io.github.CarbonCashmere/x402-mcp MCP Server

Name: io.github.CarbonCashmere/x402-mcp MCP Server
Author: io.github.CarbonCashmere

io.github.CarbonCashmere/x402-mcp

Repository Registry

What is the io.github.CarbonCashmere/x402-mcp MCP server?

177 crypto market intel endpoints with auto x402 USDC micropayments from your AI agent

How to install io.github.CarbonCashmere/x402-mcp

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

EVM_PRIVATE_KEY
secret
0x-hex private key for Base/Polygon/Arbitrum USDC payments (dedicated wallet)
SVM_PRIVATE_KEY
secret
base58 Solana keypair for Solana USDC payments (optional)
X402_TOOL_LIMIT
Max tools exposed (1-177, default 100)

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@carbon-cashmere/x402-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<YOUR_EVM_PRIVATE_KEY>",
        "SVM_PRIVATE_KEY": "<YOUR_SVM_PRIVATE_KEY>",
        "X402_TOOL_LIMIT": "<YOUR_X402_TOOL_LIMIT>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@carbon-cashmere/x402-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<YOUR_EVM_PRIVATE_KEY>",
        "SVM_PRIVATE_KEY": "<YOUR_SVM_PRIVATE_KEY>",
        "X402_TOOL_LIMIT": "<YOUR_X402_TOOL_LIMIT>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@carbon-cashmere/x402-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<YOUR_EVM_PRIVATE_KEY>",
        "SVM_PRIVATE_KEY": "<YOUR_SVM_PRIVATE_KEY>",
        "X402_TOOL_LIMIT": "<YOUR_X402_TOOL_LIMIT>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "x402-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@carbon-cashmere/x402-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<YOUR_EVM_PRIVATE_KEY>",
        "SVM_PRIVATE_KEY": "<YOUR_SVM_PRIVATE_KEY>",
        "X402_TOOL_LIMIT": "<YOUR_X402_TOOL_LIMIT>"
      }
    }
  }
}

Claude Code

claude mcp add x402-mcp --env EVM_PRIVATE_KEY=<YOUR_EVM_PRIVATE_KEY> --env SVM_PRIVATE_KEY=<YOUR_SVM_PRIVATE_KEY> --env X402_TOOL_LIMIT=<YOUR_X402_TOOL_LIMIT> -- npx -y @carbon-cashmere/x402-mcp