elthio-mcp

Supplement safety for AI agents.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Supplement safety for AI agents. 1,500+ rules, NIH+FDA data, quality grading A-D.

    How to connect

    How to connect elthio-mcp to Claude

    The server address to paste into Claude settings:

    https://elthio-production.up.railway.app/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect elthio-mcp to ChatGPT

    The server address to paste into ChatGPT settings:

    https://elthio-production.up.railway.app/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect elthio-mcp to Cursor

    The server address to paste into Cursor settings:

    https://elthio-production.up.railway.app/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (5)

    Raw names from tools/list. Only developers need these.

    check_supplement_safetyCheck if a supplement is safe with a user's medications and existing supplements. Returns interaction data, safety score, quality grade, filler detection, NIH verification, and timing recommendation. Use this whenever a user asks about supplement safety, drug interactions, or whether they can take a supplement with their medications.
    grade_supplement_qualityGet the quality grade (A-D) for a supplement based on bioavailability, filler detection, and NIH verification. Use this when a user asks about supplement quality, which form is best, whether a supplement has concerning fillers, or wants to compare brands.
    get_supplement_timingGet the optimal time to take a supplement and why. Returns slot (morning/bedtime/with food/etc), clinical reasoning, and personalized instruction. Use this when a user asks when to take a supplement or how to build a timing schedule.
    check_full_stackCheck a complete supplement and medication stack for all interactions, conflicts, synergies, and generate a full daily timing schedule. Use this when a user wants to check their entire supplement regimen or build a complete daily schedule.
    verify_nih_labelVerify if a supplement matches a record in the NIH Dietary Supplement Label Database (DSLD). Returns verification status, DSLD ID, and confidence level. Use this when a user asks if a supplement is legitimate or wants to verify label accuracy.