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APIs · head to head

AWS API Gateway vs LiteLLM

AWS API Gateway logo

AWS API Gateway

APIs

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

From
Free
Rated
-
Full reviewWebsite
LiteLLM logo

LiteLLM

APIs

The AI Gateway for platform teams

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 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; LiteLLM enterprise pricing based on annual request capacity and deployment architecture, sized via direct sales
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which AWS API Gateway and LiteLLM actually diverge.

Attributes where AWS API Gateway and LiteLLM differ
AttributeAWS API GatewayLiteLLM
Pricing modelusage-basedopen-source
PlatformsAWS CloudWeb
Founded2006Unknown

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

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 AWS API Gateway

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

Only in LiteLLM

Nothing recorded that AWS API Gateway does not also cover.

What people use each for

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

AWS API Gateway

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

LiteLLM

  • Accessing 140+ LLM providers through single APInot AWS API Gateway
  • Implementing cost-based routing for advanced AI tasksnot AWS API Gateway
  • Deploying new LLM models usually within a daynot AWS API Gateway
  • Switching backend models with config changes onlynot AWS API Gateway
  • Maintaining consistent access across 100+ endpointsnot AWS API Gateway

Where each one falls short

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

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

LiteLLM

  • Enterprise pricing based on annual request capacity and deployment architecture, sized via direct sales
  • Not per-token based pricing for Enterprise tier

Pricing, plan by plan

AWS API Gateway

Free
  • Free Tier (12 months)Free
    • 1M REST API calls per month
    • 1M HTTP API calls per month
    • 1M WebSocket messages plus 750K connection minutes per month
  • HTTP APIs$1/per million requests (first 300M)
    • First 300M: $1.00 per million
    • Next 132M: $0.90 per million
    • Data transfer varies by volume
  • REST APIs$3.5/per million API calls
    • Edge Optimized and Regional: $3.50 per million (first tier)
    • Higher volumes: $2.80 then $2.38 per million
    • Data transfer: $0.09 per GB
  • WebSocket APIs$1/per million messages
    • Messages: $1.00 per million
    • Connection minutes: $0.25 per million minutes

LiteLLM

Free
  • Open SourceFree
    • 100+ providers
    • One OpenAI API
    • Virtual keys
  • Enterprise$null/mo
    • All Open Source features
    • SSO + SCIM
    • OIDC/JWT authentication

Which should you pick?

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

Choose LiteLLM if

  • You want to start without paying.
LiteLLM review

Questions people ask

Is AWS API Gateway or LiteLLM better?
Neither clearly leads. AWS API Gateway starts at Free and LiteLLM at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AWS API Gateway or LiteLLM?
AWS API Gateway starts at Free and LiteLLM at Free.
Does AWS API Gateway or LiteLLM run on more platforms?
AWS API Gateway runs on AWS Cloud. LiteLLM runs on Web.
Can I use AWS API Gateway for free?
Both have a free tier, so you can try either at no cost before committing.
What is AWS API Gateway best used for?
AWS API Gateway is most often used for fronting lambda functions with an http endpoint, rest and http api management with throttling and keys, websocket apis for real-time clients, private apis reachable only inside a vpc. Of those, fronting lambda functions with an http endpoint and rest and http api management with throttling and keys are not what LiteLLM is typically brought in for.
What can AWS API Gateway do that LiteLLM cannot?
AWS API Gateway covers REST APIs, WebSocket APIs, HTTP APIs, Lambda.

Answered from the vendors’ own pages

AWS API Gateway: How much does AWS API Gateway cost?

AWS API Gateway pricing varies by API type. HTTP APIs cost $1.00 per million requests for the first 300M monthly, then $0.90 per million. REST APIs cost $3.50 per million, and WebSocket APIs cost $1.00 per million messages plus $0.25 per million connection minutes. Data transfer charges ($0.09 per GB) apply separately.

Source
LiteLLM: Is LiteLLM free to use?

Yes, LiteLLM's open-source version is free forever and requires no credit card. Self-host in minutes with support for 100+ LLM providers.

Source
AWS API Gateway: Is AWS API Gateway free?

New AWS customers receive 12 months of free tier access including 1 million REST API calls, 1 million HTTP API calls, and 1 million WebSocket messages plus 750,000 connection minutes per month. Starting July 15, 2025, new customers receive up to $200 in AWS Free Tier credits.

Source
LiteLLM: What does LiteLLM's Enterprise plan cost?

Enterprise pricing is custom and annual, sized based on your annual gateway request capacity, deployment architecture, and support needs. Not charged per token.

Source
AWS API Gateway: What is the price difference between HTTP and REST APIs?

HTTP APIs are significantly cheaper at $1.00 per million requests compared to REST APIs at $3.50 per million (first tier). REST API pricing decreases to $2.80 and $2.38 per million for higher volumes, while HTTP API pricing drops to $0.90 per million after 300M monthly requests.

Source
LiteLLM: Is there a free trial for Enterprise?

Yes, a 30-day Enterprise trial key is available via email with no credit card required.

Source
AWS API Gateway: How much does an API Gateway Portal cost?

API Gateway Portals require a base fee of $125 per month (includes 10 PortalProducts with 40 endpoints each) plus $12.50 per month for each additional PortalProduct beyond the included 10.

Source
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