One post tagged with "comparison"

Apache APISIX and Apigee are often compared, but they sit at different layers. APISIX is a high-performance, open-source API gateway focused on moving and governing traffic. Apigee is a comprehensive, commercial API management platform that includes a gateway plus the surrounding business and lifecycle tooling. For the gateway layer itself — performance, cost, and portability — APISIX is the stronger and far more economical choice; Apigee earns its place only when you genuinely need the full enterprise management suite wrapped around the gateway.

Overview#

Apigee is Google Cloud's enterprise API management platform. Beyond the gateway runtime, it provides a developer portal, detailed API analytics, monetization, and full API lifecycle management, with policies configured through a console and an XML-based policy model. It is offered as Apigee X (fully managed on Google Cloud) and Apigee hybrid (runtime in your own Kubernetes, management plane in Google Cloud). It targets large organizations running formal API programs.

Apache APISIX is an Apache Software Foundation top-level project: a gateway built on NGINX and LuaJIT, with etcd-backed dynamic configuration and 100+ plugins. It is free, self-hosted, and focused on the data plane, prioritizing performance, flexibility, and low cost.

Scope: Gateway vs Platform#

The most important distinction is scope.

APISIX is a gateway. It excels at routing, authentication, rate limiting, traffic shaping, protocol support, observability, and AI proxying. It is the runtime layer that sits in front of your services.

Apigee is a platform. It includes a gateway, but its value proposition extends to the full API business: onboarding external developers through a portal, analyzing API usage for product decisions, monetizing APIs, and governing them across their lifecycle.

This means the comparison is rarely feature-for-feature. The real question is whether you need a focused, high-performance gateway you can run anywhere, or an end-to-end managed API management suite, and whether you are willing to trade cost and portability for that breadth.

Architecture and Deployment#

Apache APISIX#

APISIX is self-hosted on any cloud, on-premises, or in Kubernetes. The data plane and control plane (Admin API plus etcd) deploy together, configuration changes propagate in real time, and you retain full control over where traffic flows and what it costs. There is no dependency on a specific cloud provider.

Apigee#

Apigee X is fully managed within Google Cloud, removing operational burden but coupling you to that environment. Apigee hybrid lets you run the runtime in your own Kubernetes clusters while the management plane remains in Google Cloud, offering more deployment flexibility while retaining the platform's management capabilities and its commercial model.

Cost#

Cost is frequently decisive. APISIX has no license fee; you pay only for the compute it runs on, and a single node sustains very high throughput, so cost per request stays low as traffic grows. Apigee is priced as an enterprise platform, typically based on API call volume and the capabilities you enable, which can become a major line item at scale. For teams whose primary need is a capable gateway, APISIX delivers that at a fraction of the platform cost.

Feature Comparison#

When to Choose Apache APISIX#

• You need a high-performance gateway, not a full management platform.
• Cost efficiency matters and per-call platform pricing is unattractive.
• Multi-cloud, hybrid, or on-premises deployment and no vendor lock-in.
• Flexibility to assemble your own management tooling around a focused, open-source core.

When to Choose Apigee#

• You need a complete API management program: developer portal, analytics, monetization, and lifecycle governance in one product.
• A fully managed platform is preferred and Google Cloud is your environment.
• Enterprise governance and a polished external developer experience are priorities.
• Budget exists for an enterprise platform in exchange for that breadth.

FAQ#

Is Apache APISIX a full API management platform like Apigee?#

Not on its own. APISIX is a high-performance API gateway focused on the runtime: routing, authentication, rate limiting, traffic management, observability, and AI gateway features. Apigee is a broader API management platform that also includes a developer portal, deep API analytics, monetization, and lifecycle governance. To build a full API management program around APISIX, you pair it with complementary tooling for those higher-level functions.

How do the costs of Apache APISIX and Apigee compare?#

APISIX is free and open source under the Apache 2.0 license; your cost is the infrastructure you run it on. Apigee is a commercial enterprise platform with pricing based on API calls and capabilities, which can be substantial at scale. Organizations focused primarily on gateway functionality often find APISIX far more cost-effective, while those needing Apigee's full management suite weigh that against its platform cost.

Does Apache APISIX offer a developer portal and analytics like Apigee?#

APISIX provides strong runtime observability through integrations with Prometheus, OpenTelemetry, Datadog, SkyWalking, and others, but the open-source project does not bundle a polished developer portal, business-level API analytics, or monetization the way Apigee does. Teams that need those capabilities integrate additional tools alongside APISIX, whereas Apigee delivers them as part of one platform.

How do I migrate from Apigee to Apache APISIX?#

Migration usually starts with the gateway runtime: map Apigee API proxies to APISIX routes and upstreams, and translate Apigee policies (for authentication, quotas, spike arrest, and transformation) to the equivalent APISIX plugins. Higher-level Apigee features such as the developer portal and monetization are addressed separately with complementary tooling. Running both in parallel and shifting traffic incrementally allows a controlled, low-risk migration.

Related#

• All API gateway comparisons
• What is an API gateway?
• Apache APISIX vs AWS API Gateway
• Apache APISIX vs Kong
• Get started with Apache APISIX

Apache APISIX and AWS API Gateway solve the same problem from opposite directions. APISIX is a self-hosted, open-source gateway you run on any infrastructure, while AWS API Gateway is a fully managed, serverless service tightly integrated with the AWS ecosystem. The choice comes down to control and cost versus managed convenience and lock-in.

