MCPs
Chainlist MCP Server

Chainlist MCP Server

Fast, structured EVM chain info for AI agents via the Model Context Protocol

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Chainlist MCP Server enables AI agents and MCP-compatible clients to quickly access and search verified EVM blockchain data. It sources data from Chainlist.org and provides efficient REST-like tools for retrieving details by chain ID or searching by keyword. The server outputs structured Markdown responses, supporting AI context integration with tabulated RPC endpoints and explorers for clarity.

Key Features

Exposes tools via the Model Context Protocol (MCP)

Fetches and caches verified EVM chain information from Chainlist.org

Provides efficient search by chain ID and keyword

Delivers Markdown-formatted, tabulated responses for easy parsing and display

Minimizes requests with smart cache management

Configurable server suitable for integration with Claude Desktop and MCP clients

Supports flexible, regex-based keyword matching

Python 3.10+ compatible and uv dependency management

Ready-to-use example prompts and responses

Aggregates limited- or full-chain search results by user-defined limits

Use Cases

Supplying structured blockchain data to AI agents and chatbots

Enabling model-context-aware search and retrieval of EVM chain info

Populating digital assistants or wallets with up-to-date chain configuration details

Automating RPC endpoint discovery for network monitoring tools

Integrating with development environments that need reliable chain metadata

Supporting AI-driven dApp deployment or testing routines

Simplifying chain-explorer link provisioning for block and transaction lookups

Streamlining onboarding for new chain integrations in multi-chain apps

Enhancing technical documentation with standardized, embeddable chain info

Accelerating research and analysis for blockchain-coverage platforms

README

Chainlist MCP Server

An MCP server that gives AI agents fast access to verified EVM chain information, including RPC URLs, chain IDs, explorers, and native tokens — sourced from Chainlist.org.

Features

Efficient Data Fetching: Caches Chainlist API data to minimize requests.
Flexible Search: Case-insensitive keyword matching using regex for getChainsByKeyword.
Structured Output: Markdown responses with tabulated rpc and explorers for readability.

Installation

Prerequisites

Python: Version 3.10 or higher.
uv: Recommended for managing Python projects and dependencies (install via pip install uv or follow uv documentation).

Steps

Clone the Repository:

bash

git clone https://github.com/kukapay/chainlist-mcp.git
cd chainlist-mcp

Install Dependencies:
bash
```
uv sync
```

Installing to Claude Desktop:

Install the server as a Claude Desktop application:

bash

uv run mcp install cli.py --name "Chainlist MCP"

Configuration file as a reference:

json

{
   "mcpServers": {
       "Chainlist MCP": {
           "command": "uv",
           "args": [ "--directory", "/path/to/chainlist-mcp", "run", "main.py" ] 
       }
   }
}

Replace /path/to/chainlist-mcp with your actual installation path.

Usage

The server exposes two tools via the MCP protocol, accessible through MCP-compatible clients or the MCP Inspector.

Tools

`getChainById`

Description: Retrieves details of a blockchain by its chain ID.
Parameters:
- chain_id (integer): The unique identifier of the blockchain (e.g., 1 for Ethereum Mainnet).
Returns: A Markdown string with chain details or an error message.

Example Prompt (in an MCP client):

Get the details for the blockchain with chain ID 1.

Example Response:

markdown

**Chain Details**
- **Name**: Ethereum Mainnet
- **Chain ID**: 1
- **Native Currency**: Ether (ETH, 18 decimals)
- **TVL**: 134376951329.85631
**RPC Endpoints**:
| URL                                          | Tracking |
|----------------------------------------------|----------|
| https://eth.llamarpc.com                     | none     |
| https://go.getblock.io/...                   | none     |
...
**Explorers**:
| Name       | URL                        | Standard |
|------------|----------------------------|----------|
| etherscan  | https://etherscan.io       | EIP3091  |
...

`getChainsByKeyword`

Description: Searches for blockchains by keyword (case-insensitive partial match).
Parameters:
- keyword (string): The keyword or partial name to search (e.g., 'eth').
- limit (integer, optional): Maximum number of results (default: 5).
Returns: A Markdown string listing up to limit matching chains or an error message.

Example Prompt (in an MCP client):

Find blockchains with 'eth' in their name, limit to 2 results.

Example Response:

markdown

**Matching Chains**

### Chain 1
**Chain Details**
- **Name**: Ethereum Mainnet
- **Chain ID**: 1
- **Native Currency**: Ether (ETH, 18 decimals)
- **TVL**: 134376951329.85631
**RPC Endpoints**:
| URL                                          | Tracking |
|----------------------------------------------|----------|
| https://eth.llamarpc.com                     | none     |
...
**Explorers**:
| Name       | URL                        | Standard |
|------------|----------------------------|----------|
| etherscan  | https://etherscan.io       | EIP3091  |
...

### Chain 2
**Chain Details**
- **Name**: Ethereum Goerli
- **Chain ID**: 5
- **Native Currency**: Ether (ETH, 18 decimals)
- **TVL**: N/A
**RPC Endpoints**:
| URL                                          | Tracking |
|----------------------------------------------|----------|
| https://goerli.infura.io/...                 | yes      |
...
**Explorers**:
| Name       | URL                        | Standard |
|------------|----------------------------|----------|
| etherscan  | https://goerli.etherscan.io | EIP3091  |
...

License

This project is licensed under the MIT License. See the LICENSE file for details.

Star History

Repository Owner

kukapay

User

Repository Details

Language Python

Default Branch main

Size 17 KB

Contributors 1

License MIT License

MCP Verified Nov 12, 2025

Programming Languages

Python

100%

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Chainlist MCP Server

Key Features

Use Cases

README

Chainlist MCP Server

Features

Installation

Prerequisites

Steps

Usage

Tools

`getChainById`

`getChainsByKeyword`

License

Star History

Repository Owner

Repository Details

Programming Languages

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