

An example implementation of the 3xpl API in MCP format.
Enables LLMs to interact with data on 48 blockchains.
Serves as an example for using the 3xpl JSON API.

📦 Installation

# Clone the repository
git clone https://github.com/exekerey/3xpl-mcp.git
cd 3xpl-mcp

# Create and activate a virtual environment
uv venv 
source .venv/bin/activate

# Install dependencies
uv pip install -e .

MCP Configuration:

{
  "mcpServers": {
    "3xpl_API": {
      "command": "uv",
      "args": [
        "run",
        "--with",
        "mcp[cli]",
        "mcp",
        "run",
        "{:path_to_cloned}/3xpl_mcp/main.py"
      ],
      "env": {
        "THREEXPL_API_KEY": ""
      }
    }
  }
}

⚠️ Important Note

Please obtain your API key from 3xpl to use the main API. If the THREEXPL_API_KEY field in the configuration file is left blank, the MCP server will use the sandbox API, which has rate limits.

📚 Documentation

Available Tools List

Property	Details
resolve_ens_domain	Resolve an ENS domain name to a regular address.
detect_blockchains	Get the list of blockchains present on a specified transaction/address.
get_latest_block	Get the latest block height of a specified blockchain.
get_average_fee_24h_usd	Get the average transaction fee (in USD) of a specified blockchain in the past 24 hours.
get_mempool_events_count	Get the number of unconfirmed events (transfers, inputs/outputs, not transactions) in the current mempool of a specified blockchain.
get_events_count_24h	Get the number of events (transfers, inputs/outputs, not entire transactions) of a specified blockchain in the past 24 hours.
get_block_overview	Extract a brief summary of a block in a specified blockchain.
get_address_overview	Extract a brief summary of an address in a specified blockchain.
get_transaction_overview	Extract a brief summary of a transaction in a specified blockchain (to be improved).
list_blockchains_and_modules	Get the list of all blockchains and their modules, along with module descriptions.
aggregate_block_transactions	Aggregate transactions in a specified block.
aggregate_transaction_transfers	Aggregate individual transfers in a transaction.
aggregate_address_balances	Aggregate balance information of an address (function to be improved).
aggregate_address_transactions	Aggregate confirmed transaction records of a specified address.
aggregate_address_mempool	Aggregate unconfirmed transaction records of a specified address.

Available Prompts

Property	Details
get_blockchain_info	Enable the LLM to dig deeper into the data to provide the most comprehensive answers.

⚠️ Notes

⚠️ Important Note

If you encounter any issues, make sure to set up the environment and dependencies correctly according to the steps.

Ensure the security of your API key and do not expose or share it with others.