ListSmith

io.github.QuincyGB/list-smith-mcp

MCP server for ListSmith — x402 listing grades ($0.10) and repairs ($0.50) on Base

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "list-smith-mcp": {
      "command": "uvx",
      "args": [
        "list-smith-mcp"
      ],
      "env": {
        "AGENT_PRIVATE_KEY": "<your AGENT_PRIVATE_KEY>",
        "LIST_SMITH_GRADE_MAX_AMOUNT_UNITS": "100000",
        "LIST_SMITH_FIX_MAX_AMOUNT_UNITS": "500000"
      }
    }
  }
}
Environment variables
  • AGENT_PRIVATE_KEYsecretEVM private key (0x...) of a wallet holding USDC on Base. Used locally to sign the x402 EIP-3009 authorization. For paid calls.
  • LIST_SMITH_GRADE_MAX_AMOUNT_UNITSSpend guard per grade call in USDC micro-units (default 100000 = $0.10, the known price). The client refuses to sign anything priced above it.
  • LIST_SMITH_FIX_MAX_AMOUNT_UNITSSpend guard per fix call in USDC micro-units (default 500000 = $0.50, the known price). The client refuses to sign anything priced above it.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.1.2
Registry
active
Published
10/25/2026

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Add the badge to your site

Show visitors that ListSmith is listed here — it’s also the link we check for a free listing.

ListSmith — listed on Serverdex

HTML — for your website

<a href="https://serverdex.io/server/io-github-quincygb-list-smith-mcp?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="ListSmith — listed on Serverdex" width="123" height="40" loading="lazy"></a>

Recommended. A dofollow link from your own domain is the one that counts for search engines, and it's the link we check for a free listing.

Markdown — for your README

[![ListSmith — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/io-github-quincygb-list-smith-mcp?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.