{
  "$schema": "https://modelcontextprotocol.io/schemas/server-card.json",
  "serverInfo": {
    "name": "reltax-mcp-server",
    "title": "rel.tax — Multi-country B2B Tax Calculator",
    "version": "1.0.0",
    "description": "Native MCP tools for calculating self-employed and contractor taxes across 55 countries. Wraps the rel.tax REST API with typed tools.",
    "homepage": "https://rel.tax",
    "documentation": "https://rel.tax/llms.txt",
    "license": "MIT",
    "vendor": {
      "name": "sliday",
      "url": "https://github.com/sliday/rel-tax"
    }
  },
  "install": {
    "stdio": {
      "command": "npx",
      "args": ["@sliday/reltax"],
      "package": "@sliday/reltax",
      "runtime": "node",
      "engines": { "node": ">=18" }
    }
  },
  "transport": {
    "preferred": "stdio",
    "stdio": {
      "command": "npx",
      "args": ["@sliday/reltax"]
    }
  },
  "capabilities": {
    "tools": {
      "listChanged": false
    },
    "resources": {},
    "prompts": {},
    "logging": {}
  },
  "tools": [
    {
      "name": "reltax_list_countries",
      "description": "List all 55 supported countries with their codes, names, currencies, and tax years."
    },
    {
      "name": "reltax_get_country_info",
      "description": "Return country-specific tax parameters and documentation for a given ISO 3166-1 alpha-2 country code."
    },
    {
      "name": "reltax_calculate_tax",
      "description": "Calculate monthly and yearly net income, income tax, social insurance, and effective rates for a given country and income."
    }
  ],
  "relatedEndpoints": {
    "api": "https://rel.tax/",
    "openapi": "https://rel.tax/openapi-slim.json",
    "apiCatalog": "https://rel.tax/.well-known/api-catalog",
    "aiPlugin": "https://rel.tax/.well-known/ai-plugin.json",
    "status": "https://rel.tax/health",
    "vcs": "https://github.com/sliday/rel-tax"
  },
  "authentication": {
    "type": "none"
  }
}