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x402 Directory Rank Tracker
x402
x402 Directory Rank Tracker is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).
Checks the visibility and ranking position of an x402-payable API service across multiple x402 discovery directories
Price / call$0.01
Success—
StatusDown
How this service works
Low-price OpenAI-compatible GPT-5.5 chat completions and text tools over x402 USDC on Base: $0.0001 compact requests, $0.066667 true max-output requests, no subscription.
Output
Returns a JSON object with a visibilityScore (0-100), bestMatches array showing page, source, price, and first-seen position, count of checked and matched sources, whether results were sampled, and actionable recommendations to improve indexing.
Example use cases
Example prompt
“Can you check how visible and well-ranked my x402 API service 'gpt-5.5 x402' is across all the major x402 discovery directories like cdp-bazaar and x402scan, and tell me its visibility score and where it first appears?”
Technical details
Endpoint
POSThttps://gpt55.558686.xyz/v1/tools/x402-directory-rank-trackerWhen to prefer
Use this endpoint when you need to audit how discoverable a specific x402-payable API service is across decentralized x402 directories. Prefer this over manual directory checks when you want a single aggregated visibility score and ranked position data across up to 7 sources (x402.direct, cdp-bazaar, agora402, x402-list, a2alist, payai-discovery, gate402) in one call.
Side effects
- No query or identifier provided — returns error requiring at least one of: url, base_url, host, service_name, name, payTo, or query
- Directory sources unreachable — partial results returned with reduced matchedSourceCount
- timeout_ms exceeded — may return incomplete results if directories are slow to respond
- No matches found across any source — returns matchedSourceCount of 0 with recommendations
- Invalid source enum value — rejected by schema validation
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 50,
"pages": 1,
"sources": [
"x402.direct",
"cdp-bazaar"
],
"timeout_ms": 5000,
"service_name": "gpt-5-5-api"
}
},
"output": {
"type": "object",
"example": {
"ok": true,
"tool": "x402-directory-rank-tracker",
"fetchedAt": "2024-01-15T10:30:00Z"
}
}
}Output
{
"ok": false,
"tool": "x402DirectoryRankTracker",
"query": "x402",
"target": {
"url": null,
"host": null,
"payTo": null,
"serviceName": "gpt-5-5-api"
},
"sampled": true,
"sources": [
{
"ok": true,
"name": "x402.direct",
"page": null,
"total": 4019,
"status": 200,
"matched": false,
"matches": [],
"warnings": [],
"bestMatch": null,
"matchCount": 0,
"aiLikeItems": 46,
"indexOnPage": null,
"pricedItems": 50,
"checkedItems": 50,
"firstSeenPosition": null,
"queryMatchedItems": 18
},
{
"ok": true,
"name": "cdp-bazaar",
"page": null,
"total": 3,
"status": 200,
"matched": false,
"matches": [],
"warnings": [],
"bestMatch": null,
"matchCount": 0,
"aiLikeItems": 3,
"indexOnPage": null,
"pricedItems": 3,
"checkedItems": 3,
"firstSeenPosition": null,
"queryMatchedItems": 3
}
],
"warnings": [
"Ranks are sampled first-seen positions inside the requested page window, not guaranteed full-directory absolute ranks.",
"No sampled public directory source matched the target. Try adding payTo, host, service name, and x402 keywords to public metadata."
],
"fetchedAt": "2026-06-12T05:05:42.140Z",
"durationMs": 604,
"bestMatches": [],
"sampleWindow": {
"pages": 1,
"pageSize": 50,
"maxItemsPerSource": 50
},
"recommendations": [
"Provide both service URL/host and payTo in the request for stronger matching across heterogeneous directories.",
"No sampled directory matched query x402; add the service host, payTo, x402, and buyer-intent keywords to /.well-known/x402, OpenAPI tags, pricing JSON, and llms.txt.",
"CDP Bazaar did not match in this sample; verify live x402 discovery has exact/upto accepts, canonical prices, and a consistent payTo.",
"Use this tracker as a repeatable snapshot, not a promise of buyer traffic; external settlement remains the only revenue proof."
