Roblox Engine API website screenshot

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 8 API contracts indexed on the APIs.io network, including Assets API, Groups API, Messaging API, and 5 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 16 more developer resources.

41.5/100 developing ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
AccessFreemiumSelf serve⚡ Free to try
1 published contract
GamingGame DevelopmentMetaverseRobloxOpen Cloud

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Gaming
AE-180
Places
POST /universes/v1/{universeId}/places/{placeId}/versions

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
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.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
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Agent readiness — checks not met, largest first (exact, from this profile):
  • MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
  • Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
  • Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
  • Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
  • Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
9 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.
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 the provider profile at artifacts.apis.io/roblox-engine-api/apis.yml: open an issue on github.com/api-evangelist/roblox-engine-api to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

MarketPositionDepthRegistered MCP serverDeclares compatibility
XR & Graphics (XR, 3D, GPU graphics) undeclared - - -

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

measured — observed by APIs.io (published)

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 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

Roblox Engine API Datastores API

Persistent data storage for experiences

Scroll for all 8

Postman Collections 7

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

Scroll for all 7

Open Collections 8

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

Roblox Open Cloud API

OPEN COLLECTION

Scroll for all 8

Roblox Engine API pricing

Not yet checked against Roblox Engine API's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

PlanPrice
Free freemium Free
Professional paid Free
Enterprise enterprise —

Plan details, limits and sources →

Rate limits

Compiled by API Evangelist, not yet checked against Roblox Engine API's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Roblox Engine Api Rate Limits

5 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

FinOps 1

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

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 — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

Roblox Engine API — roblox open cloud 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.

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

21 operations · 10 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 3

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
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
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  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-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
- aid: roblox-engine-api:roblox-engine-api-datastores-api
  name: Roblox Engine API Datastores API
  description: Persistent data storage for experiences
  humanURL: https://create.roblox.com/docs/reference/engine
  baseURL: https://apis.roblox.com
  tags:
  - Datastores
  properties:
  - type: OpenAPI
    url: openapi/roblox-engine-api-datastores-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: CapabilityMap
  url: capabilities/roblox-engine-api-capability-edges.yml
  name: Roblox Engine API Business Capability Map
- type: Plans
  url: plans/roblox-engine-api-plans-pricing.yml
- type: RateLimits
  url: rate-limits/roblox-engine-api-rate-limits.yml
- type: FinOps
  url: finops/roblox-engine-api-finops.yml
- 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

Roblox Engine API — frequently asked questions

Does Roblox Engine API have an API?

Yes. APIs.io lists 8 APIs from Roblox Engine API, including Roblox Engine API, Roblox Engine API Assets API and Roblox Engine API Groups API, and 5 more.

Is there an OpenAPI specification for the Roblox Engine API?

Yes. APIs.io indexes 7 OpenAPI specifications for Roblox Engine API, each linked for download from this page.

How do I authenticate with the Roblox Engine API?

Roblox Engine API uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Roblox Engine Api Authentication.

How much does the Roblox Engine API cost?

APIs.io lists 3 pricing plans for Roblox Engine API, with each plan's price, limits and inclusions under Pricing on this page.

Is the Roblox Engine API ready for AI agents?

Roblox Engine API has a Kin Score of 41.5 out of 100 (developing) and an Agent Readiness score of 19.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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