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mcp/harbor
VS Code

x402 Seller for VS Code

io.github.entreprisedaney33-rgb/x402-seller-mcp

Pay-per-call MCP tools (crypto/DeFi data, web reading, AI tasks) in USDC over x402 on Base.

client:VS Code transport:stdio runtime:npm

Install x402 Seller in VS Code

.vscode/mcp.json 

{
  "inputs": [
    {
      "type": "promptString",
      "id": "buyer-private-key",
      "description": "BUYER_PRIVATE_KEY",
      "password": true
    },
    {
      "type": "promptString",
      "id": "x402-origin",
      "description": "X402_ORIGIN",
      "password": true
    }
  ],
  "servers": {
    "x402-seller-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "x402-seller-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "${input:buyer-private-key}",
        "X402_ORIGIN": "${input:x402-origin}"
      }
    }
  }
}

VS Code prompts for each input the first time the server starts, so no secret is written to the file. VS Code docs

x402 Seller in other clients

x402 Seller MCP server