# x402-toolbox Semantic Scholar Search

> x402-toolbox Semantic Scholar Search is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-29).

Search academic papers and research literature on Semantic Scholar, paid per-call via x402/USDC with no API key required.

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/research/semantic-scholar-search?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-toolbox-semantic-scholar-search-156dcab6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QMoFKW4L4xJvm8D_kFdng

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-toolbox-semantic-scholar-search-156dcab6
```

Example prompt: Search Semantic Scholar for papers about transformer-based large language models and give me the top results with titles and abstracts.

## When to prefer this

Choose this endpoint when an AI agent needs to search academic and scientific literature without provisioning a Semantic Scholar API key. Ideal for research workflows where payments are handled via x402/USDC on Base, and where no signup or credential management is desired. Best for one-off or low-volume scholarly literature lookups in agentic pipelines.

## Known failure modes

- Empty query returns no results or an error
- Query too broad may return irrelevant papers
- Payment failure over x402 returns 402 status and no data
- Rate limiting if too many calls in quick succession
- Schema parameter malformed returns validation error

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

Returns a JSON response with academic paper results from Semantic Scholar, including paper titles, abstracts, authors, publication years, citation counts, and links to papers matching the search query.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "schema": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-toolbox-semantic-scholar-search-156dcab6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)