PartyKit

aid: partykit
name: PartyKit
description: >-
  PartyKit is a real-time backend framework, now part of Cloudflare, that
  wraps Cloudflare Durable Objects with an opinionated developer experience
  for building multiplayer applications. It exposes a Party.Server library API
  for backend logic, a PartySocket client API for WebSockets, a Y-PartyKit
  Yjs integration, an HTTP/WebSocket interface at *.partykit.dev URLs, a CLI
  for local dev and deployment, and integrations with React, Next.js, and
  Remix.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
url: >-
  https://raw.githubusercontent.com/api-evangelist/partykit/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.19'
tags:
  - Real-Time
  - Multiplayer
  - WebSockets
  - Cloudflare
  - Durable Objects
  - Edge
  - CRDT
  - Yjs
  - Serverless
apis:
  - aid: partykit:party-server
    name: PartyKit Party.Server (Server API)
    description: >-
      Library API for defining server-side logic for a "party" - a backend
      object backed by a Cloudflare Durable Object. Provides lifecycle hooks
      for connections, messages, requests, alarms, and state persistence.
    humanURL: https://docs.partykit.io/reference/partyserver-api/
    baseURL: https://docs.partykit.io/reference/partyserver-api/
    tags:
      - Server API
      - Durable Objects
      - WebSockets
      - Hooks
    properties:
      - type: Documentation
        url: https://docs.partykit.io/reference/partyserver-api/
      - type: SDK
        url: https://www.npmjs.com/package/partykit
      - type: SDK
        url: https://www.npmjs.com/package/partyserver
  - aid: partykit:partysocket
    name: PartyKit PartySocket (Client API)
    description: >-
      Browser and runtime client library for connecting to a PartyKit server
      over WebSockets. Wraps the standard WebSocket API with reconnection,
      buffering, and resilience. Runs in Web, ServiceWorker, Node.js, React
      Native, Cloudflare Workers, Deno, and Bun.
    humanURL: https://docs.partykit.io/reference/partysocket-api/
    baseURL: https://docs.partykit.io/reference/partysocket-api/
    tags:
      - Client SDK
      - WebSockets
      - Browser
      - Cross-Runtime
    properties:
      - type: Documentation
        url: https://docs.partykit.io/reference/partysocket-api/
      - type: SDK
        url: https://www.npmjs.com/package/partysocket
  - aid: partykit:y-partykit
    name: Y-PartyKit (Yjs Integration)
    description: >-
      Yjs provider for PartyKit that turns a party into a Yjs collaboration
      backend, enabling shared text, rich text, and structured CRDT documents
      across many clients.
    humanURL: https://docs.partykit.io/reference/y-partykit-api/
    baseURL: https://docs.partykit.io/reference/y-partykit-api/
    tags:
      - Yjs
      - CRDT
      - Collaboration
    properties:
      - type: Documentation
        url: https://docs.partykit.io/reference/y-partykit-api/
      - type: SDK
        url: https://www.npmjs.com/package/y-partykit
  - aid: partykit:deployed-party-http
    name: PartyKit Deployed Party (HTTP / WebSocket)
    description: >-
      Public HTTP and WebSocket interface for a deployed PartyKit project at
      project.user.partykit.dev. Each party is reachable at
      /parties/{party}/{room} and accepts WebSocket upgrades or HTTP requests.
    humanURL: https://docs.partykit.io/how-partykit-works/
    baseURL: https://{project}.{user}.partykit.dev
    tags:
      - HTTP
      - WebSocket
      - Rooms
      - Parties
    properties:
      - type: Documentation
        url: https://docs.partykit.io/how-partykit-works/
common:
  - type: Website
    url: https://www.partykit.io
  - type: Portal
    url: https://docs.partykit.io
  - type: Documentation
    url: https://docs.partykit.io
  - type: Blog
    url: https://blog.partykit.io
  - type: GitHub
    url: https://github.com/cloudflare/partykit
  - type: CLI
    url: https://docs.partykit.io/reference/partykit-cli/
  - type: Examples
    url: https://docs.partykit.io/examples/
  - type: Tutorials
    url: https://docs.partykit.io/guides/
  - type: TermsOfService
    url: https://www.cloudflare.com/website-terms/
  - type: PrivacyPolicy
    url: https://www.cloudflare.com/privacypolicy/
  - type: Community
    url: https://discord.gg/g5uqHQJc3z
maintainers:
  - FN: Kin Lane
    email: [email protected]