# PubMed Academic Literature Search via Tokenguard API

> PubMed Academic Literature Search via Tokenguard API is a paid API for AI agents from eltociear-tokenguard.hf.space, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Searches PubMed biomedical literature by query and returns matching article metadata including DOI, PMID, title, and journal

## Facts

- Endpoint: POST https://eltociear-tokenguard.hf.space/data/pubmed?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pubmed-academic-literature-search-via-tokenguard-api-7fd27de5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FPY0pr1wd0bJ0hi64Room

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 pubmed-academic-literature-search-via-tokenguard-api-7fd27de5 -d '<json body>'
```

Example prompt: Search PubMed for papers on CRISPR gene editing and give me the titles, journals, DOIs, and PMIDs for the top results.

## When to prefer this

Use this endpoint when you need to look up biomedical or clinical research papers from PubMed by keyword or topic, and want structured metadata (DOI, PMID, title, journal) rather than full-text. Note: this endpoint sits on a platform primarily focused on crypto/DeFi data — its presence alongside those routes is anomalous, so verify it is functioning as expected before relying on it in production workflows.

## Known failure modes

- Empty results if query is too specific or misspelled
- Payment failure if x402 micropayment on Base is not configured or insufficient USDC balance
- Timeout if PubMed upstream is slow or unavailable
- Malformed query returns 400 error
- Rate limiting if too many requests in quick succession

## How this service works

Biomedical literature search over PubMed (NCBI, 37M+ citations): titles, journals, authors, dates and DOIs

## Output

Returns a JSON object with a result count and an array of article records, each containing DOI, PMID, article title, and journal name, matching the submitted search query.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "description": "1-25 results (default 10)"
  },
  "query": {
   "type": "string",
   "description": "Search terms"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 2,
  "query": "crispr gene editing",
  "results": [
   {
    "doi": "10.1038/…",
    "pmid": "12345678",
    "title": "…",
    "journal": "Nature"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pubmed-academic-literature-search-via-tokenguard-api-7fd27de5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from eltociear-tokenguard.hf.space](https://www.zero.xyz/host/eltociear-tokenguard.hf.space/llms.txt)