Playroom

Playroom (Playroom Kit) is a client-side developer platform for building multiplayer apps and games in minutes. Its single JavaScript/TypeScript SDK (npm playroomkit) provides synchronized global and per-player state, an elected host model, remote procedure calls (RPCs), matchmaking and lobbies, on-screen joystick/gamepad controllers, bots, and turn-based helpers, with wrappers for Unity (C#) and Godot and support across React, Next.js, Vue, Angular, Remix, Phaser, and React Three Fiber. Apps authenticate with a read-only gameId issued from the Dev Portal rather than a server API key, and Playroom hosts the realtime infrastructure. It also embeds into Discord Activities and TikTok Live. Surfaced as a 500 Global portfolio company and enriched into the API Evangelist network.

Playroom is profiled on the APIs.io network. Tagged areas include Company, Multiplayer, Gaming, Game Development, and Real-Time.

Playroom’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, pricing, signup flow, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub

22.6/100 emerging ▬ flat Agent 10/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessSelf serve

0 APIs 1 MCP Servers

Company Multiplayer Gaming Game Development Real-Time SDKState SynchronizationDeveloper Tools

Kin Score

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

Composite quality — 22.6/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 11.3 / 20

Access Clarity 2.1 / 20

Operational Transparency 3.4 / 13

Contract Governance 0.0 / 12

Discoverability 5.7 / 10

Agent readiness — 10/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/playroom: 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 →

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Playroom MCP Server

MCP SERVER

Security Posture 2

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

Playroom Authentication

gameId/oauth2 · 3 schemes

SECURITY

Playroom Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

AgentSkill

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

ErrorCatalog

Components

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

Deprecation

Deprecation

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: playroom
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/playroom.png
name: Playroom
description: Playroom (Playroom Kit) is a client-side developer platform for building multiplayer apps and games in minutes.
  Its single JavaScript/TypeScript SDK (npm playroomkit) provides synchronized global and per-player state, an elected host
  model, remote procedure calls (RPCs), matchmaking and lobbies, on-screen joystick/gamepad controllers, bots, and turn-based
  helpers, with wrappers for Unity (C#) and Godot and support across React, Next.js, Vue, Angular, Remix, Phaser, and React
  Three Fiber. Apps authenticate with a read-only gameId issued from the Dev Portal rather than a server API key, and Playroom
  hosts the realtime infrastructure. It also embeds into Discord Activities and TikTok Live. Surfaced as a 500 Global portfolio
  company and enriched into the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/playroom/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Multiplayer
- Gaming
- Game Development
- Real-Time
- SDK
- State Synchronization
- Developer Tools
tags_raw:
- Company
- Multiplayer
- Gaming
- Game Development
- Real-time
- SDK
- State Synchronization
- Developer Tools
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis: []
common:
- type: Website
  url: https://joinplayroom.com
- type: DeveloperPortal
  url: https://dev.joinplayroom.com
- type: Documentation
  url: https://docs.joinplayroom.com
- type: APIReference
  url: https://docs.joinplayroom.com/api-reference/js
- type: GettingStarted
  url: https://docs.joinplayroom.com
- type: Blog
  url: https://docs.joinplayroom.com/blog
- type: Support
  url: https://discord.gg/uDHxeRYhRe
- type: GitHubOrganization
  url: https://github.com/playroomkit
- type: Pricing
  url: https://docs.joinplayroom.com/billing
- type: SignUp
  url: https://dev.joinplayroom.com
- type: TermsOfService
  url: https://joinplayroom.com/terms
- type: PrivacyPolicy
  url: https://joinplayroom.com/privacy
- type: LLMsTxt
  url: llms/playroom-llms.txt
- type: MCPServer
  url: mcp/playroom-mcp.yml
- type: Packages
  url: packages/playroom-packages.yml
- type: SDKs
  url: packages/playroom-packages.yml
- type: ChangeLog
  url: changelog/playroom-changelog.yml
- type: Lifecycle
  url: lifecycle/playroom-lifecycle.yml
- type: Deprecation
  url: lifecycle/playroom-lifecycle.yml
- type: Authentication
  url: authentication/playroom-authentication.yml
- type: Conventions
  url: conventions/playroom-conventions.yml
- type: ErrorCatalog
  url: errors/playroom-error-codes.yml
- type: Components
  url: components/playroom-components.yml
- type: DomainSecurity
  url: security/playroom-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 11
  pass: local-v1

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