Base Wallet Toolkit

Base chain wallet tools — balances, gas, tokens, allowances, ENS resolution.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "base-wallet-toolkit": {
      "command": "npx",
      "args": [
        "-y",
        "base-wallet-toolkit"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

base-wallet-toolkit-mcp

An MCP server for AI agents to interact with Base chain wallets. Check balances, estimate gas, inspect tokens, verify allowances, and more.

Install

Terminal

npx -y base-wallet-toolkit-mcp

Tools

Tool	Description
`check_balances`	Get ETH + ERC-20 token balances for any wallet
`get_gas_estimate`	Estimate gas cost for a transaction on Base
`get_token_info`	Get ERC-20 token details (name, symbol, supply, decimals)
`check_allowance`	Check token approval/allowance status
`get_base_gas_price`	Get current Base gas price and typical tx costs
`resolve_address`	Resolve ENS name to address (or reverse lookup)
`get_tx_status`	Check transaction status and details by hash

Setup

Add to your MCP client config (Claude Code, Cursor, etc.):

config.json

{
  "mcpServers": {
    "base-wallet-toolkit": {
      "command": "npx",
      "args": ["-y", "base-wallet-toolkit-mcp"]
    }
  }
}

No API keys required. All tools are read-only and use public Base RPC.

Use Cases

Portfolio tracking: Check ETH and token balances across wallets
Pre-trade checks: Verify allowances before swaps, estimate gas costs
Token research: Look up any ERC-20 token details on Base
Transaction monitoring: Check if a tx confirmed, reverted, or is pending
ENS resolution: Convert between ENS names and addresses
Gas optimization: Monitor Base gas prices to time transactions

Chain

Network: Base mainnet (chainId 8453)
RPC: Uses public Base RPC by default, configurable via RPC_URL env var
ENS: Resolves via Ethereum mainnet (configurable via ETH_RPC_URL)

License

MIT

Read the full README →View source on GitHub →

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Frequently Asked Questions about Base Wallet Toolkit

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "base-wallet-toolkit": { "command": "npx", "args": ["-y", "base-wallet-toolkit"] } }

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Technical Specs & Signals

CategoryFinance & Fintech

27Quality signal: Emerging · 27/100How this signal is calculated ▾

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More in 💰 Finance & Fintech →Best MCP servers for Finance & Fintech →Alternatives to Base Wallet Toolkit →Install in Claude Desktop Install in Cursor Install in VS Code