# Tokenguard Academic Papers Search

> Tokenguard Academic Papers Search is a paid API for AI agents from eltociear-tokenguard.hf.space, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Searches academic papers on crypto, DeFi, and agent payment protocols via OpenAlex, returning titles, DOIs, years, and citation counts

## Facts

- Endpoint: POST https://eltociear-tokenguard.hf.space/data/papers
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tokenguard-academic-papers-search-110d9f05
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uXKmdTtJRj77dsAGqPMIJ

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 tokenguard-academic-papers-search-110d9f05 -d '<json body>'
```

Example prompt: Search for academic papers about agent payment protocols on Tokenguard and show me the top results including their DOIs, publication years, and how many citations each has.

## When to prefer this

Use this endpoint when you need to find academic research papers specifically related to crypto, DeFi, blockchain, or agent payment protocols, sourced from OpenAlex. Prefer this over general web search when you need structured metadata like DOIs, citation counts, and publication years for scholarly articles in these domains.

## Known failure modes

- Empty query string returns no results or error
- Query returns 0 results if topic is too niche or not indexed in OpenAlex
- Payment failure via x402 micropayment ($0.005 USDC) blocks request
- Rate limiting or HuggingFace Space timeout if service is cold-starting
- Malformed POST body returns 4xx error

## How this service works

Academic literature search over OpenAlex (250M+ works with citation counts) or arXiv: title, authors, year, venue, DOI, abstract

## Output

A JSON object containing the total result count, the original query string, the data source (OpenAlex), and an array of papers each with a DOI URL, publication year, title, and citation count.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "description": "1-25 results (default 10)"
  },
  "query": {
   "type": "string",
   "description": "Search terms"
  },
  "source": {
   "enum": [
    "openalex",
    "arxiv"
   ],
   "type": "string",
   "description": "Corpus (default openalex)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 2,
  "query": "agent payment protocols",
  "source": "openalex",
  "results": [
   {
    "doi": "https://doi.org/…",
    "year": 2025,
    "title": "…",
    "citations": 41
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tokenguard-academic-papers-search-110d9f05/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)