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Open Source API Infrastructure Tools using CSS

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

UnKey

Secure, scalable API key management for developers

  • Stars

    5,469

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Streamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.

Open Source Alternative to:

Kong

WunderGraph

Unify APIs, databases, and services effortlessly

  • Stars

    1,279

  • Last commit

    6 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

Hive

Open-source GraphQL federation platform

  • Stars

    483

  • Last commit

    7 hours ago

  • License

    MIT
A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs

Open Source Alternative to:

Apollo GraphQL

Gravitee

Unified API, event, and AI agent management platform

  • Stars

    461

  • Last commit

    6 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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