Feature Store API

Python - Java/Scala API for the Hopsworks feature store

DecliningOpen SourceLow lock-in

Pricing

Free tier

Flat rate

Adoption

Cooling

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

What is Feature Store API?

The Feature Store API provides a Python and Java/Scala interface to interact with the Hopsworks feature store, enabling developers and data scientists to manage and retrieve features efficiently.

Key differentiator

The Feature Store API offers a specialized interface for managing and retrieving features from the Hopsworks feature store, providing an efficient solution for data scientists working within this ecosystem.

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Supports Python, Java, and Scala for feature managementmedium

Integration with the Hopsworks feature storemedium

Efficient retrieval of features for machine learning modelsmedium

↓ Weaknesses

Steep learning curve for non-Python developershigh

API requires Python-specific patterns, TypeScript SDK is community-maintained

Frequent breaking changes between versionsmedium

v0.1 to v0.2 migration required rewriting chain definitions

Limited language support beyond Python, Java, and Scalahigh

No native support for other popular languages like R or Go

Complex setup process for integrating with Hopsworks feature storemedium

Requires configuration of multiple dependencies and services

Fit analysis

Who is it for?

✓ Best for

Data teams working with Hopsworks who need a consistent way to manage and retrieve features

Projects requiring efficient feature retrieval for machine learning model training

✕ Not a fit for

Teams not using the Hopsworks platform, as this API is specific to it

Scenarios where real-time streaming of features is required (this tool focuses on batch processing)

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Next step

Get Started with Feature Store API

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →