Best API Infrastructure Tools in 2026

LiveKit

Real-time communication infrastructure for developers

Stars
18,288
Forks
1,914
Last commit
23 hours ago

Scalable, customizable WebRTC SFU and server SDK for building real-time audio, video, and data applications with ease.

Tyk

Universal API management for REST, GraphQL, gRPC & async

Stars
10,695
Forks
1,153
Last commit
3 hours ago

Fast, scalable API management platform with open source gateway, analytics, dev portal and dashboard. Deploy anywhere with AI-ready governance and security.

Open Source Alternative to:

Apigee

Mockoon

Effortless API mocking for seamless development

Stars
8,218
Forks
460
Last commit
1 day ago

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

Open Source Alternative to:

Postman

UnKey

Secure, scalable API key management for developers

Stars
5,243
Forks
615
Last commit
6 hours ago

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

Open Source Alternative to:

Apigee

Trieve

AI-powered search and RAG platform for faster, more relevant results

Stars
2,640
Forks
241
Last commit
3 months ago

Trieve offers an all-in-one solution for search, recommendations, and RAG with automatic continuous improvement based on user feedback.

Open Source Alternative to:

Pinecone

Krakend

Blazing-fast API gateway with linear scalability

Stars
2,598
Forks
491
Last commit
11 days ago

High-performance, stateless API gateway built for microservices. Handle 80K+ requests/second with transparent pricing and enterprise-grade reliability.

Open Source Alternative to:

Apigee

Tailcall

The modern GraphQL runtime

Stars
1,433
Forks
256
Last commit
1 day ago

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
1,198
Forks
231
Last commit
3 hours ago

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
477
Forks
133
Last commit
22 hours ago

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
406
Forks
112
Last commit
4 hours ago

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

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

LiveKit

Real-time communication infrastructure for developers

Stars
18,288
Forks
1,914
Last commit
23 hours ago

Scalable, customizable WebRTC SFU and server SDK for building real-time audio, video, and data applications with ease.

Tyk

Universal API management for REST, GraphQL, gRPC & async

Stars
10,695
Forks
1,153
Last commit
3 hours ago

Fast, scalable API management platform with open source gateway, analytics, dev portal and dashboard. Deploy anywhere with AI-ready governance and security.

Open Source Alternative to:

Apigee

Mockoon

Effortless API mocking for seamless development

Stars
8,218
Forks
460
Last commit
1 day ago

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

Open Source Alternative to:

Postman

UnKey

Secure, scalable API key management for developers

Stars
5,243
Forks
615
Last commit
6 hours ago

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

Open Source Alternative to:

Apigee

Trieve

AI-powered search and RAG platform for faster, more relevant results

Stars
2,640
Forks
241
Last commit
3 months ago

Trieve offers an all-in-one solution for search, recommendations, and RAG with automatic continuous improvement based on user feedback.

Open Source Alternative to:

Pinecone

Krakend

Blazing-fast API gateway with linear scalability

Stars
2,598
Forks
491
Last commit
11 days ago

High-performance, stateless API gateway built for microservices. Handle 80K+ requests/second with transparent pricing and enterprise-grade reliability.

Open Source Alternative to:

Apigee

Tailcall

The modern GraphQL runtime

Stars
1,433
Forks
256
Last commit
1 day ago

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
1,198
Forks
231
Last commit
3 hours ago

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
477
Forks
133
Last commit
22 hours ago

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
406
Forks
112
Last commit
4 hours ago

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

Open Source API Infrastructure Tools

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

LiveKit

Tyk

Mockoon

UnKey

Trieve

Krakend

Tailcall

WunderGraph

Hive

Gravitee

LiveKit

Tyk

Mockoon

UnKey

Trieve

Krakend

Tailcall

WunderGraph

Hive

Gravitee