# US Patent Search via PatentsView

> US Patent Search via PatentsView is a paid API for AI agents from api.strale.io, paid per call via x402, $0.01/call, status down (last checked 2026-09-14).

Searches US patents by keyword, title, or patent number and returns patent details, inventors, and assignees via the PatentsView API

## Facts

- Endpoint: POST https://api.strale.io/x402/patent-search
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-strale-io-a9053f71
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KzjU19vdV4Xq5OlUcfHl9

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 api-strale-io-a9053f71 -d '<json body>'
```

Example prompt: Search US patents for 'neural network image classification' and return up to 10 results, including inventors and assignees.

## When to prefer this

Use this endpoint when you need to search the US patent database by keyword, title, or patent number and require structured data including inventors and assignees. Prefer it over general web search when you need machine-readable patent metadata rather than HTML pages.

## Known failure modes

- No results found for obscure or very narrow queries
- Patent number format mismatch returns empty results
- max_results exceeding API limits may cause truncation or error
- Ambiguous keyword queries may return loosely related patents
- PatentsView API downtime causes request failure

## How this service works

Search US patents via PatentsView API. Search by keyword, title, or patent number. Returns patent details, inventors, assignees. SQS: 49/100.

## Output

Returns a list of US patent records including patent number, title, filing and grant dates, inventor names, assignee organizations, and abstract details — sourced from the PatentsView API.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query",
  "max_results"
 ],
 "properties": {
  "query": {
   "type": "string"
  },
  "max_results": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-strale-io-a9053f71/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)