---
schema_version: "1"
id: 71bbe59a0ec796b92c560ad0babf4e0607b2c3ad5102292f66248cbc3313384e
title: GET /interaction/v1/eventDefinitions/{id}
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud/guides/mc-apis/getEventDefinition.md
canonical_url: https://developer.salesforce.com/docs/marketing/marketing-cloud/references/mc_rest_interaction/getEventDefinition.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 0f9d920daba21de3c9c2eda32bed75d31d781537ca0bceabe88b687577befe53
products:
  - Marketing Cloud Engagement APIs and Programmatic Languages
  - Marketing Cloud
---
# GET /interaction/v1/eventDefinitions/{id}

## Overview

Retrieves an individual event definition by ID or key.

## URL Parameters

| Name | Type   |          | Description                                                                                                                             |
| ---- | ------ | -------- | --------------------------------------------------------------------------------------------------------------------------------------- |
| id   | string | Required | The ID of the event definition expressed in the form of a GUID (UUID). Required if not using a key.                                     |
| key  | string | Required | The key of the event definition. Required if not using an ID. Prefix the parameter with key:. For example, /eventDefinitions/key:{key}. |