OpenAPI 3.0.3Proprietary2026-08-1257141294.5 KB

8e73704e30b0

Signals

Score Contacts by Signal Activity

Score contacts by their active buying signals. Returns the aggregate Signal Score - a [0, 1] value - plus the active signal breakdown per contact.

Accepts up to 100 contacts. Each contact is resolved to a Lusha person ID and company ID server-side (identity only - no PII is revealed) before scoring. Provide one of:

  • id (encrypted Lusha contact ID)
  • linkedinUrl
  • email
  • firstName + lastName + (companyName or companyDomain)

Each result is one of:

  • A scored entry - signalScore, signalTypes, and noActiveSignals.
  • A NOT_FOUND entry - identity resolution failed for the supplied identifier.
  • A NO_SCORE entry - the contact resolved, but the scoring engine returned nothing for it.

Note: A full outage of the identity-resolution provider is never masked as NOT_FOUND - it returns a retryable 502 instead, so callers can retry rather than treating the batch as authoritatively unresolved.

Billing: 1 credit is charged per scored row via signal_score_contact_reveal. This action is currently limited-availability - while it isn't yet seeded on an account's pricebook, the endpoint stays free (billing.creditsCharged is 0). Error rows (NOT_FOUND / NO_SCORE) are never charged.

post/v3/contacts/signal-score

Request body

Example request

{
  "contacts": [
    {
      "clientReferenceId": "ref-1",
      "id": "v1.AbCdEfGhIjKlMnOpQrStUvWxYz012345",
      "linkedinUrl": "https://linkedin.com/in/johndoe",
      "email": "jane.doe@acme.com",
      "firstName": "Jane",
      "lastName": "Doe",
      "companyName": "Acme Corp",
      "companyDomain": "acme.com"
    }
  ]
}

Response

Successful response

requestIdstring uuid

Example response

{
  "requestId": "5d6f13d2-f6b0-4e55-85d5-04e17f932c1a",
  "results": [
    {
      "clientReferenceId": "ref-1",
      "id": "v1.AbCdEfGhIjKlMnOpQrStUvWxYz012345",
      "fullName": "Jane Doe",
      "company": {
        "id": "v1.6789ZyXwVuTsRqPoNmLkJiHgFeDcBa01",
        "name": "Acme Corp",
        "domain": "acme.com"
      },
      "signalScore": 0.3,
      "signalTypes": [
        "promotion"
      ],
      "error": {
        "code": "NOT_FOUND",
        "message": "Contact not found"
      }
    }
  ],
  "billing": {
    "creditsCharged": 3,
    "resultsReturned": 1
  }
}