# USDA FoodData Central Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## USDA FoodData Central

Search foods and compare nutrition facts from the USDA database

- Record: https://musedirectory.ai/connector/usda-fooddata-central
- Category: Health
- Developer: cyanheads
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 711ms, checked 2026-09-28T09:31:18Z
- Endpoint: https://usda.caseyjhand.com/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-25T06:36:08Z)
- Source: Found in the official MCP Registry (io.github.cyanheads/usda-mcp-server) https://registry.modelcontextprotocol.io/v0/servers?search=io.github.cyanheads%2Fusda-mcp-server

Access the USDA FoodData Central database to search foods by name or barcode, view complete nutrient profiles, and compare nutritional content side-by-side. Covers whole foods and branded products with detailed macronutrients, vitamins, and minerals.

Example request: "Compare the iron content in spinach versus kale to see which is better for my diet."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use USDA FoodData Central to help me. It is a free service with an MCP server at https://usda.caseyjhand.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- usda_list_nutrients: Look up the FDC nutrient reference table — all tracked nutrients with their numeric IDs, names, SR reference numbers, units, and categories. Use to resolve a nutrient name (e.g. "vitamin C") to its FDC ID (1162) before passing it to the nutrients[] filter on other tools. Filter b
- usda_search_foods: Search USDA FoodData Central foods by keyword. Returns matching foods with FDC IDs and a preview of key nutrients (energy, protein, fat, carbs — not guaranteed complete). Use the returned fdcId with usda_get_food for the full nutrient profile, or usda_compare_foods for side-by-si
- usda_get_food: Get the full nutrient profile for one food by FDC ID. Returns all available nutrients (or a filtered subset via the nutrients[] param) with optional per-portion scaling. Use usda_search_foods to discover FDC IDs. Provide quantity + unit to scale all nutrient values from per-100g 
- usda_get_foods: Fetch nutrient profiles for 2–20 foods in a single API call. More efficient than calling usda_get_food N times when you already have multiple FDC IDs. All values are per 100g (no portion scaling). Use the nutrients[] filter to limit response size — strongly recommended for batch 
- usda_compare_foods: Compare nutrients side-by-side for 2–5 foods. Returns a structured table — one row per nutrient, one column per food — formatted as markdown. Best for "spinach vs kale iron" or "which has more protein?" questions. Omit nutrients[] to use the 12 most common defaults (energy, prote

Screening checks:
- MCP handshake: pass (Answered in 391ms)
- Domain against threat feeds (Cloudflare security DNS): pass (usda.caseyjhand.com not flagged)
- Published packages against the OSV malicious-package database: pass (No malicious-package advisories)
- Hidden instructions or invisible characters in tool text: pass (5 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)