`supplement_labels`

Pack: nih-supplements · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/supplement_labels for the schema, then POST the same URL with its arguments for the data.

Search real supplement product labels — brand name, ingredients, amounts, claims — from NIH’s Dietary Supplement Label Database (DSLD). This is what’s printed on a bottle, not the science behind an ingredient (use supplement_factsheet or herb_at_a_glance for that). Search by product name, brand, or ingredient. Returns each label’s id for use with supplement_label.

Parameters

Name	Type	Required	Description
`query`	string	yes	Free-text search — a product name, brand, or ingredient, e.g. “ashwagandha” or “Nature Made fish oil”.
`limit`	number	no	Max labels to return (default 20, max 50).

Example call

Arguments

{
  "query": "ashwagandha",
  "limit": 5
}

curl

curl -X POST https://gateway.pipeworx.io/nih-supplements/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"supplement_labels","arguments":{"query":"ashwagandha","limit":5}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('supplement_labels', {
  "query": "ashwagandha",
  "limit": 5
});

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the nih-supplements pack

{
  "mcpServers": {
    "nih-supplements": {
      "url": "https://gateway.pipeworx.io/nih-supplements/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

supplement_labels