# x402-tools Deny List Age Diagnostic

> x402-tools Deny List Age Diagnostic is a paid API for AI agents from openclawproductions.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).

Returns the age and metadata of a deny-listed entity as a paid x402 diagnostic endpoint, requiring $0.02 USDC payment via EIP-3009.

## Facts

- Endpoint: GET https://openclawproductions.com/api/v1/denylistage?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-tools-deny-list-age-diagnostic-a4dd55ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_D0bZhUU_bFdjnDTBpknVY

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-tools-deny-list-age-diagnostic-a4dd55ac
```

Example prompt: Look up the deny list age for this address using the OpenX402 denylistage diagnostic — I'm okay with the $0.02 USDC charge.

## When to prefer this

Choose this endpoint when you need to retrieve deny list age metadata in a Web3/blockchain compliance context and are using the x402 micropayment protocol with OpenX402 as the facilitator. It is appropriate when you need to test or integrate EIP-3009-based paid API calls at low cost ($0.02 USDC), or when building compliance pipelines that require deny list age as an enrichment signal.

## Known failure modes

- HTTP 402 returned if payment is not provided or fails EIP-3009 validation
- Malformed or missing properties parameter may yield unexpected results
- OpenX402 facilitator unavailability causes service disruption
- Non-OpenX402 facilitators are not supported and will be rejected

## How this service works

Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.

## Output

Returns a JSON object containing the SKU identifier ('denylistage'), a diagnostic note, the price ($0.02), and the human-readable title ('Deny List Age'). Unpaid requests receive HTTP 402 with EIP-3009 payment extras instead.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "denylistage",
  "note": "Example paid JSON shape. Not a live settle.",
  "price": "$0.02",
  "title": "Deny List Age"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tools-deny-list-age-diagnostic-a4dd55ac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from openclawproductions.com](https://www.zero.xyz/host/openclawproductions.com/llms.txt)