# Phantom Seller Scan

> Phantom Seller Scan is a paid API for AI agents from geld-machen-x402.fly.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Probes an x402-gated URL to detect economically-phantom payTo addresses — sellers who collect payment but deliver no real value.

## Facts

- Endpoint: GET https://geld-machen-x402.fly.dev/product/phantom-seller-scan
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/phantom-seller-scan-3388e261
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tjfsbI9dCeyTQD2_Id-zR

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 phantom-seller-scan-3388e261
```

Example prompt: Can you scan this x402 endpoint for me — https://some-x402-service.fly.dev/product/data — and check whether the payTo address is a phantom seller that collects payment without delivering anything real?

## When to prefer this

Use this endpoint when an AI agent or developer needs to verify the legitimacy of an x402-gated API before authorizing payment — especially when encountering unknown or newly listed x402 providers in the wild. Prefer this over generic URL fingerprinting when the specific concern is economic fraud or phantom payTo detection in the x402 ecosystem.

## Known failure modes

- Missing or invalid 'url' parameter returns an error
- Target URL is not an x402 endpoint — scan may return inconclusive results
- Network timeout if target host is unreachable
- False negatives if a phantom seller mimics legitimate response patterns
- No response schema defined — output structure may vary

## How this service works

TIP-OF-SPEAR: URL Fingerprint ($0.01) GET ?url= → body_sha256/TLS/DNS. DEMAND-MATCHED SERP tip: Web Search ($0.02) GET ?q= (required) → ranked results. OCR tip: Image OCR ($0.01) GET ?url= → Tesseract text (COGS=0). Builder tool: Bazaar Readiness Check — FREE ?url= indexed yes/nein + issue count; PAID report $0.05 Fix-JSON. Gated-data: Base DeFi Snapshot ($0.03) balances+gas+protocol TVL/APY. Free teasers have no live hash/results. Upsell red-flag $0.25. Ladder: 0.01→0.02→0.025→0.25→0.35→0.49→0.75→17.

## Output

Returns an analysis of the target x402 URL's payTo address indicating whether the seller is economically phantom (collects payment without delivering real value), along with supporting signals from probing the endpoint.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "Required x402 URL to probe for economically-phantom payTo"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phantom-seller-scan-3388e261/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from geld-machen-x402.fly.dev](https://www.zero.xyz/host/geld-machen-x402.fly.dev/llms.txt)