HPP x402 MCP Bridge

An MCP bridge that enables AI agents to autonomously discover and pay for services using x402 protocol on HPP. It provides tools for wallet management, service discovery, and payment execution within a user-defined spend cap, supporting hosts like Claude Desktop, Cursor, and Windsurf.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by HPP

You need:Node.js 20+ ( node -v ). Install from nodejs.org , brew install node , or nvm .

Vendor documentation

What you can do with it

Discover x402 services on HPP
Pay for services per call within a spend cap
Report wallet address and balance
Call x402 URLs directly

Source and maintenance

Community listingRegistry 0.1.23

mcp-registry: io.github.hpp-io/x402-mcp-bridge@0.1.23 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:59 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@hpp-io/x402-mcp-bridge 0.1.23

npm

@hpp-io/x402-mcp-bridge package definition

{
  "version": "0.1.23",
  "transport": "stdio",
  "identifier": "@hpp-io/x402-mcp-bridge",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "DELEGATE_PRIVATE_KEY",
      "description": "Delegate EOA private key used to sign payments. Auto-created in the OS keychain if unset."
    },
    {
      "name": "HPP_NETWORK",
      "description": "Target network: eip155:181228 (HPP Sepolia, default) or eip155:190415 (HPP Mainnet)."
    },
    {
      "name": "RESOURCE_SERVER_URL",
      "description": "Optional upstream MCP server to proxy. Omit to expose only the local tools."
    },
    {
      "name": "SAFE_ADDRESS",
      "description": "Safe address for governance (Safe) mode. Set together with ALLOWANCE_MODULE_ADDRESS."
    },
    {
      "name": "ALLOWANCE_MODULE_ADDRESS",
      "description": "Safe AllowanceModule address for governance (Safe) mode. Set together with SAFE_ADDRESS."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "hpp-x402-mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "@hpp-io/x402-mcp-bridge@0.1.23"
      ],
      "env": {
        "DELEGATE_PRIVATE_KEY": "<YOUR_DELEGATE_PRIVATE_KEY>",
        "HPP_NETWORK": "<YOUR_HPP_NETWORK>",
        "RESOURCE_SERVER_URL": "<YOUR_RESOURCE_SERVER_URL>",
        "SAFE_ADDRESS": "<YOUR_SAFE_ADDRESS>",
        "ALLOWANCE_MODULE_ADDRESS": "<YOUR_ALLOWANCE_MODULE_ADDRESS>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "hpp-x402-mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "@hpp-io/x402-mcp-bridge@0.1.23"
      ],
      "env": {
        "DELEGATE_PRIVATE_KEY": "<YOUR_DELEGATE_PRIVATE_KEY>",
        "HPP_NETWORK": "<YOUR_HPP_NETWORK>",
        "RESOURCE_SERVER_URL": "<YOUR_RESOURCE_SERVER_URL>",
        "SAFE_ADDRESS": "<YOUR_SAFE_ADDRESS>",
        "ALLOWANCE_MODULE_ADDRESS": "<YOUR_ALLOWANCE_MODULE_ADDRESS>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "hpp-x402-mcp-bridge": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@hpp-io/x402-mcp-bridge@0.1.23"
      ],
      "env": {
        "DELEGATE_PRIVATE_KEY": "<YOUR_DELEGATE_PRIVATE_KEY>",
        "HPP_NETWORK": "<YOUR_HPP_NETWORK>",
        "RESOURCE_SERVER_URL": "<YOUR_RESOURCE_SERVER_URL>",
        "SAFE_ADDRESS": "<YOUR_SAFE_ADDRESS>",
        "ALLOWANCE_MODULE_ADDRESS": "<YOUR_ALLOWANCE_MODULE_ADDRESS>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "hpp-x402-mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "@hpp-io/x402-mcp-bridge@0.1.23"
      ],
      "env": {
        "DELEGATE_PRIVATE_KEY": "<YOUR_DELEGATE_PRIVATE_KEY>",
        "HPP_NETWORK": "<YOUR_HPP_NETWORK>",
        "RESOURCE_SERVER_URL": "<YOUR_RESOURCE_SERVER_URL>",
        "SAFE_ADDRESS": "<YOUR_SAFE_ADDRESS>",
        "ALLOWANCE_MODULE_ADDRESS": "<YOUR_ALLOWANCE_MODULE_ADDRESS>"
      }
    }
  }
}

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