Maxwell Directory (x402 + MCP)

MCP server · by maxwellinternational

Data & Analytics npmStreamable HTTP v0.2.0

Local providers worldwide, plus travel and public data. Free search; paid answers via x402.

Website ↗ Generate config for multiple servers More servers

Install

Pin version registry version 0.2.0

npm
npx -y @maxwellintl/x402-mcp

npm
npx -y @maxwellintl/x402-mcp@0.2.0

Streamable HTTP
https://api.maxwellinternational.ai/mcp

Setup by client

Pick your client — the config below is generated for this server (both local and hosted-endpoint forms). Copy respects the “Pin version” switch above.

claude_desktop_config.json

{
  "mcpServers": {
    "data": {
      "command": "npx",
      "args": [
        "-y",
        "@maxwellintl/x402-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "data": {
      "command": "npx",
      "args": [
        "-y",
        "@maxwellintl/x402-mcp@0.2.0"
      ]
    }
  }
}

Remote (hosted) endpoint

https://api.maxwellinternational.ai/mcp

Claude Desktop: Settings → Connectors → Add custom connector, paste this URL.

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add data -- npx -y @maxwellintl/x402-mcp

claude mcp add data -- npx -y @maxwellintl/x402-mcp@0.2.0

terminal

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

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json

{
  "mcpServers": {
    "data": {
      "command": "npx",
      "args": [
        "-y",
        "@maxwellintl/x402-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "data": {
      "command": "npx",
      "args": [
        "-y",
        "@maxwellintl/x402-mcp@0.2.0"
      ]
    }
  }
}

.cursor/mcp.json (hosted endpoint)

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

Format verified against the official Cursor docs ↗.

.vscode/mcp.json

{
  "servers": {
    "data": {
      "command": "npx",
      "args": [
        "-y",
        "@maxwellintl/x402-mcp"
      ]
    }
  }
}

{
  "servers": {
    "data": {
      "command": "npx",
      "args": [
        "-y",
        "@maxwellintl/x402-mcp@0.2.0"
      ]
    }
  }
}

.vscode/mcp.json (hosted endpoint)

{
  "servers": {
    "data": {
      "type": "http",
      "url": "https://api.maxwellinternational.ai/mcp"
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json

{
  "mcpServers": {
    "data": {
      "command": "npx",
      "args": [
        "-y",
        "@maxwellintl/x402-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "data": {
      "command": "npx",
      "args": [
        "-y",
        "@maxwellintl/x402-mcp@0.2.0"
      ]
    }
  }
}

mcp_config.json (hosted endpoint)

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

Format verified against the official Windsurf docs ↗.

Environment variables

Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.

MAXWELL_WALLET_KEY_FILE — File with a Base (EVM) private key for paying; without a wallet, paid tools only quote
MAXWELL_SOLANA_KEY_FILE — File with a Solana secret key for paying in USDC on Solana
MAXWELL_MAX_PER_CALL_USD — Per-call cap; above it the user is asked (default 0.05)
MAXWELL_DAILY_BUDGET_USD — Daily spend cap in USD (default 2)

About this server

Distributed as npm, Streamable HTTP, listed under Data & Analytics. Review our MCP security guide before granting access to real data.

Frequently asked questions

How do I install Maxwell Directory (x402 + MCP)?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is Maxwell Directory (x402 + MCP) free to use?

The MCP server itself is free to install. Any third-party service it calls may require its own API key and account.

Which clients support Maxwell Directory (x402 + MCP)?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

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