Overview#

AWS API Gateway is a managed service that handles API traffic without any servers for you to operate. It offers REST APIs, lower-cost HTTP APIs, and WebSocket APIs, and integrates natively with AWS Lambda, IAM, Cognito, CloudWatch, and WAF. You configure it through the AWS console, CloudFormation, or Terraform, and AWS operates and scales the underlying infrastructure.

Apache APISIX is a top-level Apache Software Foundation project: a high-performance gateway built on NGINX and LuaJIT, with configuration stored in etcd and pushed to all nodes in real time. You deploy and operate it yourself, on any cloud, on-premises, or in Kubernetes, with no per-request platform fees.

Architecture Comparison#

Apache APISIX Architecture#

APISIX runs as a self-hosted data plane with a built-in control plane: an Admin API, etcd-backed configuration, an optional dashboard, and a 100+ plugin ecosystem. Because configuration lives in etcd and propagates instantly, routes and policies change without restarts. You own the full request path, which means you can deploy APISIX next to your services in any environment and tune it to your hardware.

AWS API Gateway Architecture#

AWS API Gateway is serverless. There is no instance to size, patch, or scale, and high availability is handled by AWS within a region. Backends are typically Lambda functions, HTTP endpoints, or other AWS services, wired through integrations. The tradeoff is that the data plane is a black box: you configure behavior through AWS abstractions (stages, resources, authorizers, mapping templates) rather than operating the proxy directly, and behavior is bounded by AWS service limits.

Pricing and Cost at Scale#

The pricing models are fundamentally different, and this is often the deciding factor.

AWS API Gateway charges per request, plus data transfer and optional caching. This is attractive at low volume because you pay nothing when idle, but cost grows linearly with traffic. At high, sustained request volumes the per-request fee can dominate the total cost of an API platform.

Apache APISIX has no per-request fee. The cost is the compute you run it on, which is largely fixed regardless of how many requests flow through. A single modest node handles very high throughput, so cost per request falls as traffic grows.

A useful rule of thumb: managed per-request pricing favors low or unpredictable traffic, while self-hosting favors sustained high volume where fixed infrastructure cost is amortized across many requests.

Performance and Limits#

AWS API Gateway is designed for elasticity rather than minimal latency, and it enforces hard service limits such as integration timeouts and per-region request quotas (some of which are soft limits you can request increases for). These rarely matter for typical workloads but can constrain long-running, high-throughput, or large-payload APIs.

APISIX is optimized for low, predictable per-request overhead using NGINX's event-driven model and radix-tree route matching. Running it close to your backends removes extra network hops. Because you control the deployment, you can benchmark and tune for your own latency and throughput targets rather than working within a managed service's quotas.

Feature Comparison#

Vendor Lock-in and Portability#

The strongest argument for a self-hosted gateway is portability. AWS API Gateway configuration, authorizers, and VTL templates are specific to AWS; moving to another cloud or on-premises means rebuilding the gateway layer. APISIX configuration is portable: the same routes, plugins, and upstreams run identically on any cloud, in your own data center, or across a hybrid deployment. For organizations pursuing multi-cloud strategies, data-residency requirements, or simply avoiding lock-in, this portability is decisive.

When to Choose Apache APISIX#

• Sustained high traffic where per-request pricing would dominate cost.
• Multi-cloud, hybrid, or on-premises deployments and data-residency requirements.
• Full control over the data plane, custom plugins, and the latency floor.
• Rich gateway features (advanced traffic management, multi-protocol, AI proxy) without a managed service's constraints.
• Avoiding vendor lock-in with a portable, open-source configuration.

When to Choose AWS API Gateway#

• All-in on AWS with Lambda or other AWS services as backends.
• Low or spiky traffic where paying per request beats running infrastructure.
• No operational appetite for running and scaling a gateway yourself.
• Tight AWS-native integration with IAM, Cognito, and CloudWatch as a priority.

FAQ#

Is Apache APISIX cheaper than AWS API Gateway?#

It depends on traffic volume. AWS API Gateway charges per request plus data transfer, so cost scales linearly with traffic and becomes significant at high volumes. Apache APISIX is free and open source; you pay only for the compute you run it on, which is a largely fixed cost regardless of request count. For low or spiky traffic, the managed convenience of AWS API Gateway often outweighs its per-request cost. For sustained high-volume APIs, self-hosting APISIX is typically far cheaper per request.

Can I run Apache APISIX on AWS?#

Yes. APISIX runs anywhere you can run a container or a Linux host, including EC2, EKS, and ECS. Many teams run APISIX on AWS to keep traffic inside their VPC while avoiding per-request gateway fees and retaining the ability to move to another cloud or on-premises later without rewriting their gateway configuration.

How do I migrate from AWS API Gateway to Apache APISIX?#

The common approach is to stand up APISIX behind the same DNS or load balancer and shift routes incrementally. Map each API Gateway stage and resource to an APISIX route and upstream, translate authorizers to APISIX authentication plugins, and replace VTL mapping templates with request and response transformation plugins. Shifting traffic route by route with health checks allows a zero-downtime migration.

