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x402 Prober Census – Bazaar Listing Monitor & Crawler Index
x402
x402 Prober Census – Bazaar Listing Monitor & Crawler Index is a paid API for AI agents from store-production-8add.up.railway.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-22).
Returns a weekly-updated census of automated x402 monitors and index crawlers observed polling a Bazaar listing on Base mainnet, including their user-agent, operator, class, and quote counts.
Price / call$0.25
Success—
StatusUnknown
How this service works
Census of automated x402 monitors and index crawlers observed polling a Bazaar listing on Base mainnet: user-agent prefix, operator URL, stated purpose, class (monitor or crawler), quotes served in the observation week. Updated weekly from live terminal logs.
Output
A JSON object containing the observation window start and end dates (ISO format), a count of distinct named probers, and an array of prober records. Each record includes the prober's name, user-agent match prefix, class (monitor or crawler), operator URL (if provided), stated purpose, number of 402 quotes served, and number of distinct days seen during the week.
Example use cases
Auditing who monitors your x402 API
“Which automated monitors and crawlers have been hitting my x402-protected Bazaar listing this week? Show me their names, operator URLs, and how many payment quotes each one got.”
Identifying new index crawlers on Base
“Have any new index crawlers started polling my Bazaar listing on Base mainnet recently? I want to see the full list with their user-agent prefixes and stated purposes.”
Tracking prober activity trends
“How many distinct x402 probers were active against my Bazaar listing in the last observation window, and which ones showed up on the most days?”
Technical details
Endpoint
GEThttps://store-production-8add.up.railway.app/v1/probers?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to audit or understand the automated ecosystem polling an x402-protected Bazaar listing on Base mainnet — specifically when you want structured, named, classified records of monitors vs. crawlers with operator provenance and activity metrics, rather than raw server logs or generic traffic analytics.
Side effects
- No probers observed in the window — returns count:0 and empty probers array
- Payment not completed — x402 402 response requiring $0.25 USDC before data is returned
- Stale data if logs have not yet been processed for the current week
- Upstream log pipeline failure causing delayed or missing weekly update
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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