# AgentRXI Academic Paper Search

> AgentRXI Academic Paper Search is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-15).

Search 250M+ academic works via OpenAlex, returning titles, authors, year, venue, DOI, open-access PDF links, citation counts, and abstracts.

## Facts

- Endpoint: GET https://agentrxi.com/v1/papers?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentrxi-academic-paper-search-8685ff78
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s2NleIndFriBjdjdhEVc2

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 agentrxi-academic-paper-search-8685ff78
```

Example prompt: Search OpenAlex for the top 10 most-cited papers on transformer neural networks published since 2017 and give me their titles, authors, DOIs, and abstracts.

## When to prefer this

Choose this endpoint when you need structured metadata for academic and scientific papers at scale (250M+ works), especially when you need citation counts, DOIs, or open-access PDF links. It is preferable to general web search for literature review tasks, since it returns structured bibliographic data directly from OpenAlex rather than HTML snippets. Prefer it over PubMed-specific APIs when you need cross-disciplinary coverage beyond biomedical literature.

## Known failure modes

- Query string missing — returns 400 error
- Limit out of range (must be 1–25) — returns validation error
- No papers found for niche or misspelled query — returns empty results list
- OpenAlex upstream unavailability — returns 502 or timeout
- Payment failure (x402) — returns 402 Payment Required before any data is returned

## How this service works

Academic paper search across 250M+ works (OpenAlex): title, authors, year, venue, DOI, open-access PDF link, citation count and abstract. Sort by relevance, most recent or most cited.

## Output

A list of up to 25 academic paper records, each containing: title, list of authors, publication year, venue/journal name, DOI, open-access PDF URL (if available), citation count, and abstract. Results are sorted by relevance, recency, or citation count depending on the sort parameter.

## 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"
      },
      "sort": {
       "type": "string",
       "description": "relevance (default) | recent | cited"
      },
      "limit": {
       "type": "integer",
       "description": "1 to 25, default 10"
      },
      "from_year": {
       "type": "integer"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentrxi-academic-paper-search-8685ff78/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentrxi.com](https://www.zero.xyz/host/agentrxi.com/llms.txt)