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Changelog State API – OpenZeppelin Change History
x402
Changelog State API – OpenZeppelin 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 2026-10-24).
Returns detected changelog update history (new releases, version changes, date changes, title changes, breaking signals) for the OpenZeppelin vendor.
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 records for OpenZeppelin, each including the change type (new_release, version_changed, date_changed, title_changed, breaking_signal), detection timestamp, and associated metadata about the release or update event.
Example use cases
Track OpenZeppelin breaking changes
“Have there been any breaking changes detected in OpenZeppelin's changelog in the last month? Show me up to 20 results.”
Monitor new OpenZeppelin releases
“What new releases has OpenZeppelin put out recently? Pull the changelog update history filtered to new_release events, last 30 days.”
Audit OpenZeppelin version changes for security review
“I need to audit all version changes and breaking signals detected for OpenZeppelin since January 1st — can you pull that changelog history for me?”
Technical details
Endpoint
GEThttps://changelog-state-api.replit.app/api/monitors/openzeppelin/changes?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to track historical changelog mutations (not just the latest releases) for OpenZeppelin specifically, especially when you care about detecting breaking signals, title changes, or date adjustments alongside new releases. Prefer this over the releases endpoint when your goal is auditing what changed in the changelog metadata itself, not just what was released.
Side effects
- Invalid or unknown vendor slug returns no data or 404
- 'since' timestamp in wrong format returns 400
- limit exceeding 200 returns validation error
- Payment failure (x402) blocks access to paid response
- No changes in specified window returns empty array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object | Detected changelog update history (paid) |
Tags
x402
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