# xx402 X402 Seller Visibility Audit

> xx402 X402 Seller Visibility Audit is a paid API for AI agents from x402.xx402.icu, paid per call via x402, $0.01/call, status down (last checked 2026-10-23).

Audits an x402-enabled API seller's discoverability and readiness on the CDP Bazaar marketplace by probing the origin for 402 responses and checking seller visibility for given search queries.

## Facts

- Endpoint: GET https://x402.xx402.icu/api/x402-seller-visibility-audit?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xx402-x402-seller-visibility-audit-a3049392
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ahFqHhyAWoMvsPS0CZzJ3

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 xx402-x402-seller-visibility-audit-a3049392
```

Example prompt: Run a seller visibility audit on my x402 origin at https://x402.xx402.icu for the resource path /api/x402-buyer-market-scout, using payout address 0xba76c7ECa175f67cFcE475c09498f840176bf497 on the Base network (eip155:8453), and search up to 5 results for the query 'x402 buyer market scout Base Bitcoin 15-minute prediction market' to see if I'm discoverable on CDP Bazaar.

## When to prefer this

Choose this endpoint when you need to diagnose why an x402-gated API is not appearing in CDP Bazaar searches, verify that a seller's payout address is correctly indexed, assess metadata completeness for buyer discoverability, or get a structured action plan to improve x402 marketplace visibility. It is specifically designed for x402 protocol sellers on the Base network using CDP Bazaar, and is not a general web crawler or SEO tool.

## Known failure modes

- Blocked origin (local, private, or credentialed URLs return an error)
- Seller payout address not found in CDP Bazaar merchant index
- CDP Bazaar search returns zero results for given query
- Resource path does not return HTTP 402, indicating misconfigured payment gate
- Network CAIP-2 identifier mismatch causing no results
- Rate limiting or payment failure if x402 USDC payment is not properly authorized

## How this service works

Paid Base token, wallet, DeFi, chain-read, x402 buyer/seller discovery, and specialized Bitcoin 15-minute Up/Down prediction-market data packets for autonomous agents and risk tools.

## Output

Returns a JSON object containing a summary, visibility decision, prioritized queues (priority, review, avoid), risk breakdown, bucket counts, next recommended products, discovery check results, CDP Bazaar readiness assessment, bazaar visibility status, metadata quality scores, a structured action plan, and data source statuses — giving a complete picture of whether and how a seller's x402 endpoint is discoverable by agent buyers.

## Response schema (JSON Schema)

```json
{
 "keys": [
  "summary",
  "visibility_decision",
  "priority_queue",
  "risk_breakdown",
  "review_queue",
  "avoid_queue",
  "bucket_counts",
  "next_products",
  "discovery_checks",
  "cdp_bazaar_readiness",
  "bazaar_visibility",
  "metadata_quality",
  "action_plan",
  "source_status",
  "sources"
 ],
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/xx402-x402-seller-visibility-audit-a3049392/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.xx402.icu](https://www.zero.xyz/host/x402.xx402.icu/llms.txt)