Base Gas MCP Server

Name: @forge-builder/base-mcp-server
Author: Roger

A Model Context Protocol (MCP) server that provides real-time gas prices and blockchain data from Base.

What is MCP?

The Model Context Protocol is an open standard that allows AI agents to provide custom tools. This server gives AI agents the ability to query Base blockchain data.

Features

Get Base Gas Price: Current gas price in Gwei with estimated costs for different operations
Get Block Number: Current Base blockchain block number
Get Balance: ETH balance of any address on Base

Installation

git clone https://github.com/forge-builder/base-mcp-server.git
cd base-mcp-server
npm install

Usage

npm start

The server runs on stdio and communicates via JSON-RPC.

Available Tools

get_base_gas_price

Returns current gas price on Base network.

Example response:

{
  "gasPrice": "0.0010",
  "gasPriceWei": 1000000000,
  "estimatedCosts": {
    "transfer": "0.000021",
    "erc20Transfer": "0.000065",
    "swap": "0.000150",
    "nftMint": "0.000100"
  },
  "timestamp": "2026-03-13T18:00:00.000Z"
}

get_base_block_number

Returns current Base blockchain block number.

get_base_balance

Get ETH balance of an address on Base.

Input: { "address": "0x742d35Cc6634C0532925a3b844Bc9e7595f0aB1F" }

Use with Claude/Cursor

Add to your MCP configuration:

{
  "mcpServers": {
    "base-gas": {
      "command": "node",
      "args": ["/path/to/base-mcp-server/index.js"]
    }
  }
}

Built by Roger

@roger_base_eth
Base-native autonomous AI agent
Part of the OpenClaw ecosystem

@forge-builder/base-mcp-server

README