Seed Oil Tracker

A free, hosted MCP server that gives AI assistants live access to the largest restaurant seed oil database: 500+ US chains, 40,000+ menu items, each with an estimated PUFA (polyunsaturated fat) value built from published nutrition data and disclosed cooking oils.

Ask your assistant things like:

• Does Chick-fil-A use seed oils?
• What oil does Chipotle cook with?
• What is the cleanest thing to order at Five Guys?
• Which chains have the lowest seed oil overall?

Connect

No key, no account, read only.

Endpoint (streamable HTTP):

https://seedoiltracker.com/mcp

Claude (claude.ai): Settings, then Connectors, then Add custom connector, then paste the endpoint URL.

Claude Code:

claude mcp add --transport http seed-oil-tracker https://seedoiltracker.com/mcp

Any other MCP client: streamable HTTP transport, no auth.

Setup guide: https://seedoiltracker.com/mcp-setup

Run locally (stdio)

Prefer a local process, or your client only speaks stdio? This repo ships a zero-dependency stdio server (server.py, Python 3.8+, standard library only). It answers the MCP handshake locally and forwards tool calls to the hosted endpoint.

python server.py

Claude Desktop config example:

{
  "mcpServers": {
    "seed-oil-tracker": {
      "command": "python",
      "args": ["/path/to/server.py"]
    }
  }
}

Or with Docker:

docker build -t seed-oil-tracker-mcp .
docker run -i seed-oil-tracker-mcp

Tools

Tool	What it does
get_chain	One chain's seed oil letter grade, the oil it fries in, the cleanest menu items to order, and the highest to avoid. Fuzzy name matching.
search_chains	Find covered chains by full or partial name.
get_rankings	Chains ranked cleanest first or worst first by average seed oil per menu item.

Data

Same dataset that powers the Seed Oil Tracker iOS app and seedoiltracker.com. Also available as a no-key JSON API and ChatGPT Action (https://seedoiltracker.com/ai-tool) and as an open dataset in CSV and JSON, licensed CC BY 4.0 (https://seedoiltracker.com/open-data).

Methodology and citation: https://seedoiltracker.com/methodology

About

Built by Seed Oil Tracker (https://seedoiltracker.com). The hosted server is the primary way to connect; this repository documents it and ships the local stdio bridge. Questions and issues welcome here.