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x402 CDP Bazaar Seller Rank Check
x402
x402 CDP Bazaar Seller Rank Check is a paid API for AI agents from x402-endpoints.onrender.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Returns the current keyword-relevance discovery rank of an x402 seller in the CDP Bazaar, including best rank and per-category-keyword rank, for discoverability monitoring.
Price / call$0.1
Success—
StatusUnknown
How this service works
Quick check of where an x402 seller ranks RIGHT NOW by keyword-relevance in the CDP Bazaar discovery (not the raw settled-volume rank the free explorers show): best rank + per-category-keyword rank in one cheap call, plus a pointer to the full /agent/visibility-audit when the rank slips. The frequent pulse for monitoring your x402 discoverability. Where do I rank now? Am I being out-ranked on my category keywords?
Output
Returns the seller's current best keyword-relevance rank in the CDP Bazaar discovery system, a breakdown of rank per category keyword, and a pointer to the full /agent/visibility-audit endpoint if the rank has slipped — all in a single cheap call.
Example use cases
Example prompt
“What's my current CDP Bazaar discovery rank right now for my x402 seller at api.example.com — am I being out-ranked on my category keywords?”
Technical details
Endpoint
GEThttps://x402-endpoints.onrender.com/agent/rank-checkWhen to prefer
Use this endpoint for lightweight, frequent polling of a single seller's current keyword-relevance rank in the CDP Bazaar — it's cheaper and faster than the full /agent/visibility-audit, making it ideal for monitoring loops or alerting workflows. Prefer it when you only need a quick rank pulse rather than a deep audit of seller trustworthiness or visibility strategy.
Side effects
- Invalid or missing seller parameter — returns error if wallet address is malformed (not 0x + 40 hex) or domain is unrecognizable
- Seller not found in CDP Bazaar — returns no rank data if the seller has never been indexed
- Payment failure — returns 402 if USDC payment is not supplied or insufficient
- Service unavailable — render.com cold-start latency or downtime may cause timeouts
- Rate limiting — too many rapid rank-check calls may be throttled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "Keyword-RELEVANCE rank in CDP Bazaar discovery/search — not the raw settled-volume rank the free explorers show.",
"error": null,
"cached": false,
"seller": "api.example.com",
"upsell": "/agent/visibility-audit",
"headline": "Best rank #14 (outside the top 10) — you're being out-ranked.",
"best_rank": 14,
"timestamp": "2026-07-02T12:00:00Z",
"per_keyword": [
{
"rank": 14,
"keyword": "kyb",
"scanned": 20
},
{
"rank": null,
"keyword": "compliance",
"scanned": 20
}
],
"data_freshness": {
"as_of": "2026-07-02T12:00:00Z",
"sources": [
"CDP Bazaar discovery/search (keyword-relevance rank per category)"
],
"age_seconds": 0,
"retrieved_at": "2026-07-02T12:00:00Z",
"deterministic": true
},
"recommendation": "Rank is slipping on ['compliance'] → run /agent/visibility-audit for the metadata score, prioritized fixes and a signed delta over time.",
"signed_receipt": {
"claims": {
"kind": "agent_rank_check",
"as_of": "2026-07-02T12:00:00Z",
"issuer": "x402-endpoints.onrender.com",
"seller": "api.example.com",
"best_rank": 14,
"issued_at": "2026-07-02T12:00:00Z",
"best_keyword_ranks": {
"kyb": 14,
"compliance": null
}
},
"algorithm": "ed25519",
"available": true,
"signature": "<hex>",
"public_key": "5b77...9f9d"
},
"category_keywords": [
"kyb",
"compliance",
"vat"
]
}
}Tags
x402
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