OpenLeaderboard

Spec sheet

What it does

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

Product

OpenLeaderboard is an open-source leaderboard API for game developers.Read 4 Oct 2026 · openleaderboard.app

License

The project is open source under the Apache-2.0 license.Read 3 Oct 2026 · openleaderboard.app

Anti-cheat

Apps can optionally require HMAC-signed score submissions, with timestamp and nonce checks.Read 3 Oct 2026 · openleaderboard.app

Authentication

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

Benchmark caveat

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

Board types

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

Infrastructure

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

Known limitation

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

Member queries

The API supports top-N, paginated, individual-rank, neighbours, and explicit-friends queries.Read 4 Oct 2026 · openleaderboard.app

Open source license

The site identifies the project as open source under Apache-2.0.Read 4 Oct 2026 · openleaderboard.app

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.Read 3 Oct 2026 · openleaderboard.app

Rankings

The service supports global all-time rankings and daily, weekly, monthly, and seasonal windows.Read 4 Oct 2026 · openleaderboard.app

REST API

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

Scale

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

Score processing

Score submissions are durably logged and ranked asynchronously, typically within milliseconds.Read 3 Oct 2026 · openleaderboard.app

Scoring options

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

Scoring rules

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

SDKs

The site documents Go, Unity/C#, and TypeScript SDKs.Read 4 Oct 2026 · openleaderboard.app

Segments

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

Self-hosting

The project can be self-hosted, and its repository documents a Docker quickstart.Read 3 Oct 2026 · github.com

Submission security

Apps can require HMAC-signed score submissions as an optional anti-cheat measure.Read 4 Oct 2026 · openleaderboard.app

Time-zone limitation

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

Write processing

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

Where Specifiction places it

• Game Leaderboard Software#30 of 377.4