Does AWS API Gateway or Apache APISIX add more latency?#

A self-hosted APISIX deployment running close to your backends typically adds sub-millisecond proxy overhead and avoids extra network hops. AWS API Gateway is a managed regional service, so requests traverse AWS infrastructure and are subject to service limits such as integration timeouts. For latency-sensitive workloads where you control the network path, a self-hosted gateway gives you more control over the latency floor.

Related#

• All API gateway comparisons
• What is an API gateway?
• Apache APISIX vs Apigee
• Apache APISIX vs Kong
• Get started with Apache APISIX

If you need an API gateway, Apache APISIX is the more direct choice. APISIX is a complete gateway you can run immediately, with a built-in control plane and a 100+ plugin ecosystem. Envoy is a powerful, programmable proxy, but on its own it is not an API gateway: it is a data plane that has to be driven by a separate control plane, and it is most at home as the sidecar inside a service mesh. For the typical north-south API gateway need, APISIX gets you to a working gateway with far less to assemble and operate.

Overview#

Envoy is a CNCF graduated project, a high-performance L7 and L4 proxy written in C++. It was created as a universal data plane and is best known as the sidecar proxy in service meshes such as Istio, as well as a building block for edge gateways like Gloo and Contour. Envoy is configured statically through a bootstrap file or dynamically through the xDS family of APIs, which requires a control plane to supply that configuration.

Apache APISIX is an Apache Software Foundation top-level project: a gateway built on NGINX and LuaJIT, with configuration in etcd and a 100+ plugin ecosystem. It includes its own control plane, so a single deployment gives you a fully functional API gateway without assembling additional components.

Architecture Comparison#

Apache APISIX Architecture#

APISIX bundles the data plane and control plane together. The Admin API writes configuration into etcd, which pushes changes to all proxy nodes in real time. Gateway features are delivered as plugins that run in the request lifecycle, and an optional dashboard provides a UI. Because the control plane is built in, getting from zero to a working, dynamically configurable gateway is fast.

Envoy Architecture#

Envoy is intentionally just the data plane. Its power comes from the xDS APIs (LDS, RDS, CDS, EDS, and others), which let an external control plane reconfigure listeners, routes, clusters, and endpoints at runtime. This separation suits large platforms that want to build their own control logic, and it is the foundation of service meshes. For a team that simply needs an API gateway, though, it is overhead: Envoy alone is not a turnkey gateway. You either hand-write verbose bootstrap configuration or adopt and operate a separate control plane such as Istio, Gloo, or Contour, each significant software in its own right — whereas APISIX ships its control plane in the box.

Extensibility#

APISIX extends through plugins. It ships with 100+ built-in plugins and supports custom plugins in Lua, plus Go, Java, and Python through external plugin runners and Wasm for sandboxed extensions. Adding a capability is usually a matter of enabling and configuring a plugin.

Envoy extends through native C++ filters and Wasm filters, and increasingly through control-plane abstractions. This is extremely powerful and is how advanced mesh features are built, but it generally demands deeper engineering investment than enabling a plugin.

Feature Comparison#

When to Choose Apache APISIX#

• You need a complete API gateway for north-south traffic without assembling a control plane.
• Faster time to a working gateway, with authentication, rate limiting, and routing ready to enable.
• A plugin ecosystem and AI gateway features available immediately.
• Lower operational complexity for edge and ingress use cases.

When to Choose Envoy#

• A service mesh with sidecar proxies and service-to-service mTLS, typically via Istio.
• A custom platform where you want to build your own control plane on xDS.
• Deep, low-level programmability through native C++ filters.
• Standardizing one data plane across both edge and in-mesh traffic with your own tooling.

Working Together#

These projects are not mutually exclusive. A common pattern places APISIX at the edge as the API gateway, handling authentication, rate limiting, and routing for incoming traffic, while Envoy operates inside the cluster as the service mesh data plane for service-to-service communication. Choosing APISIX for the gateway role does not preclude using Envoy where it excels.

FAQ#

Are Apache APISIX and Envoy competitors or complementary?#

They overlap but often complement each other. APISIX is most commonly used as a north-south API gateway for traffic entering your platform from clients, while Envoy is most commonly used as the east-west data plane inside a service mesh for service-to-service traffic. Many organizations run APISIX at the edge and Envoy inside the mesh. They compete directly only when you evaluate one of them for the edge gateway role.

Is Envoy faster than Apache APISIX?#

Both are high-performance proxies and both are fast enough that raw proxy speed is rarely the deciding factor. Envoy is written in C++ and APISIX is built on NGINX and LuaJIT; real-world throughput depends heavily on your configuration, plugin or filter chain, and hardware. The more meaningful difference is operational: APISIX gives you a complete gateway out of the box, whereas Envoy's performance comes with a more complex configuration model.

Does Apache APISIX need a separate control plane like Envoy does?#

No. APISIX ships with its own control plane: an Admin API, etcd-backed configuration, and an optional dashboard. You can run a working gateway immediately. Envoy is a data plane only; to configure it dynamically you must run a separate control plane that speaks the xDS protocol, such as Istio, Gloo, or Contour. That control plane is additional software to operate.

Should I use Apache APISIX or Envoy for a service mesh?#

For a full service mesh with sidecar proxies and service-to-service mTLS, Envoy (typically through Istio) is the established choice; it was designed for that role. For an API gateway handling north-south traffic at the edge, with authentication, rate limiting, and a plugin ecosystem ready to use, APISIX is the more direct fit. The two roles are different, and many platforms use both.

