OpenLeaderboard

What it does

Anti-cheat

Apps can optionally require HMAC-signed score submissions, with timestamp and nonce checks.checked 3 Oct 2026

Authentication

Game clients authenticate with an app API key, and the dashboard uses an account session.checked 3 Oct 2026

Benchmark caveat

The site labels its performance figures as an indicative local run on Docker Redis, not a production benchmark.checked 3 Oct 2026

Board types

It supports global all-time, daily, weekly, monthly, seasonal, segmented, friends, and neighbor leaderboards.checked 3 Oct 2026

Infrastructure

The documented ranking tier uses Redis sorted sets, with Redis Streams or Kinesis shown for durable ingestion.checked 3 Oct 2026

Known limitation

Daily windows reset at UTC midnight, and the documentation says per-board time zones are not yet supported.checked 3 Oct 2026

License

The project is open source under the Apache-2.0 license.checked 3 Oct 2026

Member queries

The API supports top-N, paginated, individual-rank, neighbours, and explicit-friends queries.checked 4 Oct 2026

Open source license

The site identifies the project as open source under Apache-2.0.checked 4 Oct 2026

Product

OpenLeaderboard is an open-source leaderboard API for game developers.checked 4 Oct 2026

Ranking

The documentation says rank reads are O(log N), while very large boards can enable approximate rank estimates; top-N and neighbor results remain exact.checked 3 Oct 2026

Rankings

The service supports global all-time rankings and daily, weekly, monthly, and seasonal windows.checked 4 Oct 2026

REST API

The REST API uses the /v1 base path and accepts API-key authentication for board endpoints.checked 4 Oct 2026

Scale

The site says exact rank reads are O(log N) and describes an optional approximate-rank mode for very large boards.checked 4 Oct 2026

Score processing

Score submissions are durably logged and ranked asynchronously, typically within milliseconds.checked 3 Oct 2026

Scoring options

Boards can use higher- or lower-score wins, best/last/increment update policies, and lexical or first-to-reach tie-breaking.checked 3 Oct 2026

Scoring rules

Boards can configure ascending or descending order, best, last, or increment update policies, and lexical or first-to-reach tie-breaking.checked 4 Oct 2026

SDKs

The site documents Go, Unity/C#, and TypeScript SDKs.checked 4 Oct 2026

Segments

Boards can be segmented by region, platform, or another cohort key supplied with a score.checked 4 Oct 2026

Self-hosting

The project can be self-hosted, and its repository documents a Docker quickstart.checked 3 Oct 2026

Submission security

Apps can require HMAC-signed score submissions as an optional anti-cheat measure.checked 4 Oct 2026

Time-zone limitation

Daily windows reset at UTC midnight, and the documentation says per-board time zones are not available.checked 4 Oct 2026

What it does

OpenLeaderboard is an open-source leaderboard API for game developers to submit scores and retrieve player rankings.checked 3 Oct 2026

Write processing

Score submissions are durably logged and ranked asynchronously, typically within milliseconds, according to the documentation.checked 4 Oct 2026