web3-mcp-server

fetch_balance

Retrieve wallet balances across EVM-compatible chains by specifying the wallet address and chain ID using this utility.

Instructions

Get the balance of a wallet

Input Schema

Name	Required	Description	Default
`chainId`	Yes
`walletAddress`	Yes

Input Schema (JSON Schema)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "properties": {
    "chainId": {
      "type": "number"
    },
    "walletAddress": {
      "pattern": "^0x.*",
      "type": "string"
    }
  },
  "required": [
    "walletAddress",
    "chainId"
  ],
  "type": "object"
}

Install Server

HTTP connection URL

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