Quickstart

export QUOIN_KEY="qk_..."

curl -G "https://developer.quoindata.com/api/v4/find" \
  -H "Authorization: Bearer $QUOIN_KEY" \
  --data-urlencode "q=123 Main St"

{
  "status": "ok",
  "data": {
    "items": [
      {
        "q_id": "addr_01a12e0d-2ece-77ad-b5b0-430ab9658f29",
        "type": "addr",
        "label": "123 MAIN ST",
        "jurisdiction": "12345",
        "matched_on": "address"
      }
    ]
  }
}

curl "https://developer.quoindata.com/api/v4/entities/addr_01a12e0d-2ece-77ad-b5b0-430ab9658f29/connected" \
  -H "Authorization: Bearer $QUOIN_KEY"

curl "https://developer.quoindata.com/api/v4/entities/parc_5df9c647-c1fe-6e85-1690-a0710b870cfb/summary" \
  -H "Authorization: Bearer $QUOIN_KEY" \
  -H "Idempotency-Key: $(uuidgen)"

{
  "status": "ok",
  "data": {
    "q_id": "parc_5df9c647-c1fe-6e85-1690-a0710b870cfb",
    "items": [
      {
        "field": "year_built",
        "label": "Year built",
        "value": "1949",
        "citation": {
          "source": "County assessor",
          "dataset": "Residential building characteristics",
          "as_of": "2026-10-12"
        },
        "record_ref": "rec_6a19a8b5-7071-6911-26d9-1840798daae9",
        "alternatives": []
      }
    ]
  }
}