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mcp/harbor
Claude Desktop

x402-market for Claude Desktop

io.github.asaishota/mcp-server

Let AI agents pay-per-call for any HTTP API via x402 on Base mainnet. One tool: pay_and_call.

client:Claude Desktop transport:stdio runtime:npm

Install x402-market in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@x402-market/mcp-server"
      ],
      "env": {
        "MARKET_API_URL": "<MARKET_API_URL>",
        "MCP_BUYER_PRIVATE_KEY": "<MCP_BUYER_PRIVATE_KEY>",
        "BASE_RPC_URL": "<BASE_RPC_URL>",
        "BASE_CHAIN_ID": "<BASE_CHAIN_ID>",
        "MCP_MAX_PRICE": "<MCP_MAX_PRICE>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

x402-market in other clients

x402-market MCP server