Multiplayer API
Multiplayer API is a hosted backend for online games, providing player accounts, rooms, matchmaking, leaderboards, and realtime state updates.
What Multiplayer API is
Multiplayer API is a hosted backend for online games, providing player accounts, rooms, matchmaking, leaderboards, and realtime state updates. Player management includes registration, authentication, sessions, heartbeats, custom data, and timed or permanent bans. Games can create rooms and lobbies, process realtime actions and join requests, protect matches with passwords, and allow direct joins. JSON endpoints store structured game and player data and handle ranked leaderboard scores. Official SDKs are available for Unity, Java, .NET, C++, and Python, while other platforms can use the REST API. A Node.js relay supports room events, and the Python SDK describes an asyncio WebSocket client for realtime rooms. The project can be self-hosted under the MIT No Attribution license, which permits commercial use without attribution according to the maker. Hosted data is stored in France, with GDPR compliance stated.
Good
- Provides accounts, rooms, matchmaking, and leaderboards
- Official SDKs cover Unity, Java, .NET, C++, and Python
- Supports realtime room events and updates
- Can be self-hosted under MIT No Attribution
- Offers a free plan
Watch out
- Free plan allows one game
- Free tier limits 100 concurrent players
- Hosted data is stored on servers in France
Who it suits
Multiplayer API suits indie developers and studios that want accounts, matchmaking, rooms, leaderboards, and realtime features without operating their own backend infrastructure. Self-hosting also fits teams wanting deployment control.
Verdict
Multiplayer API packages common online-game backend functions with SDKs, REST access, and realtime options. Compare the plan limits with expected games, storage, and concurrent-player needs.
Plans and prices
From Multiplayer API's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 128 MB storage · 1 game · 100 concurrent players |
| Standard | $25 a month | 512 MB storage · 1 game · 1K concurrent players · Billed monthly in advance |
| Pro | $300 a month | 1 GB storage · 3 games · 2K concurrent players · Billed monthly in advance |
The facts
Each one read from Multiplayer API's own pages, with the date it was checked.
What it does
- Data location
- The hosted service stores data on servers in France provided by Hostinger, and its FAQ says the service complies with GDPR.checked 7 Oct 2026
- Data retention
- The privacy policy says API logs are retained for 90 days, payment records for 7 years, and deleted-account personal data is removed within 30 days.checked 7 Oct 2026
- Intended users
- The project says it aims to help indie developers and studios ship multiplayer features without building and operating their own backend infrastructure.checked 7 Oct 2026
- Leaderboards and storage
- Games can submit and query ranked leaderboard scores and store structured game and player data through JSON endpoints.checked 7 Oct 2026
- Open-source license
- The server source code and SDKs use the MIT No Attribution license, which the maker says permits commercial use without attribution.checked 7 Oct 2026
- Player management
- Player features include registration, authentication, sessions, heartbeats, custom player data, and timed or permanent bans.checked 7 Oct 2026
- Realtime
- A Node.js realtime relay supports room events, and the Python SDK page describes an asyncio WebSocket client for realtime rooms.checked 7 Oct 2026
- Rooms and matchmaking
- The API supports game rooms, realtime actions, lobbies, join requests, password-protected matches, and direct joins.checked 7 Oct 2026
- SDKs and API
- Official SDKs are available for Unity, Java, .NET, C++, and Python, with direct REST API access for other platforms.checked 7 Oct 2026
- Security
- The privacy policy says passwords use bcrypt, API communications use HTTPS/TLS, authenticated requests require API tokens, and database access uses prepared statements.checked 7 Oct 2026
- Self-hosting
- The project can be self-hosted under its MIT-0 license; for self-hosted instances, the operator's own deployment and privacy policy apply.checked 7 Oct 2026
- Support
- The maker directs users to [email protected] for questions, bug reports, and feature requests.checked 7 Oct 2026
- What it does
- Multiplayer API is a hosted backend for online games, providing player accounts, rooms, matchmaking, leaderboards, and realtime state updates.checked 7 Oct 2026
The company
- Maker
- The project is designed, built, and maintained by Nichita Levandovici (Michitai), in the Republic of Moldova.checked 7 Oct 2026
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