Related#

• All API gateway comparisons
• What is an API gateway?
• Apache APISIX vs NGINX
• Apache APISIX vs Traefik
• Get started with Apache APISIX

NGINX is the foundation that powers much of the web as a reverse proxy and load balancer, and Apache APISIX is built directly on top of it. The real comparison is not NGINX versus a competitor, but whether to assemble an API gateway from NGINX yourself versus using a purpose-built gateway that already provides the gateway layer on the same high-performance core.

Overview#

NGINX (open source) is a web server, reverse proxy, and load balancer. It can act as an API gateway, but you build that capability yourself through configuration files and, for advanced logic, the njs scripting module or Lua. NGINX Plus, the commercial edition, adds dynamic reconfiguration, active health checks, JWT authentication, and a monitoring dashboard.

Apache APISIX uses NGINX and LuaJIT (through OpenResty) as its data plane, then adds a complete API gateway on top: etcd-backed dynamic configuration, an Admin API, 100+ plugins, service discovery, and a dashboard. It is an Apache Software Foundation top-level project under the Apache 2.0 license.

Architecture Comparison#

Apache APISIX Architecture#

APISIX keeps NGINX's event-driven request handling for raw performance, but moves configuration out of static files and into etcd. Changes to routes, upstreams, and plugins propagate to every node in real time, with no reloads. Cross-cutting concerns are handled by plugins rather than hand-written configuration, and everything is managed through a REST Admin API. The result is NGINX-class throughput with the operational model of a modern, dynamic gateway.

NGINX Architecture#

Plain NGINX stores its configuration in nginx.conf and related files. Applying a change requires a reload, and while reloads are graceful, configuration is fundamentally static at runtime. API gateway behavior such as per-consumer rate limiting, token authentication, or request transformation must be expressed through directives, njs, or Lua modules that you write and maintain. NGINX Plus relaxes some of these limits with a runtime reconfiguration API and built-in modules, on a commercial subscription.

Dynamic Configuration#

This is the clearest practical difference. With open-source NGINX, adding a route or changing an upstream means editing configuration and reloading the process. In dynamic environments, such as Kubernetes with ephemeral pods or frequent deployments, this static model adds friction.

APISIX treats configuration as live data. Routes and policies can be created, updated, and removed through the Admin API and take effect within milliseconds, with no reload and no dropped connections. This makes APISIX a natural fit for service discovery, canary releases, and automation-driven platforms.

Feature Comparison#

When to Choose Apache APISIX#

• You need API gateway features (dynamic routing, authentication, rate limiting, transformation) without hand-building them in NGINX configuration.
• Dynamic, automation-driven environments where reload-based config is a bottleneck.
• A rich plugin ecosystem and AI gateway without a commercial license.
• NGINX-class performance combined with a modern control plane.

When to Choose NGINX#

• Simple reverse proxy, load balancing, or static web serving without full gateway requirements.
• An existing, finely tuned NGINX deployment that already meets your needs.
• Deep, low-level control over NGINX directives for specialized use cases.
• An existing NGINX Plus subscription that already covers your dynamic configuration and authentication needs.

FAQ#

Isn't Apache APISIX just NGINX with extra steps?#

APISIX is built on top of NGINX and LuaJIT (via OpenResty), so it inherits NGINX's proven performance, but it is not just NGINX. APISIX adds a full API gateway layer that plain NGINX lacks: dynamic configuration through etcd with no reloads, an Admin API, a 100+ plugin ecosystem for authentication, rate limiting, and observability, service discovery, and a dashboard. You get NGINX's data plane plus a complete control plane out of the box.

Do I need to know NGINX to run Apache APISIX?#

No. APISIX is configured through its Admin API, declarative YAML, or its dashboard, using high-level concepts like routes, upstreams, services, and plugins. You do not write or maintain nginx.conf. Familiarity with NGINX concepts can help with advanced tuning, but day-to-day operation does not require editing NGINX configuration files.

How does Apache APISIX compare to NGINX Plus?#

NGINX Plus is the commercial edition of NGINX, adding dynamic reconfiguration, active health checks, JWT authentication, and a dashboard on a subscription. APISIX provides comparable dynamic configuration, health checking, and authentication, plus a much larger plugin ecosystem and AI gateway features, as open-source software under the Apache 2.0 license with no per-instance fee. Teams evaluating NGINX Plus for gateway features often find APISIX covers the same needs without licensing cost.

Can I migrate my nginx.conf to Apache APISIX?#

Most nginx.conf reverse-proxy setups map cleanly onto APISIX concepts: server and location blocks become routes, proxy_pass upstreams become APISIX upstreams, and directives like rate limiting, header rewriting, and access control become plugins. The main shift is moving from a static file that requires reloads to dynamic configuration managed through the Admin API, which removes reload-related downtime.

Related#

• All API gateway comparisons
• What is an API gateway?
• Apache APISIX vs Envoy
• Apache APISIX vs Traefik
• Get started with Apache APISIX

Apache APISIX and Traefik are both modern, cloud-native gateways, but they optimize for different things. APISIX prioritizes raw performance and a broad, ready-to-use feature set. Traefik prioritizes developer experience through automatic service discovery and configuration. For most production API workloads — where throughput, feature breadth, and predictable, auditable configuration matter — APISIX is the stronger choice; Traefik is most compelling for container-native setups that value automatic discovery over fine-grained control.

