# arXiv Full-Text Search

> arXiv Full-Text Search is a paid API for AI agents from x402-deployer.x402-deployer.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Searches arXiv papers by query, author, category, or ID and returns title, authors, abstract, category, dates, PDF URL, and DOI.

## Facts

- Endpoint: POST https://x402-deployer.x402-deployer.workers.dev/arxiv-search
- 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/x402-deployer-x402-deployer-workers-dev-b0e7ed84
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rooiaCsjFIjXHC3sYS96A

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 x402-deployer-x402-deployer-workers-dev-b0e7ed84 -d '<json body>'
```

Example prompt: Search arXiv for the latest papers on diffusion models in computer vision — return titles, authors, abstracts, and PDF links for the top results.

## When to prefer this

Use this endpoint when you need to search or retrieve arXiv preprints by free-text query, author name, subject category, or specific paper IDs, and want structured metadata including PDF links and abstracts returned in one call without scraping arXiv directly.

## Known failure modes

- No results found for query — returns empty list
- Invalid arXiv category code — may return error or zero results
- Malformed arXiv ID in id-list — API rejects with error
- arXiv API rate limit exceeded — upstream 503 or timeout
- Network or upstream arXiv service outage — propagates as 5xx

## How this service works

arXiv full-text search. Search by query / author / category / id-list. Returns title, authors, abstract, primary category, dates, PDF URL, DOI. Public arXiv API.

## Output

A list of arXiv paper records, each containing title, author list, abstract text, primary arXiv category, submission and update dates, a direct PDF URL, and DOI where available.

## Example request

```json
{
 "input": {
  "body": {
   "limit": 5,
   "query": "artificial intelligence",
   "sort_by": "relevance",
   "sort_order": "descending",
   "include_abstract": true
  },
  "type": "http",
  "method": "POST",
  "bodyType": "json"
 }
}
```

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "POST"
     ]
    },
    "bodyType": {
     "type": "string",
     "enum": [
      "json",
      "form-data",
      "text"
     ]
    },
    "body": {
     "properties": {
      "query": {
       "type": "string",
       "description": "Free-text search across title/abstract/full-text. At least one of query, author, category, or id_list is required."
      },
      "author": {
       "type": "string",
       "description": "Filter by author name."
      },
      "category": {
       "type": "string",
       "description": "arXiv category code (e.g. 'cs.LG')."
      },
      "id_list": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "description": "Array of specific arXiv IDs to look up directly."
      },
      "limit": {
       "type": "number",
       "description": "Max results to return, 1-50. Default 10."
      },
      "sort_by": {
       "type": "string",
       "enum": [
        "relevance",
        "lastUpdatedDate",
        "submittedDate"
       ],
       "description": "'relevance' (default), 'lastUpdatedDate', or 'submittedDate'."
      },
      "sort_order": {
       "type": "string",
       "enum": [
        "ascending",
        "descending"
       ],
       "description": "'descending' (default) or 'ascending'."
      },
      "include_abstract": {
       "type": "boolean",
       "description": "Boolean, default true. Set false to omit abstracts and shrink the payload."
      }
     }
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "total_results": {
       "type": "integer"
      },
      "returned": {
       "type": "integer"
      }
     }
    }
   },
   "required": [
    "type"
   ]
  }
 },
 "required": [
  "input"
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-deployer-x402-deployer-workers-dev-b0e7ed84/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-deployer.x402-deployer.workers.dev](https://www.zero.xyz/host/x402-deployer.x402-deployer.workers.dev/llms.txt)