Recipe Nutrition Calculator MCP

Recipe nutrition for AI assistants: paste ingredient lines, get calories, protein, fat, saturated fat, carbohydrate, fiber, sugars and sodium per recipe and per serving from USDA FoodData Central, rounded by the FDA Nutrition Facts rules.

Hosted MCP URL (no sign-in, no token): https://recipe-nutrition-calculator-mcp.lipmichal.workers.dev/mcp

Nutrition calculators and label tools on the web: recipetool.net

Tools

Every result has structured JSON, a one-paragraph summary, an as_of date, a source URL and a more link to the matching recipetool.net page.

What it knows that your model does not

• Exact USDA values. Each of the 406 ingredients carries the FoodData Central nutrient values and FDC id: 398 from SR Legacy and 8 from the April 2026 Foundation Foods release where that release has all eight nutrients. A model recalls nutrition roughly and changes its answer between runs.
• Food-specific cup weights. A cup of flour is 125 g, packed brown sugar 220 g, shredded cheddar 113 g, chopped onion 160 g, whole milk 244 g. These are the USDA household measures for that food, not one density for everything.
• The label rounding rules. Calories round to 5 up to 50 and to 10 above, fat to 0.5 g under 5 g, sodium to 5 mg up to 140 mg and to 10 mg above, with the "less than 1g" cases for carbohydrate, fiber, sugars and protein. Copied from the eCFR text of 21 CFR 101.9.
• The current Daily Values. Fat 78 g, saturated fat 20 g, sodium 2,300 mg, carbohydrate 275 g, fiber 28 g, added sugars 50 g.

Install

Claude.ai custom connector, ChatGPT developer mode

Paste this URL as a custom connector. No token or sign-in.

https://recipe-nutrition-calculator-mcp.lipmichal.workers.dev/mcp

Claude Code

claude mcp add --transport http recipe-nutrition https://recipe-nutrition-calculator-mcp.lipmichal.workers.dev/mcp

Or run it locally over stdio:

claude mcp add recipe-nutrition -- npx -y github:theluckystrike/recipe-nutrition-calculator-mcp

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "recipe-nutrition": {
      "command": "npx",
      "args": ["-y", "github:theluckystrike/recipe-nutrition-calculator-mcp"]
    }
  }
}

Cursor

Add to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "recipe-nutrition": { "url": "https://recipe-nutrition-calculator-mcp.lipmichal.workers.dev/mcp" }
  }
}

VS Code

Add to .vscode/mcp.json:

{
  "servers": {
    "recipe-nutrition": { "type": "http", "url": "https://recipe-nutrition-calculator-mcp.lipmichal.workers.dev/mcp" }
  }
}

Test with curl

curl -s -X POST https://recipe-nutrition-calculator-mcp.lipmichal.workers.dev/mcp \
  -H 'content-type: application/json' -H 'accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"calculate_recipe_nutrition","arguments"

... [View full README on GitHub](https://github.com/theluckystrike/recipe-nutrition-calculator-mcp#readme)