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Open Source API Infrastructure Tools using Java

A curated collection of the best open source infrastructure and tools for managing and securing APIs. using Java.

Apache APISIX

High-performance API gateway with built-in LLM support

  • Stars

    17,275

  • Last commit

    17 hours ago

  • License

    Apache-2.0
Apache APISIX is an open-source API gateway built on NGINX and etcd, offering dynamic routing, 100+ plugins, load balancing, authentication, and traffic management for APIs and LLM workloads.

Open Source Alternative to:

Kong

WunderGraph

Unify APIs, databases, and services effortlessly

  • Stars

    1,284

  • Last commit

    4 hours ago

  • License

    Apache-2.0
A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.

Open Source Alternative to:

Apollo GraphQL

Gravitee

Unified API, event, and AI agent management platform

  • Stars

    466

  • Last commit

    4 hours ago

  • License

    Apache-2.0
Full-lifecycle API management platform that unifies synchronous and asynchronous ecosystems. Manage APIs, event streams, and AI agents with enterprise security and 4x faster gateway performance.

Open Source Alternative to:

Postman
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