Overview#

Traefik (Traefik Proxy) is an open-source edge router written in Go. Its signature feature is automatic configuration: it discovers services from providers such as Docker labels, Kubernetes resources, and Consul, and wires up routes without manual definitions. It includes automatic HTTPS through Let's Encrypt, a dashboard, and middlewares for cross-cutting concerns. Commercial tiers (Traefik Hub and Traefik Enterprise) add further capabilities.

Apache APISIX is an Apache Software Foundation top-level project built on NGINX and LuaJIT, with configuration stored in etcd and a 100+ plugin ecosystem. It targets high throughput, low latency, broad protocol support, and rich gateway features, configured explicitly through an Admin API, declarative YAML, or a dashboard.

Architecture Comparison#

Apache APISIX Architecture#

APISIX uses NGINX's event-driven data plane with Lua plugins and stores configuration in etcd, which propagates changes to all nodes in real time. Routes, upstreams, and plugins are defined explicitly, which gives precise control over behavior. The architecture is tuned for high single-node throughput and predictable latency, and it supports a wide range of protocols beyond HTTP.

Traefik Architecture#

Traefik is built around providers and dynamic discovery. Instead of defining routes by hand, you label your containers or annotate your Kubernetes resources, and Traefik builds its routing table automatically and keeps it in sync as services come and go. This is excellent for fast-moving container environments. Being written in Go, Traefik benefits from a simple deployment model (a single binary) but generally trades some raw throughput compared to an OpenResty-based data plane.

Performance#

Performance is a frequent reason teams choose APISIX. Its NGINX and LuaJIT foundation and radix-tree route matching deliver high throughput and low per-request overhead, which becomes important at scale where small overheads multiply into real infrastructure cost. Traefik is fast enough for a large share of workloads, but Go's runtime characteristics typically place its peak throughput below an OpenResty-based gateway. For latency-sensitive or very high-volume APIs, APISIX usually has the edge; for moderate traffic, both perform comfortably. Benchmark with your own workload to be sure.

Developer Experience and Configuration#

Traefik's strength is auto-discovery: a developer can deploy a container with a few labels and have it routed and served over HTTPS automatically, with minimal gateway knowledge. In container-heavy environments this is genuinely convenient, but it is a tradeoff — implicit, label-driven configuration is harder to audit, and behavior can shift as labels change.

APISIX favors explicit configuration. Routes and plugins are declared deliberately, which is more setup up front but yields fine-grained control, clearer auditability, and behavior that does not change implicitly as labels change. APISIX also supports service discovery integrations (Nacos, Consul, Eureka, Kubernetes), narrowing the gap for dynamic environments while keeping configuration explicit.

Feature Comparison#

When to Choose Apache APISIX#

• High throughput and low latency are priorities, especially at scale.
• A broad, built-in feature set including advanced traffic management and AI gateway capabilities.
• Multi-protocol support beyond HTTP (gRPC, MQTT, Dubbo, TCP/UDP).
• Explicit, auditable configuration with real-time dynamic updates.

When to Choose Traefik#

• Container-native auto-discovery with minimal manual configuration.
• Automatic HTTPS through built-in Let's Encrypt integration.
• Docker and Kubernetes label-driven workflows where convention beats configuration.
• A simple single-binary Go deployment for small to moderate workloads.

FAQ#

Is Traefik easier to set up than Apache APISIX?#

Traefik is known for fast setup in container environments because it auto-discovers services from Docker labels or Kubernetes resources and configures itself, with automatic HTTPS through Let's Encrypt. For a small containerized setup this is very convenient. APISIX requires defining routes and upstreams explicitly, but provides more control and a richer feature set in return. For simple auto-wired deployments Traefik feels lighter; for feature-rich gateways APISIX's explicit model pays off.

How do Apache APISIX and Traefik compare on performance?#

APISIX is built on NGINX and LuaJIT, while Traefik is written in Go. APISIX generally achieves higher single-node throughput and lower, more predictable latency, which matters most at high request volumes where per-request overhead compounds. Traefik performs well for many workloads, but teams prioritizing maximum throughput and a low latency floor tend to favor APISIX. As always, benchmark with your own workload and hardware.

Which has a larger plugin ecosystem, Apache APISIX or Traefik?#

APISIX ships with 100+ built-in plugins and supports custom plugins in Lua, Go, Java, Python, and Wasm. Traefik uses middlewares for cross-cutting concerns and supports plugins through a Go interpreter and Wasm, with a smaller catalog. Teams needing a broad set of ready-made capabilities, including AI gateway features, generally find more available in APISIX out of the box.

Do both Apache APISIX and Traefik support Kubernetes and the Gateway API?#

Yes. Both run as Kubernetes ingress controllers and both support the Kubernetes Gateway API. Traefik is known for automatically discovering Kubernetes services and configuring routes from annotations and CRDs. APISIX provides its own ingress controller with CRDs, standard Ingress support, and Gateway API support, with configuration propagated through etcd in real time.

Related#

• All API gateway comparisons
• What is an API gateway?
• Apache APISIX vs NGINX
• Apache APISIX vs Envoy
• Get started with Apache APISIX

Apache APISIX and Kong are the two most widely adopted open-source API gateways, both built on NGINX and Lua. APISIX differentiates itself with a fully dynamic architecture powered by etcd, higher single-core throughput, and a broader protocol support matrix, while Kong offers a mature enterprise ecosystem with extensive third-party integrations and a large plugin marketplace.

