# SiteCheck Health & Travel – PubMed Abstracts Search

> SiteCheck Health & Travel – PubMed Abstracts 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).

Searches PubMed and returns biomedical article abstracts including title, authors, journal, DOI, and publication date for matching studies

## Facts

- Endpoint: GET https://api.healthtravel-api.workers.dev/api/health/pubmed-abstracts?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/sitecheck-health-travel-pubmed-abstracts-search-43a9003b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wdvvBWEQkcN3gXxqrmGBm

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 sitecheck-health-travel-pubmed-abstracts-search-43a9003b
```

Example prompt: Search PubMed for studies on low-dose aspirin and preeclampsia prevention and give me the top 5 results with titles, authors, journals, and DOIs.

## When to prefer this

Choose this endpoint when you need structured, citation-level biomedical literature metadata from PubMed without requiring a signup, API key, or institutional access. It is ideal for agents that need to surface peer-reviewed evidence for health, drug, or clinical questions on a pay-per-call basis. Prefer it over general web search when you specifically need PubMed-indexed journal metadata (DOI, PMID, authors, journal).

## Known failure modes

- Query string shorter than 2 or longer than 200 characters returns a validation error
- max parameter outside 1–20 range returns an error
- PubMed API unavailability causes upstream failure
- Very broad queries may return low-relevance results
- No results found for highly specific or misspelled queries

## How this service works

PubMed search (NCBI E-utilities): matching articles with PMID, title, authors, journal, publication date and DOI. Citation metadata only, no abstract text. Up to 20 results.

## Output

A JSON object containing the search query, total number of matching PubMed records, the source URL (pubmed.ncbi.nlm.nih.gov), a timestamp, and an array of up to 20 results each with PMID, DOI, article title, list of authors, journal name, and publication date.

## 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": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "PubMed search terms, 2 to 200 characters"
      },
      "max": {
       "type": "string",
       "description": "How many results, 1 to 20 (default 5)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "query": "aspirin preeclampsia",
  "total": 1992,
  "source": "https://pubmed.ncbi.nlm.nih.gov/",
  "results": [
   {
    "doi": "10.1515/jpm-2026-0436",
    "url": "https://pubmed.ncbi.nlm.nih.gov/42895106/",
    "pmid": "42895106",
    "title": "Eligibility and prescribing of low-dose aspirin for preeclampsia prevention under two international guidelines: a retrospective cohort study.",
    "authors": [
     "Geçici NA",
     "Demir FN"
    ],
    "journal": "Journal of perinatal medicine",
    "publicationDate": "2026 Oct 20"
   },
   {
    "doi": null,
    "url": "https://pubmed.ncbi.nlm.nih.gov/42886186/",
    "pmid": "42886186",
    "title": "Daily Aspirin Dosing for Preeclampsia Prevention.",
    "authors": [
     "Bigelow S",
     "Sachs V"
    ],
    "journal": "American family physician",
    "publicationDate": "2026 Oct"
   }
  ],
  "checkedAt": "2026-10-23T09:36:22.611Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-health-travel-pubmed-abstracts-search-43a9003b/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)