The EMBL-EBI Ontology Lookup Service (OLS)
⚡ Executive Summary & Quick Facts
Authoritative Sourceols4 is ols4 is an open-source project written in Java: The EMBL-EBI Ontology Lookup Service (OLS)..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), EBISPOT/ols4 has accumulated 106 GitHub stars and 48 forks. It is written in Java, licensed under Apache-2.0, and ranks #25,908 globally. It is actively maintained with the latest commit recorded on Oct 31, 2026.”
| Repository | EBISPOT/ols4 ↗ |
|---|---|
| Primary Category | embeddings |
| Language & Stack | Java |
| Software License | Apache-2.0 |
| Community Traction | ★ 106 stars · ⑂ 48 forks · #25,908 globally |
| Maintenance | ● Active (Last commit: Oct 31, 2026) · 68 open issues |
| Target Audience | Developers and engineering teams building with Java, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 93/100 · Grade A+Yes, ols4 is actively maintained. Continuous telemetry recorded the last code commit on Oct 31, 2026 (12 days ago). Supported by 106 stars and 48 community forks, this repository holds a calculated health index of 93/100, reflecting very active (commits within last 14 days) and healthy issue cadence.
Star History
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+2
STARS · LAST 30 DAYS
1
PER DAY
#1,896
MOST-STARRED Java
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +2 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +0 | +10 |
ols4 gained 2 stars in the last 30 days, about 1 a day, and now has 106. It is about 4 years old and has averaged roughly 27 stars a year. It ranks #1,896 among Java repositories and #25,908 across all languages on GitHubRepo.
Trending Record
42
DAYS ON TRENDING
#5515
BEST RANK
Sep 27, 2026
FIRST APPEARANCE
Active
STATUS TODAY
ols4 has maintained a continuous presence across global trending indexes, peaking at #5515. Below is the 30-day activity profile:
💡 Overview
ols4 is an open-source project written in Java: The EMBL-EBI Ontology Lookup Service (OLS).
Engineered for speed, consistency, and developer ease, it solves common hurdles in embeddings, fair-data, knowledge-graph. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Java for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/EBISPOT/ols4.git
cd ols4⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
JDK 17 or higher (OpenJDK / GraalVM)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
ols4 coordinates its core functionality through a modular Java pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Autonomous AI Agents
Orchestrate intelligent workflows and tool-calling routines with ols4.
Model Inference & Prompting
Integrate fast, local or cloud-hosted generative AI models directly into production code.
Context Memory & RAG
Augment language models with dynamic vector retrieval and structured project memory.
Developer Productivity
Automate repetitive engineering tasks, code generation, and test creation using AI agents.
🚀 Getting Started
Install ols4 using your package manager: `git clone https://github.com/EBISPOT/ols4.git`
Initialize your project workspace or configuration file for ols4.
Import ols4 into your codebase or invoke it directly from your terminal.
Execute your test suite or run `ols4 --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Java, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
EBISPOT/ols4 is currently ranked #25,908 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #25,796 | helalaou/AeroTizen | JavaScript | ★ 107 | Compare ↗ |
| #25,796 | entropyconquers/gpt-voice | Swift | ★ 107 | Compare ↗ |
| #25,796 | giienew/9router-pro | JavaScript | ★ 107 | Compare ↗ |
| #25,796 | nixesty/now-bar | Rust | ★ 107 | Compare ↗ |
| #25,796 | guzhezao/off-angle | JavaScript | ★ 107 | Compare ↗ |
| #25,908 | EBISPOT/ols4 This Project | Java | ★ 106 | |
| #25,908 | lmarlow/gemedit | Ruby | ★ 106 | Compare ↗ |
| #25,908 | sunny/edith | PHP | ★ 106 | Compare ↗ |
| #25,908 | cjbottaro/app_config | Ruby | ★ 106 | Compare ↗ |
| #25,908 | jonleighton/date_input | JavaScript | ★ 106 | Compare ↗ |
| #25,908 | schacon/igithub | Objective-C | ★ 106 | Compare ↗ |
Frequently Asked Questions
What does ols4 do? +
The EMBL-EBI Ontology Lookup Service (OLS)
Is ols4 actively maintained in 2026? +
Yes, ols4 is actively maintained. The latest code push was recorded on Oct 31, 2026 (12 days ago). It holds a calculated Maintenance Health Score of 93/100 (A+ rating) with 106 stars and 68 open issues.
What language is ols4 written in? +
The primary language is Java. Topics include: embeddings, fair-data, knowledge-graph, knowledge-management, knowledge-representation.
How many stars does ols4 have? +
ols4 has 106 stars and 48 forks on GitHub.
How does ols4 rank among GitHub repositories? +
With 106 stars, EBISPOT/ols4 is ranked #25,908 globally across all repositories tracked on GitHubRepo and #1,896 among Java projects.
What license is ols4 distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
