Frequently Asked Questions

Multiplayer API is a cross-platform backend for multiplayer games. It provides player accounts, game rooms, matchmaking, leaderboards and realtime updates through a REST API and official SDKs for Unity, Java, .NET and C++.

There are three tiers: Free (US$0), Paid (US$100/month or US$960/year prepaid, saving 20%), and Enterprise (contact support@michitai.com). Paid covers one managed deployment in one region, not a physical-server lease. Free uses shared resources in one available region. Allocations and usage limits are confirmed before activation; extra deployments or regions are separately ordered or covered by an Enterprise agreement. See /terms.php. SDK integration is permitted under /SDK-LICENSE; service fees and limits remain separate.

The backend remains proprietary under /LICENSE. Official SDKs use the Michitai Service SDK License at /SDK-LICENSE: you may integrate, modify and bundle them in applications using our service, including commercial games, without separate permission or SDK royalties. Standalone SDK resale, relicensing, competing-service use and harmful modifications are prohibited. Service fees and limits still apply. Third-party licenses and rights validly granted for earlier releases remain unchanged.

Official SDKs exist for Unity (JsonUtility), Java (Jackson), .NET (System.Text.Json), Python (dataclasses + asyncio), C++ (nlohmann::json) and JavaScript/TypeScript (zero-dependency ESM for browsers and Node.js). Any other platform can integrate directly through the language-agnostic REST API.

Player registration and authentication, sessions and heartbeats, game data storage, game rooms with realtime actions, matchmaking lobbies with join requests and passwords, leaderboards, server time sync, and player moderation (timed and permanent bans).

No. You can use the hosted service at api.michitai.com with a free developer account. Self-hosting the proprietary software requires prior written permission from Nichita Levandovici, except as required by applicable law.

Yes — the API is fully machine-readable. There is an OpenAPI 3.0 spec at /openapi.json, a doc index at /llms.txt, the complete reference in one file at /llms-full.txt, and a read-only MCP (Model Context Protocol) endpoint at /mcp with tools to browse endpoints and search the docs. Point your assistant at any of them and it can generate correct integration code against the real endpoints.

Create a free account, generate an API token from your cabinet, then follow the getting-started tutorial: register a player, create a room, read the response. Pick an SDK (Unity, Java, .NET, Python, C++ or JavaScript/TypeScript) or call the REST API directly — the docs include copy-paste examples for every endpoint.

The primary hosting region is confirmed for your service access or managed deployment before activation. A deployment may combine managed web hosting and a realtime VPS. Payment, email, Steam authentication, support and backup processing are not necessarily confined to that region. Contact support@michitai.com for data-residency requirements and see /privacy.php for details.

Yes — michitai-multiplayer is a zero-dependency ESM package covering the whole REST API plus the realtime channel. It runs in browsers (fetch + WebSocket, CORS is enabled on every endpoint) and Node.js 22+, where it also gets the UDP fast lane. TypeScript declarations ship in the package.

Yes. Every REST endpoint answers browser CORS preflights and the realtime service accepts WebSocket connections with a query-string token (browsers cannot set WS headers — this is a supported path). The one platform limit is that web pages cannot send UDP, so unreliable traffic falls back to the WebSocket lane automatically.

Not yet. WebTransport became Baseline-available in browsers in March 2026, but it requires an HTTP/3 server endpoint the realtime relay does not run today. The current transports — WebSocket for reliable traffic plus a UDP datagram lane for unreliable traffic — cover the same reliable/unreliable split; WebTransport is tracked on the roadmap with explicit adoption criteria.

Contact support@michitai.com.