Amazon API Gateway vs Prism

Amazon API Gateway9.3Visit Prism8.9Visit

Higher score Amazon API Gateway #1 in Api 1 9.3/10 Paid ✓ 0 of 3 features Visit AWS

vs

Prism #6 in Api 1 8.9/10 Free plan Free plan✓ 0 of 3 features Visit Prism

• Amazon API Gateway fits best

  AWS teams needing a managed API gateway

• Prism fits best

  Teams needing OpenAPI mocks and contract checks

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Side by side

Feature	Amazon API Gateway 9.3/10 Visit ↗	Prism 8.9/10 Visit ↗
At a glance
Editor score	9.3	8.9
Ranking	#1 in Api 1	#6 in Api 1
Best for	AWS teams needing a managed API gateway	Teams needing OpenAPI mocks and contract checks
Pricing model	Paid	Free
Starting price	—	Free plan
Free plan	—	✓ (best)
Free trial	—	—
Deployment	Cloud	Cloud, Self-hosted
Platforms	Web	Web
Support	Docs, Community	Community, Docs
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Amazon API Gateway 0/3 · Prism 0/3
API gateway	Not checked yet	Not checked yet
Rate limiting	Not checked yet	Not checked yet
Developer portal	Not checked yet	Not checked yet
Specs
Deployment options	Not checked yet	Not checked yet
API spec support	Not checked yet	Not checked yet
Free-tier API calls	Not checked yet	Not checked yet
Our review
Pros	Supports HTTP, REST, and WebSocket API types. Offers multiple authentication methods, throttling, and request transformation. Connects with AWS services and public HTTP/HTTPS endpoints.	Generates HTTP mocks from OpenAPI v2, v3.0 and v3.1 documents Validates API requests and responses through a proxy Supports command-line and continuous-integration use
Cons	Usage costs vary with API type, Region, traffic, and related services. Data transfer out and WebSocket connection minutes can add separate charges. Its AWS integrations may be less relevant for teams outside the AWS ecosystem.	Focused on mocking and validation, not broader API lifecycle management Hosted mocks run through a separate Stoplight offering Support is centered on community resources and documentation
Our verdict	Amazon API Gateway is a managed cloud service for creating, publishing, monitoring, and securing APIs. It suits teams that need to expose backend functionality to internal applications, customers, or third-party developers, particularly… Read the review →	Prism is an open-source HTTP mock server and validation proxy from SmartBear Software. It suits frontend and backend developers who need to work against an API before its backend is complete, as well as teams checking contracts during… Read the review →

Strengths and trade-offs

• Amazon API Gateway — where it wins

  • Supports HTTP, REST, and WebSocket API types.
  • Offers multiple authentication methods, throttling, and request transformation.
  • Connects with AWS services and public HTTP/HTTPS endpoints.

  Where it doesn't

  • Usage costs vary with API type, Region, traffic, and related services.
  • Data transfer out and WebSocket connection minutes can add separate charges.
  • Its AWS integrations may be less relevant for teams outside the AWS ecosystem.

• Prism — where it wins

  • Generates HTTP mocks from OpenAPI v2, v3.0 and v3.1 documents
  • Validates API requests and responses through a proxy
  • Supports command-line and continuous-integration use

  Where it doesn't

  • Focused on mocking and validation, not broader API lifecycle management
  • Hosted mocks run through a separate Stoplight offering
  • Support is centered on community resources and documentation

• Amazon API Gateway9.3/10 · Paid

  A flexible AWS gateway for HTTP, REST, and WebSocket APIs, billed by usage.

  Visit AWSFull verdict →
• Prism8.9/10 · Free plan

  Prism turns OpenAPI definitions into mock APIs and checks traffic against the contract.

  Visit PrismFull verdict →