# NLM DailyMed Drug Label SPL Search

> NLM DailyMed Drug Label SPL Search is a paid API for AI agents from api.healthtravel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Returns NLM DailyMed structured product labeling (SPL) listings matching a drug name, including labeler, set ID, label version, published date, and total match count (up to 10 labels per call).

## Facts

- Endpoint: GET https://api.healthtravel-api.workers.dev/api/health/daily-med-label-spl?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nlm-dailymed-drug-label-spl-search-9430c74f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kVbEEwOGBrzC20P9aaR2r

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 nlm-dailymed-drug-label-spl-search-9430c74f
```

Example prompt: Can you search DailyMed for all available structured product labels for metformin and show me the labeler names, set IDs, versions, and published dates — give me up to 8 results?

## When to prefer this

Use this endpoint when you need to enumerate available FDA structured product labels for a drug from NLM DailyMed, including labeler identity, version tracking, and publication dates, without needing the full label text. Ideal for regulatory research, drug database enrichment, or identifying how many manufacturers have filed labels for a given drug. Prefer this over full-text label retrieval when only metadata (labeler, version, date, set ID) is needed and bandwidth or cost is a concern.

## Known failure modes

- Drug name not found — returns zero results or empty list if no DailyMed records match
- Drug name too short (under 2 chars) or too long (over 60 chars) — input validation error
- Special characters beyond letters, digits, spaces, and hyphens in drug name — rejected input
- DailyMed upstream unavailable — may return timeout or upstream error
- Max parameter out of range (must be 1–10) — may default or error

## How this service works

NLM DailyMed drug label listings (structured product labeling) matching a drug name: title with labeler, set ID, label version, published date and total match count. Lists labels only; label section text is not included. Up to 10 labels per call.

## Output

A list of up to 10 DailyMed structured product labeling (SPL) records matching the drug name, each containing the label title, labeler name, SPL set ID, label version number, and published date, along with a total match count indicating how many labels exist for that drug name across all labelers.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "drug"
     ],
     "properties": {
      "max": {
       "type": "string",
       "description": "How many labels, 1 to 10 (default 5)"
      },
      "drug": {
       "type": "string",
       "description": "Drug name, letters, digits, spaces and hyphens, 2 to 60 characters"
      }
     }
    }
   },
   "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/nlm-dailymed-drug-label-spl-search-9430c74f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.healthtravel-api.workers.dev](https://www.zero.xyz/host/api.healthtravel-api.workers.dev/llms.txt)