Quickstart
Pull your first parcel records in under two minutes.
1. Get an API key
Sign in to your tracts.ai account and go to Dashboard → API Keys (/dashboard/keys). Create a new key, give it a label, and copy it — you won't be able to see it again.
2. Make your first request
Replace YOUR_API_KEY and YOUR_COUNTY with real values. County names use the format "Name, ST" — for example "Hillsborough, FL".
curl -G https://api.tracts.ai/parcels \
--data-urlencode 'county=Hillsborough, FL' \
--data-urlencode 'limit=5' \
-H 'x-api-key: YOUR_API_KEY'3. Read the response
A successful response looks like this:
{
"data": [
{
"provenance": {
"countyFips": "12057",
"countyName": "Hillsborough County",
"state": "FL",
"source": "arcgis",
"sourceUrl": "https://services.arcgis.com/.../FeatureServer/0",
"fetchedAt": "2026-06-30T00:00:00.000Z"
},
"apn": "U-01-29-18-ZZZ-000000-00000.0",
"altId": null,
"ownerName": "SMITH JOHN A",
"ownerName2": null,
"mailingAddress": "456 Out-of-State Rd",
"mailingCity": "Atlanta",
"mailingState": "GA",
"mailingZip": "30301",
"situsAddress": "123 Main St",
"situsCity": "Tampa",
"situsState": "FL",
"situsZip": "33602",
"landUse": "SINGLE FAMILY",
"yearBuilt": 1985,
"livingAreaSqft": 1820,
"assessedValue": 485000,
"marketValue": 520000,
"landValue": 120000,
"improvementValue": 365000,
"taxYear": 2025,
"lastSaleDate": "2020-05-14",
"lastSalePrice": 410000,
"absenteeOwner": true,
"raw": {}
}
],
"meta": {
"county": "Hillsborough County",
"state": "FL",
"source": "arcgis",
"sourceUrl": "https://services.arcgis.com/.../FeatureServer/0",
"total": null,
"returned": 5,
"pulledAt": "2026-06-30T00:00:00.000Z"
}
}The meta object tells you where the response came from and when it was pulled. Each record also carries its own provenance block. meta.total is null on API calls because the endpoint skips expensive county-wide count queries for faster responses.
Next steps
- Authentication — manage keys and understand headers
- Rate limits — understand per-key throttling
- Counties reference — list available counties
- Parcels reference — full parameter and field reference