# AgentToll Academic Papers Search

> AgentToll Academic Papers Search is a paid API for AI agents from agenttoll.dev, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-16).

Search and retrieve academic research papers by keyword query, returning paginated results with metadata.

## Facts

- Endpoint: POST https://agenttoll.dev/paid/academic/papers
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agenttoll-academic-papers-search-20edd40f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5BSO6ImTkMIxjzt66DRT-

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-academic-papers-search-20edd40f -d '<json body>'
```

Example prompt: Search for up to 10 academic papers on CRISPR gene editing therapy — I need peer-reviewed results I can use for a literature review.

## When to prefer this

Choose this endpoint when an AI agent needs to programmatically search academic literature as part of a research workflow, literature review, or fact-finding task, and is willing to pay $0.04 USDC per call via x402 on Base. It is well-suited for agents that need structured, machine-readable academic paper data rather than a web search result, and when the use case involves scientific, medical, economic, or technical research topics.

## Known failure modes

- Empty query string returns no results or validation error
- Limit value too high may be capped or cause slow response
- Query returns zero results if topic is too niche or query is malformed
- Payment failure via x402 results in 402 HTTP response before data is returned
- Service unavailability or upstream academic database downtime causes failure

## 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 academic paper results, a 'meta' object with the total count, data source name, and generation timestamp, a 'cached' boolean indicating whether the response was served from cache, and a 'success' boolean indicating request status.

## 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-academic-papers-search-20edd40f/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)