---
title: "List Event Types"
method: GET
path: "/v1/event-types/"
tags: ["event-types", "public"]
---

# List Event Types

`GET /v1/event-types/`

List event types with aggregated statistics.

**Scopes**: `events:read` `events:write`

## Query parameters

- `organization_id` union — Filter by organization ID.
  - string, uuid4 — The organization ID.
  - string[]
- `customer_id` union — Filter by customer ID.
  - string, uuid4 — The customer ID.
  - string[]
- `external_customer_id` union — Filter by external customer ID.
  - string
  - string[]
- `query` string, nullable — Query to filter event types by name or label.
- `root_events` boolean — When true, only return event types with root events (parent_id IS NULL).
- `parent_id` string, uuid, nullable — Filter by specific parent event ID.
- `source` 'system' | 'user'
- `page` integer — Page number, defaults to 1.
- `limit` integer — Size of a page, defaults to 10. Maximum is 100.
- `sorting` EventTypesSortProperty[], nullable — Sorting criterion. Several criteria can be used simultaneously and will be applied in order. Add a minus sign `-` before the criteria name to sort by descending order.

## Response `200`

Successful Response

- ListResourceEventTypeWithStats
  - `items` EventTypeWithStats[], required
    - `id` string, uuid4, nullable — The ID of the event type. Null for system event types.
    - `created_at` string, date-time, nullable — Creation timestamp of the event type. Null for system event types.
    - `modified_at` string, date-time, nullable — Last modification timestamp of the event type. Null for system event types.
    - `name` string, required — The name of the event type.
    - `label` string, required — The label for the event type.
    - `label_property_selector` string, nullable — Property path to extract dynamic label from event metadata.
    - `organization_id` string, uuid4, required — The ID of the organization owning the event type.
    - `source` 'system' | 'user', required
    - `occurrences` integer, required — Number of times the event has occurred.
    - `first_seen` string, date-time, required — The first time the event occurred.
    - `last_seen` string, date-time, required — The last time the event occurred.
  - `pagination` Pagination, required
    - `total_count` integer, required
    - `max_page` integer, required

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/polar/apis/polar-api.md) · [All operations](https://skmtc.dev/polar/apis/polar-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/polar/polar-api/revisions/77e4ef94fcc3/schema)