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RPC MCP Server

RPC MCP Server

Local
github.com/karacurtDeveloper Tools1Updated 81w ago
Repository

About RPC MCP Server

RPC MCP Server gives AI models a standard interface to EVM-compatible blockchains. It is for users who need to read chain data or call contracts through a configured RPC endpoint.

Key features

  1. 01Connect to EVM-compatible RPC endpoints
  2. 02Query the current block number
  3. 03Check account balances and transaction counts
  4. 04Retrieve block and transaction details
  5. 05Make contract calls

Use cases

  1. 01Check the latest block on an EVM network
  2. 02Inspect an account balance and nonce
  3. 03Look up a transaction or block
  4. 04Read data through a smart contract call

MCP support

The MCP server exposes EVM RPC operations as tools for clients to query blocks, accounts, and transactions, and to make contract calls.

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config
{
  "mcpServers": {
    "evm-rpc": {
      "command": "npx",
      "args": [
        "-y",
        "rpc-mcp"
      ],
      "env": {
        "RPC_URL": "<RPC_URL>",
        "API_URL": "<API_URL>"
      }
    }
  }
}
Run commandnpx -y rpc-mcp
Environment variables to set
RPC_URL
API_URL

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages
npmrpc-mcp

Tools

No tool list yet

Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.

Details

From the project README

RPC MCP Server

This is a Model Context Protocol (MCP) server implementation for interacting with any EVM-compatible RPC endpoint. It provides a standardized interface for AI models to interact with Ethereum and EVM-compatible blockchains.

Features

  • Support for any EVM-compatible RPC endpoint
  • Get current block number
  • Check account balances
  • Get transaction counts (nonces)
  • Retrieve block information
  • Get transaction details
  • Make contract calls

Prerequisites

  • Node.js (v16 or higher)
  • npm (Node Package Manager)

Installation

  1. Clone the repository:
git clone <repository-url>
cd rpc-mcp
  1. Install dependencies:
npm install
  1. Build the project:
npm run build
  1. Install globally:
npm install -g .

This global installation makes the rpc-mcp command available system-wide, which is required for Cursor to find and execute the MCP server.

Configuration

The server uses the following environment variable:

Cursor MCP Configuration

Add the following to your mcp.json file in your Cursor (Settings > MCP > Add New Global Server):

{
  "mcpServers": {
    "rpc-mcp": {
      "command": "npx",
      "args": ["-y", "rpc-mcp"],
      "env": {
        "RPC_URL": "YOUR_RPC_ENDPOINT",
        "API_URL": "YOUR_API_ENDPOINT"
      }
    }
  } 
}

This configuration will make the following tools available in Cursor:

  • eth_blockNumber
  • eth_getBalance
  • eth_getTransactionCount
  • eth_getBlockByNumber
  • eth_getTransactionByHash
  • eth_call
  • trace_transaction

Comments

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An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.