# List available event types

**Documentation:** /reference/api-reference/webhooks/getWebhookSubscriptionsEventTypes

Returns all event types that can be subscribed to, along with their supported webhook versions.

---

## GET `/api/v3/webhook_subscriptions/event_types`

**Endpoint:** `https://backend.composio.dev/api/v3/webhook_subscriptions/event_types`

**Summary:** List available event types

Returns all event types that can be subscribed to, along with their supported webhook versions.

### Authentication

**ApiKeyAuth** - API Key in `header` header `x-api-key` OR **UserApiKeyAuth** - API Key in `header` header `x-user-api-key`

### Responses

#### 200 - Event types retrieved

**Response Schema:**

- `items` (array<object>) *(required)*
  - Array items:
    - `event_type` (string) *(required)*: Event type identifier
    - `description` (string) *(required)*: Human-readable description of the event
    - `supported_versions` (array<enum: "V1" | "V2" | "V3">) *(required)*: Webhook versions that support this event

**Example Response:**

```json
{
  "items": [
    {
      "event_type": "string",
      "description": "string",
      "supported_versions": [
        "..."
      ]
    }
  ]
}
```

#### 401 - Unauthorized

**Response Schema:**

- `error` (object) *(required)*
  - `message` (string) *(required)*
  - `code` (number) *(required)*
  - `slug` (string) *(required)*
  - `status` (number) *(required)*
  - `request_id` (string)
  - `suggested_fix` (string)
  - `errors` (array<string>)

#### 500 - Internal server error

**Response Schema:**

- `error` (object) *(required)*
  - `message` (string) *(required)*
  - `code` (number) *(required)*
  - `slug` (string) *(required)*
  - `status` (number) *(required)*
  - `request_id` (string)
  - `suggested_fix` (string)
  - `errors` (array<string>)

### Example cURL Request

```bash
curl -X GET "https://backend.composio.dev/api/v3/webhook_subscriptions/event_types" \
  -H "x-api-key: YOUR_API_KEY"
```