# Suverse openFDA Drug Adverse Events Query

> Suverse openFDA Drug Adverse Events Query is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).

Queries the US FDA openFDA drug adverse events dataset by search expression, returning structured matching records without requiring an API key.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-openfda-drug-events
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/suverse-openfda-drug-adverse-events-query-6140bdc3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qRFmMO55-LTkMwv_b9uMg

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 suverse-openfda-drug-adverse-events-query-6140bdc3 -d '<json body>'
```

Example prompt: Search the FDA adverse events database for reports involving aspirin where the patient reaction was anaphylaxis — give me the matching structured records.

## When to prefer this

Choose this endpoint when you need no-key access to the US FDA FAERS (adverse event reporting system) drug data via a proxy that handles authentication and x402 micropayment billing. Prefer it over direct openFDA calls when working in an agent pipeline that uses x402 payment infrastructure, or when you need a stable proxy endpoint rather than managing FDA API quotas directly.

## Known failure modes

- Invalid or malformed search expression returns an error or empty result set
- Search expression syntax not compatible with openFDA query format
- Rate limits or upstream FDA API unavailability may cause timeouts
- No records found for very specific or uncommon search terms
- Missing required input body fields returns a validation error

## How this service works

Query the openFDA drug adverse events dataset by search expression, no key, US FDA public data. Returns matching records with structured fields. For AI agents in pharma, health, and safety research.

## Output

Returns an array of structured adverse event records from the FDA FAERS database, each containing fields such as drug name, patient demographics, reported reactions, seriousness indicators, report dates, and reporter information — all as structured JSON matching the openFDA schema.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/suverse-openfda-drug-adverse-events-query-6140bdc3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)