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The Custom Fields V2 API lets you define and manage custom field schemas attached to standard objects — such as companies — and custom objects within your HoopAI Platform account. You can create fields of many data types (text, numeric, date, file upload, selection options, and more), organize them into folders, and retrieve or delete them programmatically.

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Base URL

https://services.leadconnectorhq.com

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Authentication

Every request must include a bearer token in the Authorization header and the API version in the Version header. 
Authorization: Bearer <access_token>
Version: 2021-07-28
Use an access token generated for a Account user type, or a Private Integration Token scoped to the account.

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OAuth scopes

ScopeAccess
locations/customFields.readonlyRead custom fields and folders
locations/customFields.writeCreate, update, and delete custom fields and folders

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Quick start

Retrieve all custom fields for a custom object: 
curl -X GET "https://services.leadconnectorhq.com/custom-fields/object-key/custom_objects.pet?locationId=ve9EPM428h8vShlRW1KT" \
  -H "Authorization: Bearer <access_token>" \
  -H "Version: 2021-07-28"

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Endpoints

MethodPathDescription
POST/custom-fields/Create Custom Field
GET/custom-fields/{id}Get Custom Field / Folder By Id
PUT/custom-fields/{id}Update Custom Field By Id
DELETE/custom-fields/{id}Delete Custom Field By Id
GET/custom-fields/object-key/{objectKey}Get Custom Fields By Object Key
POST/custom-fields/folderCreate Custom Field Folder
PUT/custom-fields/folder/{id}Update Custom Field Folder Name
DELETE/custom-fields/folder/{id}Delete Custom Field Folder
Last modified on March 5, 2026