Koskamo

x402 List MCP

An MCP server that provides an agent-first open directory of x402 protocol services, allowing AI agents to find, vet, and pay for APIs via the HTTP 402 standard. It exposes machine-readable JSON data including uptime metrics, on-chain settlement volume, and pricing for integration.

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Package and access

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

x402 List MCP logo, by Cosimo MiccolisVendor evidenceLocal stdioSource reviewed; not executedOperated by Cosimo Miccolis
Vendor documentation

What you can do with it

  • Find and vet x402 payment APIs before an agent pays one
  • Check uptime and on-chain volume for listed services
  • Access machine-readable JSON data for AI agent integration

Source and maintenance

Vendor evidenceRegistry 0.5.3
mcp-registry: com.x402-list/x402-list-mcp@0.5.3Source repositoryProject website
Maintenance checked

Packages and installation

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

x402-list-mcp 0.5.3

npm
x402-list-mcp package definition
{
  "version": "0.5.3",
  "transport": "stdio",
  "identifier": "x402-list-mcp",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "X402_LIST_BASE_URL",
      "format": "string",
      "default": "https://x402-list.com",
      "description": "API base URL. The /api/v1 prefix is appended automatically."
    },
    {
      "name": "X402_LIST_TIMEOUT_MS",
      "format": "number",
      "default": "15000",
      "description": "Per-request timeout in milliseconds."
    }
  ]
}

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.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "x402-list-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402-list-mcp@0.5.3"
      ],
      "env": {
        "X402_LIST_BASE_URL": "<YOUR_X402_LIST_BASE_URL>",
        "X402_LIST_TIMEOUT_MS": "<YOUR_X402_LIST_TIMEOUT_MS>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "x402-list-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402-list-mcp@0.5.3"
      ],
      "env": {
        "X402_LIST_BASE_URL": "<YOUR_X402_LIST_BASE_URL>",
        "X402_LIST_TIMEOUT_MS": "<YOUR_X402_LIST_TIMEOUT_MS>"
      }
    }
  }
}

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": {
    "x402-list-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "x402-list-mcp@0.5.3"
      ],
      "env": {
        "X402_LIST_BASE_URL": "<YOUR_X402_LIST_BASE_URL>",
        "X402_LIST_TIMEOUT_MS": "<YOUR_X402_LIST_TIMEOUT_MS>"
      }
    }
  }
}

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": {
    "x402-list-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "x402-list-mcp@0.5.3"
      ],
      "env": {
        "X402_LIST_BASE_URL": "<YOUR_X402_LIST_BASE_URL>",
        "X402_LIST_TIMEOUT_MS": "<YOUR_X402_LIST_TIMEOUT_MS>"
      }
    }
  }
}

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