io.github.CarbonCashmere/x402-mcp

io.github.CarbonCashmere/x402-mcp

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

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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": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@carbon-cashmere/x402-mcp@0.2.2"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<your EVM_PRIVATE_KEY>",
        "SVM_PRIVATE_KEY": "<your SVM_PRIVATE_KEY>",
        "X402_TOOL_LIMIT": "100"
      }
    }
  }
}
Environment variables
  • EVM_PRIVATE_KEYsecret0x-hex private key for Base/Polygon/Arbitrum USDC payments (dedicated wallet)
  • SVM_PRIVATE_KEYsecretbase58 Solana keypair for Solana USDC payments (optional)
  • X402_TOOL_LIMITMax tools exposed (1-177, default 100)

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

Category
Finance
Version
0.2.2
Registry
active
Published
5/20/2026

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