GoHighLevel Contacts API

Get Duplicate Contact

GET/contacts/search/duplicate

GET /contacts/search/duplicate If Allow Duplicate Contact is disabled under Settings, the global unique identifier will be used for searching the contact. If the setting is enabled, first priority for search is email and the second priority will be phone It takes 3 query parameters, requires the contacts.readonly scope and authenticates with a sub-account (location) token.

Request and authentication

Method: GET
Full URL: https://services.leadconnectorhq.com/contacts/search/duplicate
Scopes: contacts.readonly
Token type: Sub-account (location) token
Accepted auth: OAuth Access Token, Private Integration Token
API version header: Version: 2021-07-28
Schema verified: 22 June 2026

Query parameters

Appended to the URL as a query string.

Name	Type	Description
`locationId`required	`string`	Example: `sadadya1u12basyhasd`
`number`	`string`	Example: `+1423164516`
`email`	`string`	Example: `abc@abc.com`

Response fields

Top-level fields returned on a successful call.

Name	Type	Description
`data`	`object`	—

Example request

Copy-paste ready. Swap YOUR_TOKEN for your access token or Private Integration Token.

curl -X GET 'https://services.leadconnectorhq.com/contacts/search/duplicate' \
  -H 'Authorization: Bearer YOUR_TOKEN' \
  -H 'Version: 2021-07-28'

Skip the schema lookup

Hylo gives your AI agent this schema — and the other 52 documented here — without you looking anything up. Ask in plain English; it picks the endpoint, fills the body, and can run the call against your own sub-account.

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