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Changelog State API – HuggingFace Change History
x402
Changelog State API – HuggingFace Change History 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 2026-09-14).
Returns detected changelog update history (new releases, version changes, breaking signals, etc.) for the HuggingFace vendor track.
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 HuggingFace vendor, each including the detected change type (e.g. new_release, version_changed, breaking_signal), the timestamp when the change was detected, and relevant metadata such as release title or version string. Results are ordered by detection time and can be filtered and paginated.
Example use cases
Breaking change alert for HuggingFace
“Check if there have been any breaking signals detected in HuggingFace's changelog in the last 30 days — show me up to 20 results.”
Weekly release digest for HuggingFace
“Get me all new_release changelog events detected for HuggingFace since last Monday, up to 100 entries, so I can review what shipped this week.”
Version drift monitoring for AI stack
“Have there been any version_changed or date_changed events in HuggingFace's changelog since March 1, 2025? I need to know if anything in our dependencies might have shifted.”
Technical details
Endpoint
GEThttps://changelog-state-api.replit.app/api/monitors/huggingface/changesWhen to prefer
Choose this endpoint when you need a historical log of detected changelog changes for HuggingFace specifically — especially when you want to filter by change type (new_release, breaking_signal, etc.) or query changes since a specific point in time. Prefer this over release-listing endpoints when you care about the detection event itself (when a change was noticed) rather than structured release metadata.
Side effects
- Invalid or unrecognized vendor slug returns an error or empty result
- since parameter with malformed datetime format causes a 400 validation error
- limit exceeding 200 returns a validation error
- Payment not attached or insufficient USDC balance causes a 402 Payment Required response
- Vendor not currently tracked returns an empty changes array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object | Detected changelog update history (paid) |
Tags
x402
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