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Changelog State API – Change History for Foundry
x402
Changelog State API – Change History for Foundry 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 2026-10-17).
Returns the detected changelog update history (change events) for the Foundry vendor, filterable by change type, date, and count.
Price / call$0.01
Success—
StatusUnknown
How this service works
Detected changelog update history for one tracked vendor.
Output
A JSON array of detected changelog change events for the Foundry vendor, each including the change type (e.g. new_release, version_changed, date_changed, title_changed, breaking_signal), the detection timestamp, and relevant metadata about what changed in the changelog.
Example use cases
Breaking change alert for Foundry
“Have there been any breaking changes detected in Foundry's changelog in the past 30 days? Show me up to 20 results.”
Tracking Foundry version bumps
“Pull all version_changed events recorded for Foundry since March 1st 2025 — I want to know every time a version number shifted.”
New release monitoring for Foundry
“Check if Foundry has had any new releases logged in their changelog recently — filter to new_release events and give me the last 10.”
Technical details
Endpoint
GEThttps://changelog-state-api.replit.app/api/monitors/foundry/changes?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the raw history of detected changelog mutations for the Foundry vendor specifically — particularly when you want to filter by change type (breaking signals, new releases, version bumps) or look at changes after a specific date. Prefer this over the 'recent releases' sibling endpoint when you need change-event-level granularity rather than structured release summaries.
Side effects
- Invalid or unknown vendor slug returns no data or an error
- 'since' timestamp in wrong format returns a validation error
- Requesting a limit above 200 is rejected
- If Foundry has no detected changes in the requested window, an empty result set is returned
- Payment failure (x402) blocks access to results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object | Detected changelog update history (paid) |
Tags
x402
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