# PatentScope Prior Art Search

> PatentScope Prior Art Search is a paid API for AI agents from x402-patentscope.onrender.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-15).

Searches for prior art related to an invention description to support patent research and novelty assessment

## Facts

- Endpoint: POST https://x402-patentscope.onrender.com/prior-art?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/patentscope-prior-art-search-28f9e958
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cuq0U0P3TD-jijhkj4Qjv

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 patentscope-prior-art-search-28f9e958 -d '<json body>'
```

Example prompt: Can you search for prior art on my invention — it's a self-cleaning water bottle that uses UV light and a micro-pump to circulate water through a UV chamber every hour? Return up to 10 results.

## When to prefer this

Use this endpoint when you need quick, on-demand prior art search for a specific invention description without setting up a full patent database subscription. It is particularly well-suited for early-stage novelty checks, rapid idea validation, or feeding results into a broader patent analysis workflow. Prefer it over manual patent office searches when you need programmatic access to prior art data at low per-query cost.

## Known failure modes

- Missing or empty invention description returns a validation error
- Limit value below 1 or above 25 causes a schema validation error
- Vague or very short descriptions may return low-relevance results
- Service unavailability on the hosted platform (Render cold start latency or downtime)
- Payment failure or insufficient USDC balance prevents the call from completing

## How this service works

Terms of service: GET /terms (free).

## Output

A list of prior art references (up to the requested limit, max 25) relevant to the provided invention description, likely including patent titles, identifiers, and summaries of existing inventions that overlap with the described concept.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "default": 10,
   "maximum": 25,
   "minimum": 1
  },
  "description": {
   "type": "string",
   "description": "Invention description to find prior art for"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/patentscope-prior-art-search-28f9e958/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-patentscope.onrender.com](https://www.zero.xyz/host/x402-patentscope.onrender.com/llms.txt)