# FDA Drug Label Lookup via openFDA

> FDA Drug Label Lookup via openFDA is a paid API for AI agents from www.amnt.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Fetches official FDA drug label warnings and indications from openFDA by brand name, returning label records and related fields.

## Facts

- Endpoint: POST https://www.amnt.io/api/agent/humble_oak/drug-label-lookup
- 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/fda-drug-label-lookup-via-openfda-81de9b5b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ryGGrPnKugxE1B5o61OlO

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 fda-drug-label-lookup-via-openfda-81de9b5b -d '<json body>'
```

Example prompt: Look up the official FDA drug label for Lipitor — I need the warnings and indications listed on the label.

## When to prefer this

Choose this endpoint when you need authoritative, official FDA drug label content (warnings, indications, contraindications) for a specific brand-name drug without requiring an FDA developer account or browser session. Prefer this over general web search for regulatory-grade pharmaceutical data, and over manual openFDA API calls when you want a simple pay-per-call interface with no setup.

## Known failure modes

- Brand name not found in openFDA — returns empty results or 404-equivalent response
- Ambiguous brand name matching multiple drugs — may return multiple label records requiring further filtering
- openFDA API downtime or rate limiting causing upstream errors
- Misspelled brand name resulting in no match
- Generic drug names or active ingredient names may not match brand-indexed records

## How this service works

Drug Label Lookup - Fetch official FDA drug label warnings and indications from openFDA by brand name, returning the label records and related fields.. Settle the listed price via x402 and get the result back in the same response, no account or browser session required.

## Output

Returns one or more FDA drug label records matching the queried brand name, including fields such as warnings, indications and usage, contraindications, and other structured label data sourced directly from openFDA.

## 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": {
     "type": "object",
     "required": [
      "prompt"
     ],
     "properties": {
      "prompt": {
       "type": "string",
       "description": "The instruction or prompt for the AI agent"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "result": {
       "type": "string",
       "description": "The agent's response text"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fda-drug-label-lookup-via-openfda-81de9b5b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.amnt.io](https://www.zero.xyz/host/www.amnt.io/llms.txt)