Kong Gateway

Kong Gateway is an open-source API gateway for routing and managing traffic across microservices and distributed systems. It is best suited to teams that need to run gateway infrastructure across Kubernetes, cloud, on-premises, or hybrid environments. Its deployment flexibility is the central advantage; organizations should weigh that against request allowances on paid Konnect plans and the lack of native Windows installation.

Overview

Kong is built for distributed architectures, with a choice of self-hosted gateway and Konnect plans. The range of configuration and deployment options can accommodate varied infrastructure, but it also makes Kong a stronger fit for teams prepared to make operational choices than for those seeking a narrowly defined, single-environment gateway.

Key features

Kong describes its NGINX engine as handling 50K+ transactions per second per node. That stated capacity will interest teams planning for substantial traffic, though throughput alone does not determine whether a gateway fits a particular workload.

Configuration is available through an API, a web UI, or declarative configuration, including changes managed in CI/CD pipelines. Teams can use the approach that suits their operating practices; the flexibility also means choosing how gateway configuration is managed rather than relying on a single prescribed workflow.

Deployment spans on-premises, cloud, Kubernetes, and serverless environments, in hybrid or cloud-hosted modes and with or without a database. This breadth is useful for organizations working across infrastructure boundaries. Built-in plugins handle security, authentication, transformation, and analytics, while the Plugin Development Kit supports custom plugins for teams whose requirements extend beyond the built-in set.

Kong Ingress Controller configures the gateway with Kubernetes-native resources and supports traffic management, transformations, and observability across clusters. Kong also supports REST, HTTP, Kafka, WebSockets, gRPC, GraphQL, UDP, TCP, and TLS. The breadth is relevant to teams managing varied API traffic, though protocol support does not remove the need to select and operate an appropriate deployment.

Security controls include plugins for security and authentication. Konnect pricing identifies role-based access control, or RBAC, while single sign-on and audit logs are Enterprise features. Konnect Plus includes email support with a two-business-day SLA; Enterprise adds dedicated customer success and technical account managers with higher SLAs. Teams that need those enterprise controls or support should account for the plan distinction.

Pricing

Kong Gateway Open Source is free and described as an open-source API gateway. The product page states no paid-plan limits for this edition, making it the natural starting point for teams that want the gateway without a Konnect allowance structure.

The Free trial costs nothing, requires no credit card, and lasts 30 days. It has no Gateway limits and retains analytics for 30 days. Konnect Free trial is also free for 30 days, with no credit card required, Enterprise functionality, no Gateway limits, and 30 days of analytics retention. These trials offer a time-limited way to assess the managed offering; neither should be mistaken for a continuing free Konnect plan.

Konnect Plus is billed per Gateway per month, billed monthly, with price not listed. It includes up to 5 serverless gateways, 2 hybrid gateways, and 2 dedicated cloud gateways, plus 1M API requests per month; each additional 1M requests costs $200/month. This suits teams able to work within those allowances, but growing request volume adds a defined cost and gateway counts are capped.

Konnect Enterprise has custom pricing billed annually, no Gateway limits, unlimited developer portals and published APIs, and fully self-hosted API gateways available. It is the fit for organizations needing those broader limits or self-hosting at the enterprise tier, with annual custom pricing rather than a published rate. The separate Plus plan summary also gives 1,000,000 API requests/month and 10,000,000 maximum API requests/month, with the same gateway counts; readers should distinguish that ceiling from the Konnect Plus overage terms. A paid-from figure of 25 /mo is also given, but without a plan or billing term attached, so it is not a reliable basis for comparing the named Konnect plans.

Platforms

Kong is available for API, Linux, self-hosted, and web environments. Installation documentation provides Linux packages and binaries, Docker images, and Kubernetes deployment instructions. Windows users need Docker: Kong does not provide a native Windows installation method. Kubernetes and Red Hat OpenShift are supported platforms.

Who it's for

Kong is a strong candidate for platform and API teams operating microservices across Kubernetes, hybrid, cloud, or self-hosted infrastructure, especially when they value configuration choice, plugins, and broad protocol support. Teams that need an API gateway but have little appetite for deployment and configuration decisions may prefer a more constrained service. Windows-only teams should also factor in the Docker requirement.

Pros and cons

• Pros: Deployment across on-premises, cloud, Kubernetes, and serverless environments gives infrastructure teams room to fit the gateway to a distributed estate.
• Pros: API, UI, and declarative configuration, along with built-in and custom plugins, provide several ways to adapt gateway operations and behavior.
• Pros: The open-source edition is free, while Konnect trials provide 30 days without a credit card.
• Cons: Konnect Plus limits gateway counts and includes 1M API requests per month; additional 1M requests cost $200/month.
• Cons: Konnect Enterprise uses custom annual pricing, so organizations cannot compare it against a published monthly rate.
• Cons: Windows installation requires Docker because there is no native Windows installer.

Alternatives

For a different API gateway with a free Apache 2.0 community edition and Windows among its listed platforms, consider Gravitee API Gateway. Teams focused on billing may prefer Lago, whose free Open source plan is AGPLv3-licensed and self-hosted. For API analytics, Moesif offers a free plan that starts after a 14-day trial. Teams seeking transaction monitoring can consider Revenium, whose free Observe plan includes 100,000 transactions per month, seven days of retention, and one user.

For usage-based pricing and entitlements, Stigg has a free Build plan with 10,000 managed entities and 5M usage events per month. Teams wanting a gateway with a continuing free tier can compare Zuplo, whose Free plan covers up to 100K requests per month. Eligible Apigee organizations in supported regions can use Apigee API hub at no additional cost. For billing operations, Flexprice has a free plan with 100k events per month and up to $100K in cumulative billing revenue.

Explore API Gateway Software for more gateway options, or browse API Monetization Software, API Marketplace Software, Service Mesh Platforms, API Developer Portal Software, and LLM Gateway Software for adjacent categories.

Verdict

Choose Kong Gateway if your team needs an open-source gateway that can span self-hosted, Kubernetes, cloud, and hybrid infrastructure, and can manage its configuration and deployment choices. Its main drawback is that Konnect Plus imposes gateway and request allowances, while Enterprise pricing is custom and annual. Teams that need predictable published pricing, or a native Windows installation, should look elsewhere.