---
title: "Get Data Schema Event Properties"
method: GET
path: "/v2/charts/data-schema/event-properties"
tags: ["Charts V2"]
---

# Get Data Schema Event Properties

`GET /v2/charts/data-schema/event-properties`

## Request

- Base URL: `https://api.superwall.com`
- URL: `https://api.superwall.com/v2/charts/data-schema/event-properties`
- Auth: one of:
  - HTTP bearer
  - API key in cookie `accounts_superwall_token`
  - HTTP bearer

Lists the property keys one event has carried in production, with every JSON type each arrived as and when it last arrived. Pass an event name from Get Data Schema. The SDK's bookkeeping keys are left out. Read from pre-aggregated data. The list holds the 500 most recently seen keys; `properties_truncated` says when there are more. Requires charts:read scope.

## Query parameters

- `application_id` string, required
- `event` string, required: The event's name, as Get Data Schema lists it

## Response `200`

Success

- object
  - `object` 'data_schema_event_properties', required: Object type, always `data_schema_event_properties`
  - `event` string, required: The event's name
  - `properties` object[], required: The event's property keys, sorted by key. Empty when the app hasn't sent the event.
    - `key` string, required: The attribute's key, as the app sent it
    - `types` string[], required: Every JSON type the key has arrived as, most recently seen first. More than one means the app has sent the key with different types.
    - `last_seen_at` string, required: ISO 8601 time the key last arrived
  - `properties_truncated` boolean, required: True when the event has carried more property keys than are listed. The list holds at most 500 keys, the most recently seen.

## Other responses

- `400`: The request did not match the expected schema | The request was invalid or malformed
- `401`: No API key was provided in the request | The API key does not have a valid format | The API key is invalid or has been revoked | An error occurred while validating the API key | The session cookie is invalid or expired
- `403`: The API key does not have permission to perform this action
- `404`: The requested resource was not found
- `429`: Too many requests have been made in a short period
- `500`: An unexpected error occurred on the server

## Changes

- **2026-10-30** `4b041e865f49`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/superwall/apis/superwall-api-v2/changes/v2/charts/data-schema/event-properties/get.md)

---

[API](https://skmtc.dev/superwall/apis/superwall-api-v2.md) - [All operations](https://skmtc.dev/superwall/apis/superwall-api-v2/llms.txt) - [OpenAPI document](https://skmtc.dev/superwall/apis/superwall-api-v2/revisions/523b4734dfab?raw)