# The Stall Patent Intelligence — x402 Pay-Per-Call

> The Stall Patent Intelligence — x402 Pay-Per-Call is a paid API for AI agents from the-stall.intuitek.ai, paid per call via x402, $0.021/call, status unknown (last checked 2026-09-15).

Delivers AI-callable patent intelligence data for a one-time USDC micropayment on Base mainnet, with no account or API key required.

## Facts

- Endpoint: GET https://the-stall.intuitek.ai/cap/patent-intel
- Price: $0.021/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/the-stall-patent-intelligence-x402-pay-per-call-990dc7ff
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uiSTwTLKdtlCCIAyZVfkC

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 the-stall-patent-intelligence-x402-pay-per-call-990dc7ff
```

Example prompt: Can you pull patent intelligence on lithium-ion battery solid-state electrolyte innovations — I want to see what filings exist and who holds them?

## When to prefer this

Choose this endpoint when you need on-demand patent intelligence without committing to a subscription or managing API credentials — ideal for agents performing one-off IP lookups, prior art searches, or competitive IP research using USDC micropayments on Base mainnet. Prefer it over traditional patent APIs when frictionless, pay-as-you-go access is a priority and the user already operates in a crypto-native or x402-compatible environment.

## Known failure modes

- Missing or malformed 'properties' query parameter returns an error or empty result
- Payment failure on Base mainnet (insufficient USDC balance or network issue) results in HTTP 402 and no data returned
- Overly broad or ambiguous query strings may return low-relevance or generic patent data
- Rate limiting or node congestion on Base mainnet may cause delayed payment confirmation
- Query outside the supported patent domains may return null or sparse results

## How this service works

Domain-agnostic x402 capability chassis by IntuiTek¹. 300 AI-callable data services — pay USDC on Base mainnet. No accounts or API keys required.

## Output

Returns structured patent intelligence data relevant to the queried properties, which may include patent titles, filing dates, assignees, inventors, patent classification codes, claim summaries, and status information — all delivered in a single pay-per-call response with no account setup required.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/the-stall-patent-intelligence-x402-pay-per-call-990dc7ff/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from the-stall.intuitek.ai](https://www.zero.xyz/host/the-stall.intuitek.ai/llms.txt)