Aerospike client libraries

For the complete documentation index see: llms.txt

All documentation pages available in markdown.

Aerospike client libraries provide developers with the tools needed to interact with Aerospike’s high-performance, NoSQL database. Connect to a cluster, perform reads and writes, run queries, and manage data models from your preferred programming language.

Choose Your Client

Developer SDK

Modern, intuitive APIs for Java and Python with Aerospike Expression Language (AEL) queries and intelligent error handling.

Best for new projects and developers who want a streamlined experience.

Get Started →

New

Legacy clients

Full-featured clients for Java, Python, Go, C, C#, Node.js, Rust, and PHP.

Battle-tested in production at scale across thousands of deployments.

Clients can opt in to Server error details in Aerospike Database 8.2.0 and later.

View All Clients →

Developer SDK

The Developer SDK is a modern alternative to the legacy clients, available for Java and Python:

Language-native APIs: Chainable, fluent methods that feel natural
AEL queries: Filter with readable expressions like "status == 'active' and age > 21"
Smart error handling: Messages you can act on, with recovery suggestions
Decoupled configuration: Separate connection from behavior

Language	Package	Docs
Java	`com.aerospike:aerospike-fluent-client-java`	Documentation
Python	`aerospike-fluent`	Documentation

Quickstart → · Installation → · API Concepts →

Legacy clients

Production-ready clients for all major languages. Each client is optimized for performance and integrates seamlessly with Aerospike features like secondary indexes, user-defined functions, and record-level TTLs.

Java

Build with Java

The original high-performance Java client with full database access.

Documentation | API reference

Python

Build with Python

Feature-rich Python client for data science, web apps, and automation.

Documentation | API reference

Go

Build with Go

High-performance Go client for microservices and cloud-native applications.

Documentation | API reference

C# / .NET

Build with C#

.NET client for Windows, Linux, and cross-platform applications.

Documentation | API reference

Node.js

Build with Node.js

Async-first Node.js client for web applications and APIs.

Documentation | API reference

Rust

Build with Rust

Memory-safe Rust client with support for strong consistency and ACID transactions.

Documentation | API reference

C

Build with C

Low-level C client for embedded systems and maximum performance.

Documentation | API reference

PHP

Build with PHP

PHP client for web applications and content management systems.

Documentation | API reference

Which Client Should I Use?

If you…	Use
Are starting a new project in Java or Python	Developer SDK
Want AEL queries like `"age > 21"`	Developer SDK
Need production-proven stability	Legacy client for your language
Use Go, C#, Node.js, Rust, C, or PHP	Legacy client (Developer SDK not available yet)
Have an existing codebase with legacy client	Continue with Legacy client

Client Compatibility

See the Client Compatibility Matrix for version compatibility between clients and Aerospike server.