GET
/
expense-categories
curl -X GET "https://api.contazen.ro/v1/expense-categories" \
  -H "Authorization: Bearer YOUR_API_KEY"

{
  "success": true,
  "categories": [
    {
      "id": 1,
      "name": "Office Supplies",
      "parent_id": 0,
      "is_default": true,
      "is_visible": true,
      "type": "system"
    },
    {
      "id": 2,
      "name": "Travel & Transportation",
      "parent_id": 0,
      "is_default": true,
      "is_visible": true,
      "type": "system",
      "children": [
        {
          "id": 15,
          "name": "Fuel",
          "parent_id": 2,
          "is_default": false,
          "is_visible": true,
          "type": "custom"
        },
        {
          "id": 16,
          "name": "Public Transport",
          "parent_id": 2,
          "is_default": false,
          "is_visible": true,
          "type": "custom"
        }
      ]
    },
    {
      "id": 3,
      "name": "Marketing",
      "parent_id": 0,
      "is_default": false,
      "is_visible": true,
      "type": "custom"
    }
  ],
  "total": 3
}

​
Overview

The List Expense Categories endpoint allows you to retrieve all expense categories available to your firm. This includes both system-provided default categories and custom categories you’ve created. Categories are hierarchical - you can have parent categories with subcategories (up to 2 levels deep).

​
Query Parameters

​
parent_id
integer
Filter by parent category ID. Use 0 to get only root-level categories, or specify a parent ID to get its subcategories.
​
include_children
boolean
default:"false"
When true, includes subcategories in the response for each parent category.
​
include_system
boolean
default:"true"
When true, includes system default categories in the response. Set to false to get only custom categories.

​
Response

​
categories
array
Array of expense category objects
​
total
integer
Total number of categories returned

​
Category Hierarchy

  • Root Categories: Categories with parent_id = 0
  • Subcategories: Categories with parent_id > 0
  • Maximum Depth: 2 levels (category → subcategory)

​
System vs Custom Categories

  • System Categories: Pre-defined categories (type: "system", is_default: true)
  • Custom Categories: User-created categories (type: "custom", is_default: false)
  • System categories cannot be modified or deleted
curl -X GET "https://api.contazen.ro/v1/expense-categories" \
  -H "Authorization: Bearer YOUR_API_KEY"

{
  "success": true,
  "categories": [
    {
      "id": 1,
      "name": "Office Supplies",
      "parent_id": 0,
      "is_default": true,
      "is_visible": true,
      "type": "system"
    },
    {
      "id": 2,
      "name": "Travel & Transportation",
      "parent_id": 0,
      "is_default": true,
      "is_visible": true,
      "type": "system",
      "children": [
        {
          "id": 15,
          "name": "Fuel",
          "parent_id": 2,
          "is_default": false,
          "is_visible": true,
          "type": "custom"
        },
        {
          "id": 16,
          "name": "Public Transport",
          "parent_id": 2,
          "is_default": false,
          "is_visible": true,
          "type": "custom"
        }
      ]
    },
    {
      "id": 3,
      "name": "Marketing",
      "parent_id": 0,
      "is_default": false,
      "is_visible": true,
      "type": "custom"
    }
  ],
  "total": 3
}

Authorizations

​
Authorization
string
header
required

Use your API key (sk_live_xxx or sk_test_xxx)

Query Parameters

​
parent_id
integer

Filter by parent category ID (0 for root categories)

​
include_children
boolean
default:false

Include child categories in response

​
include_system
boolean
default:true

Include system default categories

​
is_visible
enum<integer>

Filter by visibility

Available options:
0,
1

Response

List of categories

​
success
boolean
​
data
object[]
​
meta
object