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.

Roblox Engine API publishes 7 APIs on the APIs.io network, including Assets API, Data Stores API, Groups API, and 4 more. Tagged areas include Gaming, Game Development, Metaverse, Roblox, and Open Cloud.

The Roblox Engine API catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Roblox Engine API’s developer surface includes authentication, documentation, GitHub presence, engineering blog, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

41.4/100 developing ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

Gaming Game Development Metaverse Roblox Open Cloud

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 41.4/100 · developing

Contract Quality 15.5 / 23

Developer Ergonomics 5.8 / 18

Access Clarity 6.6 / 18

Operational Transparency 1.5 / 12

Contract Governance 3.1 / 11

Discoverability 5.3 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/roblox-engine-api: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 8

Individual APIs this provider publishes, each with its own machine-readable definition.

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. This is th...

Roblox Engine API Assets API

Asset management and operations

Roblox Engine API Data Stores API

Persistent data storage for experiences

Roblox Engine API Groups API

Roblox group management

Roblox Engine API Messaging API

Cross-server messaging service

Roblox Engine API Places API

Place publishing and management

Roblox Engine API Universes API

Experience (universe) management

Roblox Engine API Users API

Roblox user information

Scroll for all 8

Postman Collections 7

Ready-to-run Postman collections for exercising this provider's APIs.

Roblox Open Cloud Assets API

POSTMAN

Roblox Open Cloud Assets Data Stores API

POSTMAN

Roblox Open Cloud Assets Groups API

POSTMAN

Roblox Open Cloud Assets Messaging API

POSTMAN

Roblox Open Cloud Assets Places API

POSTMAN

Roblox Open Cloud Assets Universes API

POSTMAN

Roblox Open Cloud Assets Users API

POSTMAN

Scroll for all 7

Open Collections 9

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Roblox Open Cloud Assets API

OPEN COLLECTION

Roblox Open Cloud Assets Data Stores API

OPEN COLLECTION

Roblox Open Cloud Assets Groups API

OPEN COLLECTION

Roblox Open Cloud Assets Messaging API

OPEN COLLECTION

Roblox Open Cloud Assets Places API

OPEN COLLECTION

Roblox Open Cloud Assets Universes API

OPEN COLLECTION

Roblox Open Cloud Assets Users API

OPEN COLLECTION

Roblox Open Cloud API

OPEN COLLECTION

Scroll for all 9

Pricing Plans 1

Published pricing tiers and plan structures.

Roblox Engine Api Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Roblox Engine Api Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Roblox Engine Api Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Roblox Engine Api Context

30 classes · 0 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Roblox Engine API API Rules

5 rules · 3 warnings 2 info

SPECTRAL

Roblox Engine API API Rules

11 rules · 2 errors 5 warnings 4 info

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Roblox Universe

7 properties

JSON SCHEMA

Roblox User

9 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Roblox Universe Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Roblox Get Universe Example

2 fields

EXAMPLE

Roblox Set Datastore Entry Example

2 fields

EXAMPLE

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Roblox Engine Api Authentication

apiKey · 1 scheme

SECURITY

Roblox Engine Api Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Roblox Engine Api Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Roblox Engine Api Agentic Access

