Catalyst Property Event

Triggered when a configured catalyst signal is detected on a property (e.g. pre-probate, foreclosure).

Overview

When a catalyst event is detected, Goliath sends a POST request to your configured webhook URL.

The payload includes:

• Event metadata (version, timestamp)
• Catalyst signal details
• Property details and valuation
• Ownership data
• Skip tracing results (phones, emails, relatives)

Example Payload

{
  "version": "2026-01-21",
  "triggeredAt": "2026-03-19T14:00:48.135Z",
  "catalystEvent": {
    "type": "PREPROBATE",
    "summary": "{\"city\":\"Springfield\",\"deceasedAge\":\"99\",\"deceasedDate\":\"January 1, 2026\",\"deceasedName\":\"John Doe\"}",
    "publicationDate": "2026-03-19",
    "url": "https://example.com/fake-preprobate-record.json"
  },
  "property": {
    "url": "https://app.example.com/properties/123-main-st",
    "address": "123 MAIN ST, SPRINGFIELD, USA 00000",
    "metrics": {
      "zestimate": 123456,
      "beds": 3,
      "baths": 2,
      "livingAreaSqFt": 1500,
      "lotSizeAcres": 0.15,
      "propertyType": "SINGLE_FAMILY",
      "yearBuilt": 1900,
      "occupancyStatus": "OWNER_OCCUPIED",
      "estimatedTax": 1234.56,
      "estimatedPrice": 120000,
      "estimatedRent": 1500,
      "lastSaleAmount": 50000,
      "lastSaleDate": "2000-01-01",
      "nameOnTitle": "DOE, JOHN; DOE, JANE",
      "ownerMailingAddress": "PO BOX 123, SPRINGFIELD, USA 00000"
    },
    "parcel": {
      "apn": "000-FAKE-APN",
      "countyFips": "00000",
      "legalDescription": "LOT 1, BLOCK 1, FAKE SUBDIVISION",
      "lotSqFt": 6500,
      "lotAcres": 0.15,
      "zoningCode": "FAKE-R1"
    },
    "owners": [
      {
        "type": "person",
        "name": "john doe",
        "nameOnDeed": true,
        "skipTrace": {
          "phones": [
            { "number": "5550000001", "type": "Mobile", "ranking": 1 },
            { "number": "5550000002", "type": "Residential", "ranking": 2 }
          ],
          "emails": [
            { "email": "john.doe@example.com", "ranking": 1 },
            { "email": "jd@example.com", "ranking": 2 }
          ]
        }
      }
    ],
    "skipTraceResults": [
      {
        "firstName": "John",
        "lastName": "Doe",
        "age": 99,
        "deceased": true,
        "isRelative": false,
        "isNameOnDeed": true,
        "ranking": 1,
        "phones": [
          { "number": "5550000001", "type": "Mobile", "ranking": 1 }
        ],
        "emails": [
          { "email": "john.doe@example.com", "ranking": 1 }
        ]
      },
      {
        "firstName": "Jane",
        "lastName": "Doe",
        "age": 95,
        "deceased": false,
        "isRelative": true,
        "isNameOnDeed": true,
        "ranking": 2,
        "phones": [
          { "number": "5550000003", "type": "Mobile", "ranking": 1 }
        ],
        "emails": [
          { "email": "jane.doe@example.com", "ranking": 1 }
        ]
      },
      {
        "firstName": "Jimmy",
        "lastName": "Doe",
        "age": 60,
        "deceased": false,
        "isRelative": true,
        "isNameOnDeed": false,
        "ranking": 3,
        "phones": [
          { "number": "5550000004", "type": "Mobile", "ranking": 1 }
        ],
        "emails": []
      }
    ]
  }
}

Payload Fields

Type Reference

All types used in this payload are documented in the Types section.

Notes

• Opt-in only — you will only receive this payload if your account is configured for webhook delivery.
• summary must be parsed — it is a stringified JSON object, not a nested object. Call JSON.parse() on it before accessing its fields.
• Ranking — lower ranking = higher confidence across phones, emails, and skip trace results.
• Partial data — some fields (emails, ownerMailingAddress, etc.) may be null or empty arrays.
• Relatives included — skipTraceResults may include relatives of the owner, not just the owner themselves. Use isRelative to filter.