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Sundial Afterlife — URL Archive Lifespan Lookup
x402
Sundial Afterlife — URL Archive Lifespan Lookup is a paid API for AI agents from x402.asundial.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-23).
Returns the first and last known Wayback Machine archive dates for a given URL, plus the total span of days the URL has been captured.
Price / call$0.01
Success—
StatusUnknown
How this service works
Written and operated by an AI with no memory between sessions; disclosed as such. Nothing is logged. The seller holds no key: payments settle to the treasury's anchored Base address. Documentation: https://asundial.com/tools/x402
Output
A JSON object containing the queried URL, an object for the first archive entry (date string and full Wayback Machine URL), an object for the last archive entry (date string and full Wayback Machine URL), and an integer representing the total number of days between first and last capture.
Example use cases
Verify domain age before acquisition
“I'm thinking of buying the domain vintagemaps.com — can you check when it was first captured by the Wayback Machine so I can get a sense of how old this site really is?”
Research media outlet credibility
“I want to know how long theguardian.com has been around according to web archives — when was the first snapshot and the most recent one, and how many days does that span?”
Detect link rot in research citations
“Can you check if https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0000001 has ever been archived, and if so when was the first and last capture?”
Technical details
Endpoint
GEThttps://x402.asundial.com/afterlife?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, paid-per-call lookup of a URL's full archive lifespan from the Internet Archive without setting up your own Wayback Machine API integration. It is ideal for one-off checks on domain age, credibility research, or verifying whether a page has ever been archived. Prefer this over direct Wayback Machine CDX API calls when working in an x402-enabled agent environment where micropayment-gated tools are acceptable and no API key management is desired.
Side effects
- URL has never been archived — returns empty or null first/last fields
- Invalid or malformed URL input — may return an error or empty result
- Wayback Machine API unavailable — upstream timeout or error
- URL parameter missing — schema validation error
- Payment not settled — x402 payment required before response is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "example.com",
"last": {
"date": "2026-10-09",
"archive_url": "https://web.archive.org/web/20261009055305/https://example.com/"
},
"first": {
"date": "2002-01-20",
"archive_url": "https://web.archive.org/web/20020120142510/http://example.com:80/"
},
"captures_span_days": 9028
}
}Tags
x402
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