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Software · head to head

Swagger/OpenAPI vs AWS API Gateway

S

Swagger/OpenAPI

Software

API specification and documentation framework using OpenAPI standard

From
Free
Rated
-
Full reviewWebsite
AWS API Gateway logo

AWS API Gateway

Software

Fully managed API gateway service for creating and managing APIs at scale

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Swagger/OpenAPI the OpenAPI Specification itself is licensed under Apache License 2.0 and free to use; SwaggerHub is a separate paid tool built on top of it; AWS API Gateway rEST APIs cost $3.50 per million calls against $1.00 for HTTP APIs, so the older and more featureful type is three and a half times dearer
  • They diverge on capability: Swagger/OpenAPI covers OpenAPI Specification, AWS API Gateway covers REST APIs.

Where they differ

Only the attributes on which Swagger/OpenAPI and AWS API Gateway actually diverge.

Attributes where Swagger/OpenAPI and AWS API Gateway differ
AttributeSwagger/OpenAPIAWS API Gateway
Pricing modelfreemiumusage-based
PlatformsWeb, CLI, DesktopAWS Cloud
Founded20012006

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

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 Swagger/OpenAPI

  • OpenAPI Specification
  • Interactive Documentation
  • Code Generation
  • GitHub
  • GitLab
  • Jenkins
  • IDE plugins
  • Web support

Only in AWS API Gateway

  • REST APIs
  • WebSocket APIs
  • HTTP APIs
  • Lambda
  • EC2
  • DynamoDB
  • CloudWatch
  • IAM

What people use each for

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

Swagger/OpenAPI

  • API Developmentnot AWS API Gateway
  • API Gatewaynot AWS API Gateway
  • API Testingnot AWS API Gateway
  • API Documentationnot AWS API Gateway
  • Microservicesnot AWS API Gateway

AWS API Gateway

  • Fronting Lambda functions with an HTTP endpointnot Swagger/OpenAPI
  • REST and HTTP API management with throttling and keysnot Swagger/OpenAPI
  • WebSocket APIs for real-time clientsnot Swagger/OpenAPI
  • Private APIs reachable only inside a VPCnot Swagger/OpenAPI
  • Publishing a developer portal for API consumersnot Swagger/OpenAPI

Where each one falls short

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

Swagger/OpenAPI

  • The OpenAPI Specification itself is licensed under Apache License 2.0 and free to use; SwaggerHub is a separate paid tool built on top of it

AWS API Gateway

  • REST APIs cost $3.50 per million calls against $1.00 for HTTP APIs, so the older and more featureful type is three and a half times dearer
  • Data transfer out is charged at $0.09 per GB on top of request pricing
  • WebSocket APIs bill connection minutes as well as messages, at $0.25 per million minutes
  • Private APIs avoid data transfer charges but incur AWS PrivateLink costs instead
  • The developer portal is $125 a month, with additional portal products at $12.50 each
  • The free tier lasts 12 months rather than being ongoing

Pricing, plan by plan

Swagger/OpenAPI

Free
  • Open SourceFree
    • OpenAPI specification
    • Community tools
  • SwaggerHub FreeFree
    • Cloud editor
    • API mocking
    • API testing
  • SwaggerHub Pro$75/monthly
    • Team collaboration
    • Advanced mocking
    • Analytics

AWS API Gateway

Free
  • Free TierFree
    • 1M requests per month
    • Basic API management
  • Pay-as-you-go$3.5/per 1M requests
    • Unlimited requests
    • HTTP APIs
    • REST APIs

Which should you pick?

Choose Swagger/OpenAPI if

  • You need openapi specification.
  • You want to start without paying.
  • You work on Web, CLI, Desktop.
  • You also want interactive documentation.
Swagger/OpenAPI review

Choose AWS API Gateway if

  • You need rest apis.
  • You want to start without paying.
  • You work on AWS Cloud.
  • You also want websocket apis.
AWS API Gateway review

Questions people ask

Is Swagger/OpenAPI or AWS API Gateway better?
Neither clearly leads. Swagger/OpenAPI starts at Free and AWS API Gateway at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Swagger/OpenAPI or AWS API Gateway?
Swagger/OpenAPI starts at Free and AWS API Gateway at Free.
Does Swagger/OpenAPI or AWS API Gateway run on more platforms?
Swagger/OpenAPI runs on Web, CLI, Desktop. AWS API Gateway runs on AWS Cloud.
Can I use Swagger/OpenAPI for free?
Both have a free tier, so you can try either at no cost before committing.
What is Swagger/OpenAPI best used for?
Swagger/OpenAPI is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what AWS API Gateway is typically brought in for.
What can Swagger/OpenAPI do that AWS API Gateway cannot?
Swagger/OpenAPI covers OpenAPI Specification, Interactive Documentation, Code Generation, GitHub. AWS API Gateway covers REST APIs, WebSocket APIs, HTTP APIs, Lambda.
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