Every API your company exposes needs something standing in front of it: an API gateway that handles authentication, rate limiting, routing, and analytics so individual services don’t have to reinvent that logic. The three names that come up most often in 2026 are Kong, Amazon’s native AWS API Gateway, and Google’s Apigee — and they represent three fundamentally different approaches to the problem, and three very different pricing philosophies. This review compares them on real, vendor-published numbers.
At a Glance
| Tool | Model | Starting Price | Best For |
|---|---|---|---|
| Kong | Self-hosted OSS or managed Konnect SaaS | Free (Gateway OSS) / Konnect Plus from $25/mo + usage | Teams wanting open-source flexibility or a hybrid/multi-cloud control plane |
| AWS API Gateway | Pure pay-per-use, no subscription | From $1.00 per million HTTP API calls | Teams already built on AWS wanting zero infrastructure to manage |
| Google Apigee | Pay-as-you-go (public) or annual subscription (quote-only) | From $365/month/region (Base, pay-as-you-go) | Large enterprises needing full API lifecycle management, monetization, and analytics |
Short Verdict
If you’re already deep in AWS and just need routing, auth, and throttling in front of Lambda or containerized services, AWS API Gateway is the path of least resistance and the cheapest per-call option. If you want an open-source gateway you can run anywhere — on-prem, multi-cloud, Kubernetes — Kong Gateway’s free Apache-2.0-licensed core is hard to beat, with Konnect available if you want a managed control plane on top. Apigee is the heaviest and most expensive of the three, but it’s also the only one built for full API productization: developer portals, monetization, and enterprise-grade analytics baked in.
What Each One Is
Kong started as an open-source API gateway built on NGINX and Lua, and Kong Gateway remains available under the Apache License 2.0 — free to download, self-host, and modify. Kong Inc. monetizes through Konnect, a SaaS control plane that adds a hosted dashboard, analytics, developer portals, AI gateway features for proxying LLM traffic, and optional fully-managed “Dedicated Cloud Gateways” so you don’t have to run data planes yourself.
AWS API Gateway is a fully managed service with no software to install or servers to patch. You define REST APIs, HTTP APIs (a newer, cheaper, lower-latency option), or WebSocket APIs, and AWS handles scaling, throttling, and integration with Lambda, EC2, or any HTTP backend. There’s no subscription — you pay strictly for what you use.
Apigee (part of Google Cloud) is an enterprise API management platform rather than a lightweight gateway. It bundles traffic management with API monetization, a developer portal for external API consumers, and deep analytics, aimed at organizations that treat their APIs as products.
Pricing Breakdown
| Tool | Tier | Price | Notes |
|---|---|---|---|
| Kong | Gateway OSS | Free | Apache 2.0 license, fully self-hosted |
| Konnect Plus | From $25/mo + usage | 1M requests/mo included; +$200 per extra 1M; Dedicated Cloud Gateway +$500/mo per region | |
| Konnect Enterprise | Custom (annual contract) | Volume discounts, SSO, audit logging, CSM, 24×7 support tiers | |
| AWS API Gateway | HTTP API | $1.00 per 1M calls (first 300M), $0.90/1M beyond | Cheapest option, newer feature set |
| REST API | $3.50 per 1M calls (first 333M), down to $2.38/1M at scale | Older, more feature-rich API type | |
| WebSocket API | $1.00 per 1M messages + $0.25 per 1M connection-minutes | Plus $0.09/GB data transfer out (public APIs only) | |
| Apigee | Pay-as-you-go | From $365/mo/region (Base) + $20 per 1M standard proxy calls | Comprehensive tier is $3,431/mo/region with autoscaling and 99.9%+ SLA |
| Subscription (Standard/Enterprise/Enterprise Plus) | Custom quote only | Predictable pricing, monetization and hybrid entitlements included |
AWS gives new accounts a 12-month free tier covering 1 million REST calls, 1 million HTTP calls, and 1 million WebSocket messages per month. Kong offers a 30-day Konnect trial with no card required. Apigee offers a 60-day free sandbox evaluation rather than an ongoing free tier.
Pros
- Kong: Genuinely free self-hosted core; plugin ecosystem; works identically on-prem, in Kubernetes, or across multiple clouds; AI-gateway features for routing LLM traffic.
- AWS API Gateway: Zero infrastructure to manage; tightly integrated with Lambda, IAM, and the rest of AWS; cheapest raw per-call pricing of the three, especially on HTTP APIs.
- Apigee: Full API lifecycle management including monetization and developer portals; strong analytics and security add-ons; scales to tens of billions of calls under enterprise subscriptions.
Cons
- Kong: The free tier is the gateway only — Konnect’s managed convenience costs extra, and advanced features (SSO, audit logging, event gateways) are Enterprise-only with custom pricing.
- AWS API Gateway: Costs can balloon with caching, response streaming, and PrivateLink add-ons; it’s AWS-only, so it doesn’t help in multi-cloud setups.
- Apigee: By far the most expensive entry point ($365+/month per region before a single API call); its richer subscription tiers are quote-only, so true enterprise cost isn’t public.
Who It’s a Good Fit For
Choose Kong if you want control over your own infrastructure, need multi-cloud or on-prem flexibility, or are already comfortable operating open-source infra. Choose AWS API Gateway if your backend already lives on AWS and you want the simplest possible pay-per-use gateway with no operational overhead. Choose Apigee if you’re exposing APIs externally as a product — to partners, customers, or a developer ecosystem — and need monetization and lifecycle tooling, not just traffic routing.
Who Should Look Elsewhere
Small teams with simple internal APIs and tight budgets will find Apigee’s $365+/month-per-region floor hard to justify. Teams that need to run outside AWS shouldn’t rely solely on AWS API Gateway. And teams that want a fully managed, zero-ops gateway without learning Kubernetes or managing self-hosted infrastructure may find Kong Gateway OSS more operational work than they bargained for — Konnect’s Dedicated Cloud Gateway tier exists specifically to solve that, at a price.
Bottom Line
These three aren’t quite interchangeable: AWS API Gateway is the cheapest and simplest if you live inside AWS, Kong is the most flexible and the only genuinely free option if you self-host, and Apigee is the most complete but the most expensive by a wide margin. The right choice depends less on raw price and more on where your infrastructure already lives and whether you’re routing internal traffic or productizing APIs for external partners.
FAQ
Is Kong Gateway really free?
Yes — Kong Gateway’s open-source core is released under the Apache License 2.0 and is free to self-host. Kong Inc. charges for Konnect, its managed SaaS control plane, and for Enterprise features like SSO and audit logging.
Which is cheapest for a low-traffic API?
For a small, low-volume API on AWS, AWS API Gateway’s HTTP API type is typically the cheapest, especially within the 12-month free tier covering the first 1 million calls per month. Apigee’s $365+/month regional floor makes it the most expensive for low traffic.
Can I use Apigee’s pricing calculator to get exact enterprise costs?
Not fully. Apigee publishes pay-as-you-go environment and per-call rates, but its Standard, Enterprise, and Enterprise Plus subscription tiers — which include monetization and higher call volumes — are quote-only through Google Cloud sales.
Sources
- Kong Konnect Pricing
- Kong Gateway GitHub repository (license)
- AWS API Gateway Pricing
- Google Apigee Pricing
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