`fda_crl_detail`

Pack: openfda · 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/fda_crl_detail for the schema, then POST the same URL with its arguments for the data.

Retrieve one FDA Complete Response Letter by application number and optionally letter date. Returns the FDA-disclosed letter text and document URL. Confidential commercial and trade-secret material may be redacted by FDA.

Parameters

Name	Type	Required	Description
`application_number`	string	yes	Required NDA/BLA application number.
`letter_date`	string	no	Optional exact letter date, YYYY-MM-DD, when an application has multiple CRLs.

Example call

Arguments

{
  "application_number": "NDA209510"
}

curl

curl -X POST https://gateway.pipeworx.io/openfda/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"fda_crl_detail","arguments":{"application_number":"NDA209510"}}}'

TypeScript (@pipeworx/sdk)

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

const result = await pipeworx.call('fda_crl_detail', {
  "application_number": "NDA209510"
});

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 openfda pack

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

See Getting Started for client-specific install steps.

fda_crl_detail