Overview#

Both projects serve as high-performance, extensible API gateways for microservices architectures. Kong was open-sourced in 2015 and has built a substantial commercial ecosystem around Kong Gateway Enterprise, Kong Konnect, and the Kong Plugin Hub. Apache APISIX entered the Apache Software Foundation incubator in 2019 and graduated as a top-level project in 2020, with rapid community growth.

Both projects are recognized as production-grade gateways and see active production deployments worldwide.

Architecture Comparison#

The architectural differences between APISIX and Kong are fundamental and affect day-to-day operations, scalability, and deployment complexity.

Apache APISIX Architecture#

APISIX uses NGINX as its data plane with Lua plugins running in the request lifecycle. Configuration is stored in etcd, a distributed key-value store that pushes changes to all gateway nodes in real time via watch mechanisms. This architecture means that route changes, plugin updates, and upstream modifications take effect within milliseconds without requiring restarts or reloads. There is no relational database dependency.

The etcd-based design gives APISIX a stateless data plane: any node can be added or removed without migration steps or database schema changes. This makes horizontal scaling straightforward and reduces operational overhead significantly in Kubernetes environments where pods are ephemeral.

Kong Architecture#

Kong also uses NGINX and Lua for its data plane. Configuration is stored in PostgreSQL or Cassandra (though Cassandra support has been deprecated in newer versions). Kong's DB-mode requires database migrations when upgrading, and configuration changes propagate through a polling mechanism with a configurable cache TTL, which introduces a delay between API calls to the Admin API and actual enforcement at the proxy layer.

Kong also offers a DB-less mode where configuration is loaded from a declarative YAML file, which eliminates the database dependency but sacrifices the ability to modify configuration dynamically through the Admin API at runtime. Kong's commercial offering, Konnect, provides a managed control plane that addresses many of these operational concerns.

Performance Benchmarks#

Performance characteristics matter at scale, where even small per-request overhead compounds into significant infrastructure costs.

Key architectural differences that affect performance:

• Route matching: APISIX uses a radix tree-based routing algorithm. Kong uses a different matching approach. The routing algorithm affects lookup time as the number of routes grows.
• Configuration propagation: APISIX pushes configuration changes from etcd to all nodes in real time. Kong's DB-mode polls the database on a configurable interval, introducing a delay between configuration changes and enforcement.
• Memory model: Both use NGINX's event-driven architecture, but their plugin execution models differ in per-request allocation patterns.

We recommend benchmarking both gateways with your actual workload, plugin chain, and hardware to get meaningful performance comparisons. Vendor-published benchmarks often test under ideal conditions that may not reflect your production environment.

For many production deployments, both gateways provide sufficient throughput, and the choice often depends on factors beyond raw performance such as ecosystem maturity, plugin availability, and operational familiarity.

Feature Comparison#

Both gateways support core functionality like rate limiting, authentication (JWT, OAuth 2.0, API key, LDAP), load balancing, health checks, and circuit breaking. The primary differences lie in the breadth of built-in features available in the open-source edition versus features gated behind enterprise licensing.

Plugin Ecosystem#

APISIX ships with over 80 built-in plugins covering authentication, security, traffic management, observability, and protocol transformation. Notably, plugins for serverless functions (running custom Lua, Java, or Go code inline), AI proxy routing, and advanced traffic management are available in the open-source edition.

Kong's open-source edition includes approximately 40 built-in plugins, with a substantial number of additional plugins available through Kong Plugin Hub and the enterprise edition. Kong's plugin marketplace includes many third-party and partner-contributed plugins, giving it a broader ecosystem for specific vendor integrations like Datadog, PagerDuty, and Moesif.

For custom plugin development, APISIX supports external plugins via gRPC-based plugin runners in Go, Java, and Python, as well as Wasm-based plugins that run in a sandboxed environment. Kong offers a Plugin Development Kit (PDK) supporting Go, JavaScript, and Python alongside native Lua plugins. Both projects accept community-contributed plugins, and their ecosystems continue to grow.

Kubernetes Integration#

Both gateways offer mature Kubernetes ingress controllers, though they differ in design philosophy.

The APISIX Ingress Controller supports both custom resource definitions (CRDs) specific to APISIX and standard Kubernetes Ingress resources. It communicates with the APISIX data plane through the Admin API and supports Gateway API, the emerging Kubernetes standard for traffic management. Configuration changes propagate instantly through etcd.

The Kong Ingress Controller (KIC) also supports CRDs and standard Kubernetes Ingress resources, with Kong-specific annotations for extended functionality. KIC translates Kubernetes resources into Kong configuration, applying them through the Admin API. KIC has a longer track record in production Kubernetes environments and benefits from extensive documentation and community resources.

Both controllers are actively maintained and see regular releases aligned with Kubernetes version updates.

Community and Ecosystem#

APISIX benefits from Apache Software Foundation governance, which ensures vendor-neutral development and community-driven roadmap decisions. Kong benefits from the backing of Kong Inc., which provides dedicated engineering resources, enterprise support, and a commercial ecosystem that many large organizations value.

Both projects maintain active community forums, Slack channels, and regular release cadences. Kong's longer market presence gives it an advantage in terms of available tutorials, third-party integrations, and consultant familiarity.

