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 📡 Profile data on GitHub

21.8/100 emerging ▬ flat Agent 10/100 agent aware Front door AI 1/6 silent Heartbeat 16/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessSelf serve

0 APIs 1 MCP Servers 2 Agent Skills

Company Multiplayer Gaming Game Development Real-Time SDKState SynchronizationDeveloper Tools

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 21.8/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 9.6 / 17

Access Clarity 1.8 / 17

Operational Transparency 2.9 / 11

Contract Governance 0.0 / 10

Discoverability 4.7 / 9

Regulatory Posture 1.8 / 15

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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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 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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 10.5 — up to +17.9 composite points
Contract Governance scores 0.0 — up to +12.0 composite points

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/playroom/apis.yml: open an issue on github.com/api-evangelist/playroom 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 →

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

MCP Servers 1

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

Playroom MCP Server

Remote MCP server at docs.joinplayroom.com over HTTP; 6 tools listed.

MCP SERVER

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

Run host-authoritative logic with RPCs

AGENT SKILL

Initialize a Playroom multiplayer session

AGENT SKILL

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: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  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

Playroom API — frequently asked questions

How do I authenticate with the Playroom API?

Playroom uses bearer-token authentication (gameId/oauth2 · 3 schemes). The details are profiled on APIs.io as Playroom Authentication.

Does Playroom have an MCP server?

Yes. APIs.io lists 1 MCP server for Playroom: Remote MCP server at docs.joinplayroom.com over HTTP; 6 tools listed.

Is the Playroom API ready for AI agents?

Playroom has a Kin Score of 21.8 out of 100 (emerging) and an Agent Readiness score of 9.7 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

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get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
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get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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