MCP Server MCP

HPP x402 MCP Bridge

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MCP bridge for autonomous x402 payments in HPP USDC.e — discover and pay for services per call.

Homepage Verified source GitHub

Install

npx -y @hpp-io/[email protected]

Configuration Example

{
  "remotes": [],
  "packages": [
    {
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "identifier": "@hpp-io/x402-mcp-bridge",
      "version": "0.1.18",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Delegate EOA private key used to sign payments. Auto-created in the OS keychain if unset.",
          "isSecret": true,
          "name": "DELEGATE_PRIVATE_KEY"
        },
        {
          "description": "Target network: eip155:181228 (HPP Sepolia, default) or eip155:190415 (HPP Mainnet).",
          "name": "HPP_NETWORK"
        },
        {
          "description": "Optional upstream MCP server to proxy. Omit to expose only the local tools.",
          "name": "RESOURCE_SERVER_URL"
        },
        {
          "description": "Safe address for governance (Safe) mode. Set together with ALLOWANCE_MODULE_ADDRESS.",
          "name": "SAFE_ADDRESS"
        },
        {
          "description": "Safe AllowanceModule address for governance (Safe) mode. Set together with SAFE_ADDRESS.",
          "name": "ALLOWANCE_MODULE_ADDRESS"
        }
      ]
    }
  ]
}

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