`fda_crl_detail`

Pack: openfda · Endpoint: https://gateway.pipeworx.io/openfda/mcp

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, or use one-click install buttons:

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

See Getting Started for client-specific install steps.

fda_crl_detail