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Changelog State API – Change History for x402 Vendor
x402
Changelog State API – Change History for x402 Vendor is a paid API for AI agents from changelog-state-api.replit.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-24).
Returns detected changelog update history (new releases, version changes, date/title changes, breaking signals) for the tracked vendor 'x402'.
Price / call$0.01
Success—
StatusUnknown
How this service works
Detected changelog update history for one tracked vendor.
Output
A JSON array of changelog change records for the x402 vendor, each including the change type (e.g. new_release, version_changed, breaking_signal), detection timestamp, and relevant metadata such as version strings, titles, or dates. Supports filtering by change type and time window.
Example use cases
Breaking change alert for x402
“Have there been any breaking_signal change events detected for x402 in the past two weeks? Show me up to 50 results.”
Tracking x402 release cadence
“Pull the changelog history for x402 and list only new_release events so I can see how often they ship updates — give me the last 100 entries.”
Audit x402 changelog since a specific date
“What changelog changes were detected for x402 on or after January 1, 2025? I want version changes and title changes especially.”
Technical details
Endpoint
GEThttps://changelog-state-api.replit.app/api/monitors/x402/changes?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the historical log of all detected changes for the x402 vendor specifically, including fine-grained change types like breaking signals, version changes, and title changes. Prefer this over the 'recent releases' sibling endpoint when you need the raw change event stream rather than structured release summaries, or when you need to filter by change type or time window.
Side effects
- Invalid or unrecognized vendor slug returns empty results or 404
- 'since' timestamp in wrong format causes validation error
- limit out of range (below 1 or above 200) causes 400 error
- No changes found in specified window returns empty array
- Service unavailability returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object | Detected changelog update history (paid) |
Tags
x402
Reviews
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