list_changes_since
Poll for what changed since a date instead of re-pulling everything: newly certified records, superseded (old->new) pairs, and reconfirmed records. Example: {"since":"2026-10-01","collection":"ok_property_permits"} returns permits certified after that date (new weekly Oklahoma City reroofing permits). Sources are re-checked weekly (Sundays, 00:00 UTC). Omitting collection scopes to ok_roofing_insurance only. Free, no API key.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| city | No | ok_property_permits only: "Norman" or "Oklahoma City" (alias jurisdiction_city accepted). | |
| since | Yes | ISO 8601 date or datetime, e.g. "2026-10-01" | |
| state | No | Two-letter state code, e.g. "OK". | |
| topic | No | Exact topic / permit type, same values as search_records. | |
| county | No | ok_property_permits only: "Cleveland" or "Oklahoma" (alias jurisdiction_county accepted). | |
| subject | No | Exact category, same values as search_records. | |
| collection | No | Which collection to poll; default ok_roofing_insurance. |