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Web Compare: Side-by-Side URL Comparison
x402
Web Compare: Side-by-Side URL Comparison is a paid API for AI agents from cr4vvol.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Fetches and compares the content of two web pages, returning a structured diff or comparison of their content
Price / call$0.05
Success—
StatusUnknown
How this service works
Web scraping and search for AI agents. No auth, no subscriptions. Pay per request in USDC via x402.
Output
Returns a JSON object with a 'success' boolean and a 'data' object containing the comparison results between the two fetched URLs, likely including extracted content and differences between the two pages.
Example use cases
Example prompt
“Can you compare these two product pages and tell me what's different between them: https://example.com/product-v1 and https://example.com/product-v2?”
Technical details
Endpoint
POSThttps://cr4vvol.vercel.app/api/compareWhen to prefer
Use this endpoint when you need to programmatically compare the content of two web pages without setting up auth or subscriptions — pay-per-use via USDC makes it ideal for one-off or low-frequency comparisons. Best for agents that need to detect changes, differences, or similarities between two live URLs on demand.
Side effects
- One or both URLs are unreachable or return non-200 status — comparison may fail or return partial data
- URLs point to non-HTML content (PDFs, images) — extraction may fail or return unexpected results
- Payment of $0.05 USDC via x402 not completed — request rejected
- Malformed or missing urlA/urlB parameters — validation error
- Target pages block scrapers via bot detection — content may be incomplete
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlArequired | string | First URL |
| urlBrequired | string | Second URL |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| success | boolean |
Tags
x402
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