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Internet Archive Wayback Snapshot Comparison
x402
Internet Archive Wayback Snapshot Comparison is a paid API for AI agents from x402-zoo.lolagent.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Fetches two Wayback Machine snapshots near caller-supplied dates for a URL and returns the snapshot URLs plus textual evidence of changes between them.
Price / call$0.05
Success—
StatusUnknown
How this service works
Compare two Internet Archive Wayback snapshots near caller-supplied dates and return snapshot URLs and textual change evidence.
Output
Returns two Wayback Machine snapshot URLs (one nearest to date_a, one nearest to date_b) along with textual change evidence — typically a diff or summary of added, removed, or modified text found between the two archived versions of the page.
Example use cases
Verify terms of service changes
“Check if the terms of service at https://acme-corp.com/terms changed between March 15 2022 and March 15 2023 — I need to see what was actually different in the archived snapshots.”
Track competitor landing page evolution
“Pull the Wayback snapshots of https://competitor.io from June 1 2021 and June 1 2022 and show me the textual differences between those two dates.”
Research policy update evidence
“I need evidence that https://socialmedia-platform.com/privacy was updated between January 2020 and January 2021 — can you grab the two nearest archived snapshots and compare the text?”
Technical details
Endpoint
GEThttps://x402-zoo.lolagent.workers.dev/api/website-evidenceWhen to prefer
Choose this endpoint when you need to compare two specific historical versions of a webpage using Internet Archive snapshots, especially when you need both the archived snapshot URLs and textual change evidence in a single call. Prefer this over live-page monitoring tools when the comparison involves past dates rather than current vs. prior state.
Side effects
- No Wayback snapshot exists near one or both supplied dates — endpoint may return an error or empty snapshot
- URL has never been crawled by the Internet Archive — no snapshots available
- Invalid date format in date_a or date_b parameters
- Target URL is malformed or unreachable by the Wayback CDX API
- Rate limiting or availability issues from the Internet Archive
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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