# arXiv Preprint Search via research.memoryapi.org

> arXiv Preprint Search via research.memoryapi.org is a paid API for AI agents from research.memoryapi.org, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Search arXiv preprints across CS, AI, physics, math, and other scientific disciplines by keyword or topic.

## Facts

- Endpoint: GET https://research.memoryapi.org/x402/research/arxiv
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/research-memoryapi-org-fcd1d1fa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cwFdQK9fuCPUiGcRc_LML

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 research-memoryapi-org-fcd1d1fa
```

Example prompt: Search arXiv for recent preprints on diffusion model image generation in the CS and AI categories — show me the titles, authors, and abstracts for the top results.

## When to prefer this

Choose this endpoint when you specifically need arXiv preprints — cutting-edge, not-yet-peer-reviewed research in CS, AI, physics, math, or related STEM fields. Prefer this over general scholarly search (OpenAlex) when freshness and access to very recent submissions matters, or when the user specifically wants preprints rather than published journal articles.

## Known failure modes

- No results found for very niche or misspelled queries
- Rate limiting or quota exceeded returns an error
- Invalid or missing query parameter returns a 400-level error
- Payment not processed results in a 402 response blocking access
- arXiv upstream unavailability causes timeout or 5xx error

## How this service works

Scientific literature search API with x402 micropayments. Search PubMed, arXiv, and Crossref citations.

## Output

Returns a list of arXiv preprint records matching the query, including paper titles, authors, abstracts, arXiv IDs, submission dates, and subject categories.

## Example request

```json
{
 "query": "artificial intelligence",
 "category": "cs",
 "max_results": 10
}
```

## Response schema (JSON Schema)

```json
{
 "example": {
  "count": 10,
  "query": "large language models",
  "papers": [
   {
    "url": "https://arxiv.org/abs/2401.12345",
    "title": "Attention Is All You Need (revisited)",
    "authors": [
     "Vaswani A"
    ],
    "summary": "We propose...",
    "arxiv_id": "2401.12345",
    "category": "cs.CL",
    "published": "2024-01-15T00:00:00Z"
   }
  ],
  "source": "arXiv.org",
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/research-memoryapi-org-fcd1d1fa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from research.memoryapi.org](https://www.zero.xyz/host/research.memoryapi.org/llms.txt)