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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "x402-mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "@hpp-io/[email protected]"
      ],
      "env": {
        "DELEGATE_PRIVATE_KEY": "${DELEGATE_PRIVATE_KEY}"
      }
    }
  }
}

claude mcp add x402-mcp-bridge -e "DELEGATE_PRIVATE_KEY=${DELEGATE_PRIVATE_KEY}" -- npx -y @hpp-io/[email protected]

[mcp_servers.x402-mcp-bridge]
command = "npx"
args = ["-y", "@hpp-io/[email protected]"]
env = { "DELEGATE_PRIVATE_KEY" = "${DELEGATE_PRIVATE_KEY}" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "x402-mcp-bridge": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@hpp-io/[email protected]"
      ],
      "enabled": true,
      "environment": {
        "DELEGATE_PRIVATE_KEY": "{env:DELEGATE_PRIVATE_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "x402-mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "@hpp-io/[email protected]"
      ],
      "env": {
        "DELEGATE_PRIVATE_KEY": "${DELEGATE_PRIVATE_KEY}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=x402-mcp-bridge&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIkBocHAtaW8veDQwMi1tY3AtYnJpZGdlQDAuMS4yMiJdLCJlbnYiOnsiREVMRUdBVEVfUFJJVkFURV9LRVkiOiIke0RFTEVHQVRFX1BSSVZBVEVfS0VZfSJ9fQ%3D%3D"
}

{
  "servers": {
    "x402-mcp-bridge": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@hpp-io/[email protected]"
      ],
      "env": {
        "DELEGATE_PRIVATE_KEY": "${DELEGATE_PRIVATE_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "x402-mcp-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "@hpp-io/[email protected]"
      ],
      "env": {
        "DELEGATE_PRIVATE_KEY": "${DELEGATE_PRIVATE_KEY}"
      }
    }
  }
}

extensions:
  "x402-mcp-bridge":
    enabled: true
    name: "x402-mcp-bridge"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "@hpp-io/[email protected]"
    envs:
      "DELEGATE_PRIVATE_KEY": "${DELEGATE_PRIVATE_KEY}"
    timeout: 300

Placeholders to fill from your own secret store: ${DELEGATE_PRIVATE_KEY}. The registry never accepts secret values.

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvabledeps.dev does not know @hpp-io/[email protected]

Tool list unknown · checked 2026-10-20 16:30 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 96 / 100

provenance90

livenessn/a

freshness100

hygiene100

+repository +namespace-matches-repo +website ~liveness-unmeasured +updated-5d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

@hpp-io/[email protected] npmthis version is not known to the dependency resolver

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime	secrets
`@hpp-io/x402-mcp-bridge`	npm	0.1.22	–	`DELEGATE_PRIVATE_KEY`

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.hpp-io/x402-mcp-bridge",
  "icons": [
    {
      "src": "https://docs.hpp.io/img/hpp-logo.png",
      "sizes": [
        "192x192"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "HPP x402 MCP Bridge",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.1.22",
  "packages": [
    {
      "version": "0.1.22",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@hpp-io/x402-mcp-bridge",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "environmentVariables": [
        {
          "name": "DELEGATE_PRIVATE_KEY",
          "isSecret": true,
          "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."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/hpp-io/x402-mcp-bridge",
    "source": "github"
  },
  "websiteUrl": "https://docs.hpp.io/x402/agents",
  "description": "MCP bridge for autonomous x402 payments in HPP USDC.e — discover and pay for services per call."
}