Use the Trip Wizard from your AI app

Maxwell International Data is an MCP server: your AI assistant can search ski resorts, lift-ticket prices, trip plans, restaurants and menus near resorts, plus company, legal and FDA records, and pay only for the answers it uses.

Server URL: https://api.maxwellinternational.ai/mcp

Free tools work in every app: list_products, get_price_quote, service_terms, ski_coverage, trip_map, food_coverage, llm_models. Paid tools cost from $0.002 per call in USDC (Base or Solana) and need an app that can pay with x402: use the wallet option below, or your own code. Calls that find nothing are not charged.

One click

The badge adds our hosted server: instant, no setup, free tools and exact quotes. The wallet version installs the npm package @maxwellintl/x402-mcp on your computer; once you point it at a small wallet (MAXWELL_WALLET_KEY_FILE, see below) it can also buy paid answers, within your caps.

Paste the URL

Claude (web, desktop, mobile)

Settings → Connectors → Add custom connector → paste the server URL → Add. Free plans can add one custom connector.

ChatGPT

Settings → Apps & Connectors → Advanced → turn on Developer mode → Create → paste the server URL, authentication: none. Paid plans.

Grok

Open grok.com/connectors → New connector → Custom → paste the server URL.

Claude Code

claude mcp add --transport http maxwell https://api.maxwellinternational.ai/mcp

Windsurf

Add to mcp_config.json:

{
  "mcpServers": {
    "maxwell": {
      "serverUrl": "https://api.maxwellinternational.ai/mcp"
    }
  }
}

Gemini CLI

Add to ~/.gemini/settings.json:

{
  "mcpServers": {
    "maxwell": {
      "httpUrl": "https://api.maxwellinternational.ai/mcp"
    }
  }
}

Any other MCP app

{
  "mcpServers": {
    "maxwell": {
      "url": "https://api.maxwellinternational.ai/mcp"
    }
  }
}

Pay from your own wallet

To use paid tools in Cursor, VS Code, Claude Desktop, Claude Code and similar apps, run the local server with a small, dedicated wallet (a few dollars of USDC on Base or Solana, never your main wallet). The key stays on your computer; every call is capped ($0.05 per call, $1 per session, $2 per day by default) and asks you before anything above the cap.

{
  "mcpServers": {
    "maxwell": {
      "command": "npx",
      "args": [
        "-y",
        "@maxwellintl/x402-mcp"
      ],
      "env": {
        "MAXWELL_WALLET_KEY_FILE": "/path/to/base-wallet.key"
      }
    }
  }
}

Claude Code:

claude mcp add maxwell -e MAXWELL_WALLET_KEY_FILE=/path/to/base-wallet.key -- npx -y @maxwellintl/x402-mcp

Solana: set MAXWELL_SOLANA_KEY_FILE instead (or as well, with MAXWELL_NETWORK=solana to prefer it). All settings: package page.

For developers

xAI Grok API

Remote MCP tool (Responses API):

{
  "model": "grok-4.3",
  "input": "Plan a ski weekend in Jasna, Slovakia",
  "tools": [{ "type": "mcp", "server_url": "https://api.maxwellinternational.ai/mcp", "server_label": "maxwell" }]
}

OpenAI API

Remote MCP tool (Responses API):

{
  "model": "gpt-5",
  "input": "Plan a ski weekend in Jasna, Slovakia",
  "tools": [{ "type": "mcp", "server_label": "maxwell", "server_url": "https://api.maxwellinternational.ai/mcp", "require_approval": "never" }]
}

Hosted agents that implement the x402 MCP transport can pay paid tools directly: an unpaid call returns the payment requirements; re-call with _meta["x402/payment"]. HTTP API: OpenAPI · llms.txt.

Listed on

MCP Registry (ai.maxwellinternational/data) · Smithery · Glama · npm