21 operations · 10 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

JSONLDContext

JSONLDContext

Vocabulary

Vocabulary

Build 2

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHub

GitHub

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

DevForum

DevForum

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: roblox-engine-api
name: Roblox Engine API
description: 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.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/roblox-engine-api.png
tags:
- Gaming
- Game Development
- Metaverse
- Roblox
- Open Cloud
url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/apis.yml
created: '2024-11-07'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: roblox-engine-api:roblox-engine-api
  name: Roblox Engine API
  description: The Roblox Engine API documents all classes, data types, enumerations, global functions, variables, and libraries
    available when scripting Roblox experiences in Luau. This is the primary reference for in-engine development covering
    services, instances, and platform behaviors.
  humanURL: https://create.roblox.com/docs/reference/engine
  tags:
  - Gaming
  - Luau
  - Scripting
  - Engine
  properties:
  - type: Documentation
    url: https://create.roblox.com/docs/reference/engine
- aid: roblox-engine-api:roblox-engine-api-assets-api
  name: Roblox Engine API Assets API
  description: Asset management and operations
  humanURL: https://create.roblox.com/docs/reference/engine
  baseURL: https://apis.roblox.com
  tags:
  - Assets
  properties:
  - type: OpenAPI
    url: openapi/roblox-engine-api-assets-api-openapi.yml
  - type: Documentation
    url: https://create.roblox.com/docs/cloud/reference
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/rules/roblox-open-cloud-rules.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-universe-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-user-schema.json
- aid: roblox-engine-api:roblox-engine-api-data-stores-api
  name: Roblox Engine API Data Stores API
  description: Persistent data storage for experiences
  humanURL: https://create.roblox.com/docs/reference/engine
  baseURL: https://apis.roblox.com
  tags:
  - Datastores
  tags_raw:
  - Data Stores
  properties:
  - type: OpenAPI
    url: openapi/roblox-engine-api-data-stores-api-openapi.yml
  - type: Documentation
    url: https://create.roblox.com/docs/cloud/reference
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/rules/roblox-open-cloud-rules.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-universe-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-user-schema.json
- aid: roblox-engine-api:roblox-engine-api-groups-api
  name: Roblox Engine API Groups API
  description: Roblox group management
  humanURL: https://create.roblox.com/docs/reference/engine
  baseURL: https://apis.roblox.com
  tags:
  - Group
  tags_raw:
  - Groups
  properties:
  - type: OpenAPI
    url: openapi/roblox-engine-api-groups-api-openapi.yml
  - type: Documentation
    url: https://create.roblox.com/docs/cloud/reference
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/rules/roblox-open-cloud-rules.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-universe-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-user-schema.json
- aid: roblox-engine-api:roblox-engine-api-messaging-api
  name: Roblox Engine API Messaging API
  description: Cross-server messaging service
  humanURL: https://create.roblox.com/docs/reference/engine
  baseURL: https://apis.roblox.com
  tags:
  - Messaging
  properties:
  - type: OpenAPI
    url: openapi/roblox-engine-api-messaging-api-openapi.yml
  - type: Documentation
    url: https://create.roblox.com/docs/cloud/reference
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/rules/roblox-open-cloud-rules.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-universe-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-user-schema.json
- aid: roblox-engine-api:roblox-engine-api-places-api
  name: Roblox Engine API Places API
  description: Place publishing and management
  humanURL: https://create.roblox.com/docs/reference/engine
  baseURL: https://apis.roblox.com
  tags:
  - Places
  properties:
  - type: OpenAPI
    url: openapi/roblox-engine-api-places-api-openapi.yml
  - type: Documentation
    url: https://create.roblox.com/docs/cloud/reference
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/rules/roblox-open-cloud-rules.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-universe-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-user-schema.json
- aid: roblox-engine-api:roblox-engine-api-universes-api
  name: Roblox Engine API Universes API
  description: Experience (universe) management
  humanURL: https://create.roblox.com/docs/reference/engine
  baseURL: https://apis.roblox.com
  tags:
  - Universes
  properties:
  - type: OpenAPI
    url: openapi/roblox-engine-api-universes-api-openapi.yml
  - type: Documentation
    url: https://create.roblox.com/docs/cloud/reference
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/rules/roblox-open-cloud-rules.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-universe-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-user-schema.json
- aid: roblox-engine-api:roblox-engine-api-users-api
  name: Roblox Engine API Users API
  description: Roblox user information
  humanURL: https://create.roblox.com/docs/reference/engine
  baseURL: https://apis.roblox.com
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/roblox-engine-api-users-api-openapi.yml
  - type: Documentation
    url: https://create.roblox.com/docs/cloud/reference
  - type: SpectralRules
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/rules/roblox-open-cloud-rules.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-universe-schema.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-schema/roblox-user-schema.json
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/roblox-engine-api/overview
- type: AgenticAccess
  url: agentic-access/roblox-engine-api-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/roblox-engine-api-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/roblox-engine-api-domain-security.yml
- type: Authentication
  url: authentication/roblox-engine-api-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/roblox
- type: Website
  url: https://www.roblox.com
- type: DeveloperPortal
  url: https://create.roblox.com
- type: Documentation
  url: https://create.roblox.com/docs
- type: DevForum
  url: https://devforum.roblox.com
- type: GitHub
  url: https://github.com/Roblox
- type: Blog
  url: https://blog.roblox.com
- type: PrivacyPolicy
  url: https://www.roblox.com/info/privacy
- type: TermsOfService
  url: https://en.help.roblox.com/hc/en-us/articles/115004647846
- type: JSONLDContext
  url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/json-ld/roblox-engine-api-context.jsonld
- type: Vocabulary
  url: https://raw.githubusercontent.com/api-evangelist/roblox-engine-api/refs/heads/main/vocabulary/roblox-engine-api-vocabulary.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: roblox
x-relationship: product

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