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PagePulse URL Change Check
x402
PagePulse URL Change Check is a paid API for AI agents from x402.167-179-80-192.sslip.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Checks whether a given HTTPS URL has changed since a previous visit by comparing its content hash
Price / call$0.005
Success—
StatusUnknown
How this service works
x402-native discovery surface for seven existing products.
Output
Returns a JSON object indicating whether the page content has changed since the previous hash was recorded, along with the current content hash of the page for future comparisons.
Example use cases
Track competitor pricing page updates
“Has https://competitor.com/pricing changed since the last check? The previous hash was 9f8e7d6c5b4a.”
Monitor government regulation page
“Check if https://regulations.gov/document/EPA-2024-001 has been updated — here's the hash from my last check: 3a2b1c0d9e8f.”
Detect blog post or news updates
“Can you see if https://techblog.example.com/posts/latest has any new content since I last looked? I don't have a previous hash, so just give me the current one.”
Technical details
Endpoint
POSThttps://x402.167-179-80-192.sslip.io/v1/pagepulse/url-change-checkWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call mechanism to detect whether a specific HTTPS URL's content has changed since a known previous state. It is ideal for polling workflows where you have a stored hash from a prior fetch and want to avoid re-downloading and comparing full page content yourself. Prefer it over general-purpose web scrapers when all you need is a boolean change signal plus a refreshed hash.
Side effects
- URL does not start with https:// — request rejected due to schema pattern validation
- URL is unreachable or returns a non-200 status — change detection cannot complete
- Previous hash format is invalid — comparison may fail or be skipped
- Rate limiting or payment failure (x402) — call is not processed
- Timeout fetching the remote URL — no result returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous_hash | — |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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