Roblox Engine API

Roblox provides a suite of developer APIs for building experiences on the Roblox platform. The Engine API documents all classes, data types, enumerations, functions, events, callbacks, and properties for in-experience scripting in Luau. The Open Cloud REST API provides external programmatic access to Roblox platform resources including experiences, places, data stores, users, groups, assets, messaging, and more. In March 2026, Roblox launched new unified Open Cloud reference documentation.

Website: https://www.roblox.com

Developer Portal: https://create.roblox.com

Developer Forum: https://devforum.roblox.com

APIs

Roblox Engine API

The Roblox Engine API documents all classes, data types, enumerations, global functions, variables, and libraries available when scripting Roblox experiences in Luau.

• Documentation: https://create.roblox.com/docs/reference/engine

Roblox Open Cloud API

The Roblox Open Cloud API is a REST API providing external programmatic access to Roblox platform resources. Authentication uses API keys scoped to specific resources via the x-api-key header.

• Base URL: https://apis.roblox.com
• Authentication: API Key (x-api-key header)
• Documentation: https://create.roblox.com/docs/cloud/reference
• OpenAPI Spec: https://create.roblox.com/docs/cloud/reference/openapi

Key Endpoints

Method	Path	Description
GET	/cloud/v2/universes/{universeId}	Get experience details
PATCH	/cloud/v2/universes/{universeId}	Update experience settings
POST	/cloud/v2/universes/{universeId}:restart-servers	Restart all game servers
GET	/cloud/v2/universes/{universeId}/places/{placeId}	Get place details
POST	/universes/v1/{universeId}/places/{placeId}/versions	Publish a place
GET	/datastores/v1/universes/{universeId}/standard-datastores	List data stores
POST	/datastores/v1/universes/.../entries/entry	Set data store entry
POST	/messaging-service/v1/universes/{universeId}/topics/{topic}	Publish message
GET	/cloud/v2/users/{userId}	Get user information
GET	/cloud/v2/groups/{groupId}	Get group information
PATCH	/cloud/v2/universes/{universeId}/user-restrictions/{userId}	Ban/unban player

Artifacts

OpenAPI Specifications

Spec	Description
openapi/roblox-open-cloud-openapi.yml	Roblox Open Cloud API — universes, places, data stores, messaging, users, groups

Spectral Rules

Ruleset	Description
rules/roblox-open-cloud-rules.yml	Roblox Open Cloud linting rules enforcing x-api-key auth and camelCase conventions

Capabilities

Capability	Description
capabilities/experience-management.yaml	Unified workflow for Roblox experience management including moderation and data stores
capabilities/shared/open-cloud.yaml	Shared Open Cloud API consumed definition

JSON Schemas

Schema	Description
json-schema/roblox-universe-schema.json	Roblox universe (experience) resource
json-schema/roblox-user-schema.json	Roblox user resource from Open Cloud

JSON Structure

Structure	Description
json-structure/roblox-universe-structure.json	Field documentation for the universe object

JSON-LD Context

Context	Description
json-ld/roblox-engine-api-context.jsonld	Linked data context mapping Roblox platform terms to schema.org

Examples

Example	Description
examples/roblox-get-universe-example.json	Get universe details with request/response
examples/roblox-set-datastore-entry-example.json	Set a data store entry with player data

Vocabulary

Vocabulary	Description
vocabulary/roblox-engine-api-vocabulary.yml	Roblox platform terms including Universe, DataStore, Luau, OpenCloud, UserRestriction

Tags

Gaming, Game Development, Metaverse, Roblox, Open Cloud

Maintainers

FN: Kin Lane

Email: kin@apievangelist.com