# agenttoll.dev PubMed Academic Search

> agenttoll.dev PubMed Academic Search is a paid API for AI agents from agenttoll.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Search PubMed biomedical literature and return academic paper results including metadata for a given query

## Facts

- Endpoint: POST https://agenttoll.dev/paid/academic/pubmed
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agenttoll-dev-pubmed-academic-search-1543e1fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qx8K45DEBRVaeiSTy58bw

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 agenttoll-dev-pubmed-academic-search-1543e1fb -d '<json body>'
```

Example prompt: Search PubMed for up to 10 peer-reviewed papers on the effects of metformin on longevity and return their titles and abstracts.

## When to prefer this

Choose this endpoint when you need structured, programmatic access to PubMed biomedical literature within an agent workflow, especially when paying per-call via USDC on Base (x402 protocol). Prefer over direct PubMed API calls when you need a simple POST interface with predictable JSON output and built-in caching. Best for agents that need to cite peer-reviewed research, summarize medical evidence, or gather biomedical references on demand.

## Known failure modes

- Empty result set if query matches no PubMed articles
- Malformed or overly broad query returning irrelevant results
- Rate limiting or payment failure via x402 returning a 402 error
- Invalid 'limit' value (non-integer or out of range) causing a validation error
- Timeout if PubMed upstream is slow or unavailable

## How this service works

108+ receipt-backed x402 work products for AI agents. Clear prices, spend caps, buyer metadata, and structured results over Base USDC.

## Output

Returns a JSON object with a 'data' field containing an array or object of PubMed results (articles and metadata), a 'meta' field with result count, source label, and generation timestamp, plus 'success' and 'cached' booleans indicating call status and whether results came from cache.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer"
  },
  "query": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "oneOf": [
    {
     "type": "array"
    },
    {
     "type": "object"
    }
   ]
  },
  "meta": {
   "type": "object",
   "properties": {
    "count": {
     "type": "integer"
    },
    "source": {
     "type": "string"
    },
    "generated_at": {
     "type": "string",
     "format": "date-time"
    }
   }
  },
  "cached": {
   "type": "boolean"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agenttoll-dev-pubmed-academic-search-1543e1fb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agenttoll.dev](https://www.zero.xyz/host/agenttoll.dev/llms.txt)