# srch.best Regulatory Data

> srch.best Regulatory Data is a paid API for AI agents from x402.srch.best, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Returns structured FDA regulatory data including drug recalls, food recalls, device recalls, drug labels, and adverse events based on a search query

## Facts

- Endpoint: POST https://x402.srch.best/regulatory
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/srch-best-regulatory-data-be337a5b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rG2e2SaT1i7NQnWErQwev

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability srch-best-regulatory-data-be337a5b -d '<json body>'
```

Example prompt: Search for drug recalls related to metformin and return up to 20 results so I can check if any of my patient's medications are affected.

## When to prefer this

Choose this endpoint when you need fast, structured, machine-readable FDA regulatory data without having to scrape or parse openFDA directly. Ideal for agents doing real-time safety checks, compliance workflows, or pharmacovigilance research that need per-request micropayment billing via x402 rather than API key management. Prefer over raw web search when you need structured recall or adverse event records rather than unstructured news articles.

## Known failure modes

- Query string too short (under 2 characters) returns validation error
- Limit out of range (below 1 or above 100) returns validation error
- Invalid type enum value returns schema validation error
- No matching records for query returns empty result set
- Payment failure via x402 protocol blocks the request
- Query too long (over 200 characters) returns validation error

## How this service works

Structured regulatory data for agents, paid per request with x402 v2

## Output

A structured list of up to 100 regulatory records matching the query, typed by the requested category (drug recall, food recall, device recall, drug label, or adverse event), including relevant regulatory details such as recall reason, product description, event severity, or label content depending on the data type requested.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "type": {
   "enum": [
    "drug_recall",
    "food_recall",
    "device_recall",
    "drug_label",
    "adverse_event"
   ],
   "type": "string"
  },
  "limit": {
   "type": "integer",
   "default": 10,
   "maximum": 100,
   "minimum": 1
  },
  "query": {
   "type": "string",
   "maxLength": 200,
   "minLength": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/srch-best-regulatory-data-be337a5b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.srch.best](https://www.zero.xyz/host/x402.srch.best/llms.txt)