],
"visibilityScore": 0,
"competitorContext": [
{
"url": "https://bread.markets/api/tasks/available",
"name": null,
"tags": [],
"aiLike": true,
"source": "x402.direct",
"minPriceUsd": "0.01",
"queryMatched": false,
"firstSeenPosition": 1
},
{
"url": "https://orbisapi.com/proxy/x402-version-detector-api-de6459",
"name": "X402 Version Detector API",
"tags": [
"x402",
"agent-commerce",
"utility",
"agent-infra",
"x402 version detector"
],
"aiLike": true,
"source": "cdp-bazaar",
"minPriceUsd": "0.005",
"queryMatched": true,
"firstSeenPosition": 1
},
{
"url": "https://pay-prod.undercoveriris.io/audit/request",
"name": null,
"tags": [],
"aiLike": true,
"source": "x402.direct",
"minPriceUsd": "2",
"queryMatched": false,
"firstSeenPosition": 2
},
{
"url": "https://orbisapi.com/proxy/x402-market-intel-api-2cd9fa",
"name": "X402 Market Intel API",
"tags": [
"api",
"apis",
"base",
"discovery",
"explainer"
],
"aiLike": true,
"source": "cdp-bazaar",
"minPriceUsd": "0.005",
"queryMatched": true,
"firstSeenPosition": 2
},
{
"url": "https://api.gacha.fi/gachapull-base",
"name": null,
"tags": [],
"aiLike": true,
"source": "x402.direct",
"minPriceUsd": "5",
"queryMatched": false,
"firstSeenPosition": 3
},
{
"url": "https://orbisapi.com/proxy/x402-market-intel-api-b1f5d9",
"name": "X402 Market Intel API",
"tags": [
"api",
"apis",
"base",
"discovery",
"explainer"
],
"aiLike": true,
"source": "cdp-bazaar",
"minPriceUsd": "0.005",
"queryMatched": true,
"firstSeenPosition": 3
},
{
"url": "https://otaku.so/api/messaging/jobs",
"name": null,
"tags": [],
"aiLike": true,
"source": "x402.direct",
"minPriceUsd": "0.015",
"queryMatched": false,
"firstSeenPosition": 4
},
{
"url": "https://app.bountydot.money/api/tasks/available",
"name": null,
"tags": [],
"aiLike": true,
"source": "x402.direct",
"minPriceUsd": "0.01",
"queryMatched": false,
"firstSeenPosition": 5
},
{
"url": "https://slamlink-ai-main-50fbb45.d2.zuplo.dev/chain/tokens/trending",
"name": null,
"tags": [],
"aiLike": true,
"source": "x402.direct",
"minPriceUsd": "0.001",
"queryMatched": false,
"firstSeenPosition": 6
},
{
"url": "https://api.heyanon.ai/gemma-coinbase/ask",
"name": null,
"tags": [],
"aiLike": true,
"source": "x402.direct",
"minPriceUsd": "0.99",
"queryMatched": false,
"firstSeenPosition": 7
},
{
"url": "https://slamai.dev/chain/transfers",
"name": null,
"tags": [],
"aiLike": true,
"source": "x402.direct",
"minPriceUsd": "0.00025",
"queryMatched": false,
"firstSeenPosition": 8
},
{
"url": "https://x402social.xyz/api/twitter/v1/user",
"name": null,
"tags": [],
"aiLike": true,
"source": "x402.direct",
"minPriceUsd": "0.01",
"queryMatched": true,
"firstSeenPosition": 9
}
],
"checkedSourceCount": 2,
"matchedSourceCount": 0
}Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "x402DirectoryRankTracker",
"query": "gpt-5.5 x402",
"sampled": true,
"bestMatches": [
{
"page": 1,
"source": "cdp-bazaar",
"minPriceUsd": "0.0001",
"firstSeenPosition": 4
}
],
"recommendations": [
"Refresh free x402scan/Bazaar indexing after material metadata changes."
],
"visibilityScore": 58,
"checkedSourceCount": 6,
"matchedSourceCount": 3
}
}Tags
x402
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