Which FDA-regulated firms have an open FDA warning letter? Search the FDA Warning Letters
Which FDA-regulated firms have an open FDA warning letter? Search the FDA Warning Letters index by company, product area (drugs, devices, biologics, food, dietary-supplement, cosmetics, tobacco, veterinary), issuing office, subject (CGMP, adulterated, misbranded), open/closed status, or issue/posted date. Returns the recipient firm (entity-resolved where possible), issuing office, subject, and response/close-out dates — a documented compliance gap and remediation trigger.
1250000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-07
updated
Provider
api.govparse.io · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x3873d15CF3209c32aaA8d9AA542164E658567129",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1250000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "BdcZbENFdEyEUMqv9pnRMUnn1Yyeyo2dCMbYXbJ3LmaB",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "1250000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"company": "Acme Labs",
"issuing_office": "Center for Drug Evaluation and Research",
"product_area": "drugs"
},
"type": "http"
},
"output": {
"example": {
"rows": [
{
"closeout_date": null,
"company_name": "Example Pharmaceuticals, Inc.",
"entity_id": null,
"has_response": false,
"is_closed": false,
"issuing_office": "Center for Drug Evaluation and Research | CDER",
"letter_id": "3f5a9c1e2b7d4a8c6e0f1a2b3c4d5e6f",
"letter_issue_date": "2026-03-04",
"posted_date": "2026-03-18",
"product_area": "drugs",
"response_date": null,
"subject": "CGMP/Finished Pharmaceuticals/Adulterated"
}
],
"total_matched": 1
},
"type": "json"
}
},
"routeTemplate": "/v1/fda/warning-letters/search",
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"closed": {
"description": "false = open letters (no close-out) only; true = closed-out only.",
"examples": [
"false"
],
"type": "string"
},
"company": {
"description": "Recipient company name — suffix/punctuation-insensitive.",
"examples": [
"Acme Labs"
],
"type": "string"
},
"entity_id": {
"description": "Resolved employer entity UUID (pivots to business360).",
"examples": [
"b7f3e2d1-4a5c-4e6f-8a9b-0c1d2e3f4a5b"
],
"type": "string"
},
"issuing_office": {
"description": "FDA center / district office fragment.",
"examples": [
"Center for Drug Evaluation and Research"
],
"type": "string"
},
"limit": {
"description": "Max rows (default 25, cap 100).",
"examples": [
25
],
"type": "integer"
},
"offset": {
"description": "Rows to skip.",
"examples": [
0
],
"type": "integer"
},
"posted_since": {
"description": "Posted date on/after this date (YYYY-MM-DD) — newly-published letters.",
"examples": [
"2026-01-01"
],
"type": "string"
},
"product_area": {
"description": "drugs | devices | biologics | food | dietary-supplement | cosmetics | tobacco | veterinary | other (CSV).",
"examples": [
"drugs"
],
"type": "string"
},
"responded": {
"description": "true = a firm response letter is on record; false = none.",
"examples": [
"false"
],
"type": "string"
},
"since": {
"description": "Letter issue date on/after this date (YYYY-MM-DD).",
"examples": [
"2026-01-01"
],
"type": "string"
},
"sort": {
"description": "letter_issue_date | posted_date :asc|:desc. Default letter_issue_date:desc.",
"examples": [
"letter_issue_date:desc"
],
"type": "string"
},
"subject": {
"description": "Subject / alleged-violation fragment.",
"examples": [
"CGMP"
],
"type": "string"
}
},
"required": [],
"type": "object"
}
},
"type": "object"
}
}
}Use it
curl
curl "https://api.govparse.io/v1/fda/warning-letters/search" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://api.govparse.io/v1/fda/warning-letters/search");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://api.govparse.io/v1/fda/warning-letters/search")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/14590.json, and this resource appears in /discovery/resources and /discovery/search.