---
title: "List all ServerAttributeDefinitions of a universe."
method: GET
path: "/matchmaking-api/v1/matchmaking/server-attributes/{universeId}"
tags: ["Matchmaking"]
---

# List all ServerAttributeDefinitions of a universe.

`GET /matchmaking-api/v1/matchmaking/server-attributes/{universeId}`

## Path parameters

- `universeId` integer, required

## Response `200`

Success

- ListMatchmakingServerAttributeDefinitionsResponse — The response for listing matchmaking server attribute definitions.
  - `serverAttributeSchema` MatchmakingServerAttributeDefinition[], nullable — All ServerAttributeDefinitions for a universe.
    - `id` string, nullable — The id of the attribute.
    - `universeId` integer — The universe id of the attribute.
    - `name` string, nullable — The name of the attribute.
    - `dataType` 'Invalid' | 'Bool' | 'Number' | 'String' — Data type of a matchmaking attribute. Can be a bool, number, or string.
    - `defaultValue` MatchmakingServerAttributeDefaultValue — Describes how the server attribute value should be derived
      - `sourceCase` 'Invalid' | 'Constant' | 'PlayerAttributeReference' — The storage solution used for this MatchmakingPlayerAttributeDefinition.
      - `constant` MatchmakingAttributeValue — Matchmaking attribute value object for matchmaking rules.
        - `boolValue` boolean, nullable — Bool value of the attribute. One of BoolValue, NumericValue, or StringValue must be set.
        - `numericValue` number, double, nullable — Double value of the attribute. One of BoolValue, NumericValue, or StringValue must be set.
        - `stringValue` string, nullable — String value of the attribute. One of BoolValue, NumericValue, or StringValue must be set.
        - `type` 'Invalid' | 'Bool' | 'Number' | 'String' — Matchmaking attribute value type.
      - `playerAttributeReference` MatchmakingAttributeReference — Matchmaking attribute reference object for matchmaking rules.
        - `id` string, nullable — The id of the attribute.
    - `createdTime` string, date-time — The aggregation function of the attribute.
    - `updatedTime` string, date-time — The time the attribute was last updated.

---

[API](https://skmtc.net/roblox/apis/roblox-api.md) · [All operations](https://skmtc.net/roblox/apis/roblox-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/roblox/roblox-api/versions/756260310407/schema)