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APIs · head to head

Spring Cloud Gateway vs SST

Spring Cloud Gateway logo

Spring Cloud Gateway

APIs

API gateway built on Project Reactor for building microservices

From
Free
Rated
-
Full reviewWebsite
SST logo

SST

Cloud

Build full-stack apps on your own infrastructure

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Spring Cloud Gateway released under the Apache 2.0 license, free and open source with no commercial tier; SST primarily optimized for AWS with Cloudflare support
  • They diverge on capability: Spring Cloud Gateway covers Routing, SST covers Single config file.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Spring Cloud Gateway and SST actually diverge.

Attributes where Spring Cloud Gateway and SST differ
AttributeSpring Cloud GatewaySST
Pricing modelopen-sourceUnknown
PlatformsJava, Spring BootAWS, Cloudflare, Node.js
CategoryAPIsCloud
Founded1998Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Spring Cloud Gateway

  • Routing
  • Path Rewriting
  • Circuit Breaker
  • Spring Boot
  • Spring Security
  • Spring Cloud
  • Java support
  • Spring Boot support

Only in SST

  • Single config file
  • Resource linking
  • Local development
  • Multi-cloud support
  • Multiple deployment stages
  • VPC tunneling

What people use each for

The jobs each tool is most often brought in to do.

Spring Cloud Gateway

  • API Developmentnot SST
  • API Gatewaynot SST
  • API Testingnot SST
  • API Documentationnot SST
  • Microservicesnot SST

SST

  • Deploying Next.js frontends with serverless backendsnot Spring Cloud Gateway
  • Managing databases and storage alongside application codenot Spring Cloud Gateway
  • Creating staging environments for feature testingnot Spring Cloud Gateway

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Spring Cloud Gateway

  • Released under the Apache 2.0 license, free and open source with no commercial tier

SST

  • Primarily optimized for AWS with Cloudflare support
  • Learning curve for developers unfamiliar with infrastructure concepts
  • Limited documentation for some advanced use cases

Pricing, plan by plan

Spring Cloud Gateway

Free
  • Open SourceFree
    • Core Spring Cloud Gateway
    • Community support

SST

Free

No published plan breakdown. See the SST review.

Which should you pick?

Choose Spring Cloud Gateway if

  • You need routing.
  • You want to start without paying.
  • You work on Java, Spring Boot.
  • You also want path rewriting.
Spring Cloud Gateway review

Choose SST if

  • You need single config file.
  • You want to start without paying.
  • You work on AWS, Cloudflare, Node.js.
  • You also want resource linking.
SST review

Questions people ask

Is Spring Cloud Gateway or SST better?
Neither clearly leads. Spring Cloud Gateway starts at Free and SST at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Spring Cloud Gateway or SST?
Spring Cloud Gateway starts at Free and SST at Free.
Does Spring Cloud Gateway or SST run on more platforms?
Spring Cloud Gateway runs on Java, Spring Boot. SST runs on AWS, Cloudflare, Node.js.
Can I use Spring Cloud Gateway for free?
Both have a free tier, so you can try either at no cost before committing.
What is Spring Cloud Gateway best used for?
Spring Cloud Gateway is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what SST is typically brought in for.
What can Spring Cloud Gateway do that SST cannot?
Spring Cloud Gateway covers Routing, Path Rewriting, Circuit Breaker, Spring Boot. SST covers Single config file, Resource linking, Local development, Multi-cloud support.

Answered from the vendors’ own pages

Spring Cloud Gateway: Is Spring Cloud Gateway free?

Yes, Spring Cloud Gateway is free and open-source software. It is part of the Spring ecosystem and available through GitHub repositories with open-source dependencies like spring-cloud-starter-gateway-server-webflux and spring-cloud-starter-gateway-server-webmvc.

Source
SST: Is SST free?

Yes, SST is open source and free. You only pay for cloud resources from AWS and other providers.

Source
Spring Cloud Gateway: What enterprise support is available for Spring Cloud Gateway?

Tanzu Spring provides optional enterprise support including Day 0 access to security patches for organizations requiring guaranteed support, but specific pricing is not published on the Spring Cloud Gateway project page.

Source
SST: What cloud providers does SST support?

SST supports over 150 providers through built-in AWS and Cloudflare components, plus Pulumi and Terraform providers.

Source
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