Connect once. Reuse the tools.

Claude Code

claude mcp add --transport http toolrail https://toolrail.dev/mcp

Run this in a terminal with Claude Code installed, then open a new session and check /mcp.

Cursor

Opens Cursor to review and confirm the remote server. If Cursor is unavailable, use the configuration below.

Add this entry to .cursor/mcp.json in your project. Merge it with existing servers; keep their configuration.

{
  "mcpServers": {
    "toolrail": {
      "url": "https://toolrail.dev/mcp"
    }
  }
}

VS Code

Merge this entry into .vscode/mcp.json, then start Toolrail with the MCP commands and enable its tools in chat. Keep existing server entries.

{
  "servers": {
    "toolrail": {
      "type": "http",
      "url": "https://toolrail.dev/mcp"
    }
  }
}

Download configuration · VS Code documentation

Claude Desktop / Web

Open Settings → Connectors (Customize in some versions) → Add custom connector. Name it Toolrail and enter the remote URL below. Availability depends on your account and organization settings.

https://toolrail.dev/mcp

Your first request

Use Toolrail to convert 50 UF to Chilean pesos. Include the value date and source.

Allow the tool call in your client if prompted. You should receive a conversion, date and source. If the upstream fails, report the error; do not replace it with a guessed value.

A free request from Node.js

Download the example into an empty folder. Node.js 22 or later is required. This makes one free RUT checksum call with example data; it needs no wallet or API key.

Download free MCP example · Setup and limits

npm init -y
npm install @modelcontextprotocol/sdk@1.30.0
node mcp-free.mjs

Toolrail MCP is free within its daily quota. Your chosen editor or AI model may have its own plan and limits.

Production HTTP calls with x402

The MCP demo has a daily quota. Paid HTTP endpoints quote their price with 402 and accept USDC on Base or Solana. PDF and QR generation are available on paid HTTP only.

Download the Base x402 example · Instructions and spending limit

The example inspects the quote by default. Payment requires explicit opt-in and a funded wallet. Never paste a private key into chat, a webpage or the source file.