When to Choose Apache APISIX#

APISIX is the stronger choice when your requirements include:

• Dynamic configuration at scale: Environments where routes and plugins change frequently benefit from etcd-based instant propagation without restarts.
• Maximum open-source functionality: Teams that need advanced features like traffic splitting, AI proxy, and multi-protocol support without enterprise licensing.
• High-performance requirements: Workloads where per-request latency and single-core throughput directly impact infrastructure costs.
• Kubernetes-native deployments: Organizations adopting Gateway API and wanting tight integration with cloud-native service discovery (Nacos, Consul, Eureka).
• Vendor-neutral governance: Teams that prefer Apache Software Foundation stewardship over single-vendor control.

When to Choose Kong#

Kong is the stronger choice when your requirements include:

• Mature enterprise ecosystem: Organizations that need commercial support, SLA guarantees, and a proven enterprise deployment track record.
• Extensive third-party integrations: Environments with specific vendor integration needs covered by Kong's plugin marketplace.
• Existing Kong investment: Teams already running Kong in production where migration cost outweighs technical advantages.
• Managed control plane: Organizations that prefer a SaaS-managed control plane (Kong Konnect) to reduce operational burden.
• Broad hiring market: Teams that can more easily find engineers with Kong experience due to its longer market presence.

FAQ#

Can APISIX and Kong run side by side during a migration?#

Yes. Both gateways can operate in parallel by splitting traffic at the load balancer level. A common migration strategy routes new services through APISIX while existing services continue running through Kong. Gradual traffic shifting with health checks ensures zero-downtime migration. The timeline depends on the number of routes, custom plugins, and testing requirements.

Is APISIX harder to operate because it requires etcd?#

etcd adds a dependency compared to Kong's DB-less mode, but in practice, etcd is a well-understood, battle-tested component already present in most Kubernetes clusters (it is the backing store for Kubernetes itself). Operating etcd requires standard distributed systems practices: run an odd number of nodes (3 or 5), monitor disk latency, and maintain regular snapshots. For teams already running Kubernetes, etcd operational knowledge is typically already available. The operational cost of etcd is generally lower than managing PostgreSQL migrations required by Kong's DB-mode.

Which gateway has better AI and LLM support?#

Both gateways are investing in AI gateway capabilities, but they approach it differently. APISIX provides the ai-proxy plugin in its open-source edition, supporting multi-model routing, token-based rate limiting, and prompt transformation for major LLM providers. Kong offers AI Gateway plugins primarily through its enterprise edition and Konnect platform. For teams building AI-powered applications on an open-source budget, APISIX currently provides more built-in AI functionality without licensing costs.

How do the two gateways compare on gRPC and streaming support?#

APISIX provides native gRPC proxying, gRPC-Web transcoding, and HTTP-to-gRPC transformation out of the box, along with support for HTTP/3 (QUIC), Dubbo, and MQTT protocols. Kong supports gRPC proxying and gRPC-Web through plugins, with HTTP/2 support on both client and upstream connections. For teams heavily invested in gRPC or multi-protocol architectures, APISIX's broader built-in protocol support reduces the need for custom plugins or sidecars.

Related#

• All API gateway comparisons
• What is an API gateway?
• Apache APISIX vs NGINX
• Apache APISIX vs AWS API Gateway
• Get started with Apache APISIX

An open-source API gateway sits between clients and backend services, handling routing, authentication, rate limiting, and observability. Apache APISIX, Kong, Envoy, and Traefik are among the most widely adopted options, each with distinct architectural decisions that affect performance, extensibility, and operational complexity.

Why the Choice of API Gateway Matters#

Organizations running microservices at scale route millions of requests per day through their gateway layer. The gateway you choose determines your latency floor, plugin flexibility, and how much operational overhead your platform team absorbs.

Choosing poorly means rearchitecting under pressure. Choosing well means a gateway that scales with your traffic for years without becoming a bottleneck.

Feature Comparison Table#

Note: Feature details are based on each project's official documentation as of early 2026. Check the respective project sites for the latest status.

Detailed Breakdown#

Apache APISIX#

Apache APISIX is built on NGINX and LuaJIT, using etcd as its configuration store. This architecture eliminates database dependencies on the data path: route changes propagate to every gateway node within milliseconds without restarts or reloads.

The plugin ecosystem includes over 100 built-in options spanning authentication (JWT, key-auth, OpenID Connect), traffic management (rate limiting, circuit breaking), observability (Prometheus, Zipkin, OpenTelemetry), and transformation (request/response rewriting, gRPC transcoding). Developers can write custom plugins in Lua, Go, Java, Python, or WebAssembly, making it one of the most polyglot gateway runtimes available.

APISIX supports the Kubernetes Ingress Controller pattern natively. The APISIX Ingress Controller watches Kubernetes resources and translates them into APISIX routing configuration, enabling declarative GitOps workflows while preserving the full plugin surface.

As an Apache Software Foundation top-level project, APISIX is community-governed and vendor-neutral.

Kong#

Kong is the longest-established open-source API gateway, with a mature commercial ecosystem. It shares the NGINX + LuaJIT foundation with APISIX but relies on PostgreSQL or Cassandra as its configuration store. This architectural choice introduces a database dependency for configuration storage, which adds operational complexity for HA deployments.

