We compared the top API gateway tools for serverless architectures — AWS API Gateway, Kong Gateway, Azure API Management, Tyk, and Apigee — across managed vs. self-hosted models, integration depth, and pricing. Our picks cover cloud-native and agnostic/open-source options for teams of any size.
If you're building serverless applications, an API gateway isn't optional — it's the front door that decouples your backend from your clients, enforces security, and handles traffic spikes without breaking a sweat.1 The right gateway can mean the difference between a brittle, hard-to-scale architecture and one that just works.
We looked at the five most popular API gateway tools for serverless workloads, focusing on how they handle managed vs. self-hosted deployment, integration depth with their respective cloud ecosystems, and pricing models that actually make sense for serverless billing.
| Rank | Tool | Best For | Managed / Self-Hosted |
|---|---|---|---|
| 1 | AWS API Gateway | AWS-native serverless stacks | Managed (AWS) |
| 2 | Kong Gateway | High-performance hybrid/multi-cloud | Self-hosted or Konnect (managed) |
| 3 | Azure API Management | Azure enterprise serverless | Managed (Azure) |
| 4 | Tyk | Open-source, GraphQL-first backends | Self-hosted or Tyk Cloud |
| 5 | Apigee | Enterprise API lifecycle & monetization | Managed (GCP) |
If you're all-in on AWS, this is the obvious choice. Amazon API Gateway is a fully managed service that integrates natively with AWS Lambda, DynamoDB, and nearly every other AWS service you'd pair with a serverless backend.1 It handles request throttling, API key management, and custom domain names out of the box.
Latency is consistently low because the gateway sits inside AWS's network — requests to Lambda functions behind API Gateway typically add only single-digit milliseconds of overhead.2 You pay per million API calls plus data transfer, which scales naturally with serverless usage patterns.
The trade-off: You're locked into AWS. If you ever need to run the same API across multiple clouds or on-prem, you'll be rebuilding.
Kong is the performance king among self-hosted gateways. Built on top of OpenResty and Lua (with a native Go plugin system in newer versions), it benchmarks exceptionally well for routing throughput and connection handling.2
For serverless teams, Kong shines when you need a single gateway layer that spans AWS Lambda, Azure Functions, and your own containers. Its plugin ecosystem — over 200 plugins for auth, rate limiting, caching, and observability — means you can enforce consistent policies across every backend without rewriting code.
The trade-off: Self-hosting Kong means you own the operational overhead. Kong Konnect (the managed tier) reduces that burden but adds cost.
If your organization runs on Azure — with Active Directory, Azure Functions, and Logic Apps — Azure API Management is the natural fit. It offers deep integration with Azure AD for authentication, strong policy-based governance, and a developer portal for API discovery.2
Its consumption tier is specifically designed for serverless workloads: you pay only for each API call, with no fixed infrastructure costs. This makes it viable for low-traffic APIs that need enterprise-grade security without enterprise-grade bills.
The trade-off: Like AWS API Gateway, it's cloud-locked. The consumption tier also has lower rate limits than the dedicated tiers.
Tyk is the strongest open-source contender in this space. Written in Go, it delivers solid performance with a small memory footprint — a meaningful advantage when you're running it alongside serverless functions in containers or Kubernetes.2
What sets Tyk apart is its first-class GraphQL support. It can validate GraphQL queries, apply depth limiting, and even stitch multiple upstream GraphQL services into a single endpoint. For teams building GraphQL backends on serverless runtimes, this is a genuine differentiator.
The trade-off: The open-source version is limited. Advanced features like analytics, RBAC, and GraphQL federation require the paid Tyk Dashboard or Tyk Cloud.
Apigee (now Google Cloud's API management platform) is built for enterprises that treat APIs as products. It provides an end-to-end lifecycle — design, secure, publish, analyze, and monetize — that goes far beyond simple routing.2
For serverless teams on Google Cloud, Apigee integrates with Cloud Functions and Cloud Run, adding API key validation, quota management, and analytics that help you understand usage patterns and charge back to internal teams or external developers.
The trade-off: Apigee is expensive and heavy. It's overkill for small teams or simple APIs. The learning curve is real.
| Dimension | AWS API Gateway | Kong Gateway | Azure API Mgmt | Tyk | Apigee |
|---|---|---|---|---|---|
| Managed / Self-hosted | Managed | Both | Managed | Both | Managed |
| Cloud lock-in | AWS-only | Agnostic | Azure-only | Agnostic | GCP-leaning |
| Pricing model | Per-million calls | Open-source free / Konnect per-call | Consumption tier per-call | Open-source free / Cloud per-call | Per-node subscription |
| GraphQL support | Basic | Via plugin | Limited | Native | Via plugin |
| Auth integrations | Cognito, IAM, custom | 200+ plugins | Azure AD, custom | JWT, OIDC, custom | OAuth, SAML, custom |
Start with your cloud provider. If you're already on AWS, Lambda + API Gateway is the path of least resistance. Azure Functions + Azure API Management is the same story for Azure shops. Don't fight the platform unless you have a strong reason.
Go agnostic if you need flexibility. Kong and Tyk let you run the same gateway across any cloud or on-prem. That matters if you're building a multi-cloud serverless architecture or expect to migrate providers.
Watch your scale. For small teams and simple APIs, the managed gateways (AWS, Azure, Apigee) eliminate ops overhead. For high-throughput, latency-sensitive workloads, Kong's benchmarked performance advantage is worth the operational cost.2
Disclosure: Some of the links on this page are affiliate links. We only recommend tools we've researched and would use ourselves. You pay nothing extra, and it helps us keep the lights on.
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