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from $20.00 / 1,000 contractor activity signals

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Contractor Activity Signals

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Turns public building-permit activity into decision-ready contractor change signals: first-seen contractors, new projects for known contractors, repeat activity, and optional watchlist matches. Not a raw permit feed -- a signal layer for deciding who needs a review, not another scraper.

Pricing

from $20.00 / 1,000 contractor activity signals

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Developer

Studio EngineerTsai

Actor stats

Bookmarked

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Monthly active users

6 days ago

Last modified

What you get

One signal per real event:

{
  "signal_type": "FIRST_SEEN_CONTRACTOR",
  "contractor": "ELEC ELECTRIC",
  "permit_id": "PDS2023-RESALT-015757",
  "current_activity": "Existing Residential Main Electrical Service Upgrade - 200A",
  "first_seen": true,
  "changed_state": "NEW",
  "source": "https://data.sandiegocounty.gov/resource/dyzh-7eat.json",
  "observed_at": "2026-08-30T10:00:44Z",
  "review_reason": "contractor not seen in the prior baseline window -- first real activity observed",
  "insurance_status": "NOT_OBSERVED"
}

Real output, from a real run against San Diego County's public data: 303 permits in the current window, 140 distinct contractors, 473 signals, 71 of them genuinely first-seen.

Signal types

Signal	Meaning
`FIRST_SEEN_CONTRACTOR`	This contractor didn't appear in the baseline window
`NEW_PROJECT_FOR_CONTRACTOR`	A contractor already active in the baseline has a new permit
`ACTIVITY_CHANGE`	This contractor has more than one permit in the current window
`WATCHLIST_CONTRACTOR_ACTIVITY`	The permit matches a name you're watching for

What this Actor does NOT claim

insurance_status is always "NOT_OBSERVED". This Actor has no certificate-of-insurance data source. A signal means "this activity may be worth a compliance review," never "this contractor is compliant" or "non-compliant." Don't use it as a substitute for actually checking.

Input

Field	Required	Description
`socrataHost` / `resourceId`	no (defaults to San Diego County)	Any Socrata county/city portal
`currentWindowDays`	no (default 14)	What counts as "current" activity
`baselineWindowDays`	no (default 90)	Comparison window immediately before "current"
`watchlist`	no	Contractor name fragments to flag specifically

Windows are relative to the dataset's own most recent record, not today's date — this works correctly whether your source portal updates daily or is a static archive.

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