Kong's plugin hub offers approximately 60 bundled plugins in the open-source edition, with additional enterprise-only plugins for advanced features like OAuth2 introspection and advanced rate limiting. The Go Plugin Development Kit (PDK) allows extending Kong in Go, though Lua remains the primary plugin language.

Kong has a strong enterprise support ecosystem with commercial offerings (Kong Gateway Enterprise, Kong Konnect) and a large user community.

Envoy#

Envoy is a high-performance C++ proxy originally built at Lyft, now a CNCF graduated project. It excels as a service mesh data plane and is the foundation for Istio, AWS App Mesh, and other mesh implementations.

Envoy's configuration model uses the xDS (discovery service) API, a gRPC-based protocol that pushes configuration updates from a control plane. This design is powerful but means Envoy does not function as a standalone gateway without a control plane component. Organizations adopting Envoy as an edge gateway typically pair it with a control plane like Gloo Edge or similar tools.

The filter chain model supports around 30 built-in HTTP filters. Custom extensions require C++ or WebAssembly, raising the barrier for teams without C++ expertise. Envoy is most commonly deployed as a sidecar proxy within a service mesh, though it is also used as an edge proxy.

Traefik#

Traefik is written in Go and designed for automatic service discovery. It integrates natively with Docker, Kubernetes, Consul, and other orchestrators, automatically detecting new services and generating routes without manual configuration. This auto-discovery model makes Traefik popular for development environments and smaller-scale production deployments.

Traefik includes built-in Let's Encrypt integration for automatic TLS certificate provisioning, a feature that requires additional tooling in other gateways. Its middleware system offers approximately 30 built-in options covering authentication, rate limiting, headers manipulation, and circuit breaking.

Traefik has a large community and is widely used in Docker-native environments.

Performance Considerations#

Performance varies significantly based on configuration, plugin chains, TLS termination, and upstream complexity. When evaluating gateways, run your own benchmarks with your actual workload patterns rather than relying on vendor-published numbers.

Key factors that affect gateway performance:

• Architecture: C++ and LuaJIT-based gateways (Envoy, APISIX, Kong) generally achieve lower latency than pure Go implementations
• Configuration store: Gateways that avoid database queries on the data path (APISIX, Envoy) tend to have more consistent latency
• Plugin overhead: Each active plugin adds processing time. Test with your actual plugin chain enabled
• Connection handling: The NGINX event-driven model (APISIX, Kong) handles high concurrency efficiently

We recommend benchmarking the specific gateways you are considering with a representative workload on hardware similar to your production environment.

When to Choose Which#

Choose Apache APISIX when you need a large built-in plugin ecosystem, fully dynamic configuration without restarts, multi-language plugin support, and no database dependency. It suits teams building platform-grade API infrastructure. See the getting started guide to evaluate it hands-on.

Choose Kong when you are operating in an enterprise environment with existing Kong deployments, need commercial support, or require specific enterprise-only plugins. Kong's maturity means more third-party integrations and consultants are available.

Choose Envoy when your primary use case is a service mesh data plane, you need advanced load balancing algorithms, or you are already running Istio or a similar mesh. Envoy is less suited as a standalone edge gateway due to its control plane dependency.

Choose Traefik when auto-discovery and zero-configuration routing are priorities, or you need built-in Let's Encrypt integration without additional tooling. Traefik excels in Docker-native and small-to-medium Kubernetes environments.

Migration Considerations#

Migrating between gateways is nontrivial and typically requires careful planning. Key factors include:

• Plugin compatibility: Not all plugins have equivalents across gateways. Audit your active plugins and identify gaps before migrating.
• Configuration translation: Each gateway uses a different configuration format. Automated translation tools can help but manual verification is essential.
• Operational tooling: Monitoring dashboards, CI/CD pipelines, and alerting rules need updating.
• Canary approach: Running both gateways in parallel behind a load balancer and shifting traffic gradually is the safest migration strategy.

Frequently Asked Questions#

Is Apache APISIX production-ready for enterprise workloads?#

Yes. Apache APISIX is an Apache Software Foundation top-level project used in production by organizations worldwide. The etcd-backed architecture provides high availability without single points of failure when deployed with an etcd cluster.

Can I migrate from Kong to APISIX without downtime?#

A zero-downtime migration is achievable using a canary deployment approach: run both gateways in parallel behind a load balancer, gradually shifting traffic from Kong to APISIX as you validate route-by-route equivalence. APISIX supports most Kong plugin equivalents natively, and the Admin API allows automated route provisioning during migration.

How do open-source API gateways compare to cloud-managed options like AWS API Gateway?#

Cloud-managed gateways trade control for convenience. They handle infrastructure operations but impose vendor lock-in, per-request pricing that grows with traffic volume, and limited plugin customization. Open-source gateways like APISIX provide full control over the data plane, support multi-cloud and hybrid deployments, and eliminate per-request platform fees.

Which gateway has the best Kubernetes support?#

All four gateways support Kubernetes, but the depth varies. APISIX and Kong offer dedicated ingress controllers with CRD-based configuration. Envoy integrates through the Kubernetes Gateway API and service mesh deployments. Traefik auto-discovers Kubernetes services natively. The emerging Kubernetes Gateway API standard is supported by all four projects to varying degrees, and is becoming the recommended approach for new deployments.

Related#

• All API gateway comparisons
• What is an API gateway?
• Apache APISIX vs Kong
• Apache APISIX vs Traefik
• Get started with Apache APISIX