Best API Gateway Products in 2026

Kong is the world’s most popular open-source API management gateway—built for hybrid and multi-cloud, optimized for microservices and distributed architectures.

Key Kong Enterprise features:

Scalability Feature-Rich High Availability Performance

One API for 80+ AI models — LLM, image, video & music — priced up to 80% below the official APIs. Pay only for successful calls; failed runs refunded; credits never expire.

Key you.bot features:

Models Pricing Billing

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Intelligent and complete API platform.

Key Apigee features:

Robust API Management Security Features Scalability Analytics and Monitoring

Gravitee.io is a flexible, lightweight and an open source API management solution.

Key Gravitee.io features:

Open-Source Foundation Extensibility Comprehensive API Management User-Friendly Interface

Open Source freemium

Tyk is an open-source API gateway and API management platform.

Key Tyk features:

Open Source Comprehensive Features High Performance Flexible Deployment

Open Source

Build production-grade & reliable AI apps with Portkey.

Key Portkey features:

Ease of Use Integration Capabilities Scalability Customization

API Gateway is a fully managed service to create, deploy, and manage APIs on Compute Engine, App Engine, Cloud Functions, and Cloud Run.

One library to standardize all LLM APIs.

Key liteLLM features:

Ease of Use Open Source Flexibility Integration Capabilities

API Manager enables you to manage users, analyze traffic, and secure APIs with policies, wherever your APIs are hosted and whatever technologies they run on.

Microsoft Azure API Management enables user to create consistent and modern API gateways for existing back-end services hosted anywhere, secure and protect them from abuse and overuse, and get insights into usage and health.

Key Azure API Management features:

Comprehensive API Gateway Seamless Integration Developer Portal Multi-Region Deployment

Open-source LLM Observability for Developers.

A router for LLMs and other AI models.

Ambassador is an open source Kubernetes-native API Gateway built on the Envoy Proxy.

Open Source

Your API & MCP Servers shipped and secured in record time.

Key Zuplo features:

API Developer Portal MCP API Key Management Rate Limiting

freemium