`gsfa_check_use`

Pack: codex-gsfa · Endpoint: https://gateway.pipeworx.io/codex-gsfa/mcp

Answer whether a specific food additive is permitted in a specific food category under the Codex General Standard for Food Additives, and at what maximum level. Returns the maximum use level (a numeric limit such as 10,000 mg/kg, or GMP meaning good manufacturing practice), which GSFA table the permission comes from, the note references that condition it, and whether the permission was stated for that exact food category or inherited from a parent category. Use for questions about whether an additive is allowed in a food, legal use levels, and food additive compliance.

Parameters

Name	Type	Required	Description
`additive`	string	yes	INS number, name, or synonym — e.g. “461”, “methyl cellulose”.
`food_category`	string	yes	GSFA food category number (“13.2”) or its name (“complementary foods for infants”) — both work. Subcategories inherit parent provisions.

Example call

Arguments

{
  "additive": "461",
  "food_category": "14.1.5"
}

curl

curl -X POST https://gateway.pipeworx.io/codex-gsfa/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"gsfa_check_use","arguments":{"additive":"461","food_category":"14.1.5"}}}'

TypeScript (@pipeworx/sdk)

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

const result = await pipeworx.call('gsfa_check_use', {
  "additive": "461",
  "food_category": "14.1.5"
});

More examples

{
  "additive": "xanthan gum",
  "food_category": "13.2"
}

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "codex-gsfa": {
      "url": "https://gateway.pipeworx.io/codex-gsfa/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

gsfa_check_use