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stall-row Recheck Pack Purchase
x402
stall-row Recheck Pack Purchase is a paid API for AI agents from stall-row-production.up.railway.app, paid per call via x402, $1/call, status unknown (last checked 2026-10-30).
Purchases a 250-credit monitoring pack for $1 USDC that enables discounted change-checks on a single endpoint over 90 days
Price / call$1
Success—
StatusUnknown
How this service works
Recheck watch pack: one $1.00 payment buys 250 change-checks for ONE endpoint ($0.004 per check instead of $0.005), good for 90 days. Pack credits persist across redeploys on the service volume. Returns an unguessable pack id — spend credits via POST /v1/recheck (body pack_id or X-Recheck-Pack header), and read the balance free at POST /v1/recheck/pack-balance. Use this when a monitoring loop checks the same endpoint on a schedule and wants one payment instead of hundreds.
Output
Returns an unguessable pack_id string representing 250 prepaid change-check credits tied to one monitored URL, valid for 90 days. The pack_id can be passed as body field pack_id or X-Recheck-Pack header in subsequent POST /v1/recheck calls. Credit balance can be read for free at POST /v1/recheck/pack-balance. Credits persist across redeploys on the service volume.
Example use cases
Scheduled uptime monitor on a budget
“I want to check whether https://myapp.com/health changes every 10 minutes for the next 3 months — can you buy a recheck pack for that URL so I'm not paying separately for each check?”
Price-change tracker for a product page
“Set up bulk change-detection credits for https://shop.example.com/product/42 — I need to check it a couple hundred times over 90 days and want the discounted pack rate.”
Agent workflow with recurring endpoint checks
“My agent needs to poll https://api.partner.com/v2/status on a schedule — go ahead and purchase a 250-credit recheck pack for that URL so the workflow uses one payment instead of hundreds.”
Technical details
Endpoint
POSThttps://stall-row-production.up.railway.app/v1/recheck/pack?utm_source=zero.xyzWhen to prefer
Use this endpoint when a monitoring loop or scheduled agent needs to check the same URL repeatedly over time (dozens to hundreds of times) and you want a single upfront $1 payment at $0.004/check rather than paying $0.005 per individual check. Ideal for 90-day monitoring windows and automation workflows that would otherwise trigger hundreds of separate micro-payments.
Side effects
- Payment failure or insufficient USDC balance — pack is not created and no pack_id is returned
- Invalid or missing URL in request body — likely 400 error
- Attempting to use a pack_id for a different URL than the one it was purchased for — credits not consumed or rejected
- Pack expiry after 90 days — remaining credits become invalid
- Network timeout during purchase — payment may be deducted without pack_id being returned, requiring manual support
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string |
Tags
x402
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