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Open Source API Infrastructure Tools using npm

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

Mockoon

Effortless API mocking for seamless development

  • Stars

    8,449

  • Last commit

    15 hours ago

  • License

    MIT
Create, run, and share mock REST APIs without coding. Boost productivity with an intuitive interface and powerful features.

Open Source Alternative to:

Postman

Tailcall

AI
The modern GraphQL runtime

  • Stars

    1,443

  • Last commit

    2 months ago

  • License

    Apache-2.0
Swiftly design and ship best-practice GraphQL backends atop existing data sources and APIs.

Open Source Alternative to:

Apollo GraphQL

WunderGraph

Unify APIs, databases, and services effortlessly

  • Stars

    1,280

  • Last commit

    3 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

    461

  • Last commit

    3 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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