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APIs · head to head

AWS API Gateway vs MX Technologies

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
MX Technologies logo

MX Technologies

APIs

US financial data aggregation with heavy transaction cleansing and enrichment

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only AWS API Gateway has a free tier, so it costs nothing to try first.
  • 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; MX Technologies coverage is United States focused, so any product with European or other international users runs a second aggregator and reconciles two data models, which removes most of the single vendor argument.
  • They diverge on capability: AWS API Gateway covers REST APIs, MX Technologies covers Account aggregation.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where AWS API Gateway and MX Technologies differ
AttributeAWS API GatewayMX Technologies
Starting priceFreeOn request
Pricing modelusage-basedquote
Free tierYesNo
PlatformsAWS CloudAPI, Web
Founded2006Unknown

Identical on both: 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 MX Technologies

  • Account aggregation
  • Transaction cleansing
  • Categorisation
  • Merchant resolution
  • Account verification
  • Balance and funds checks
  • Data enhancement APIs
  • Consent and connection management

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 MX Technologies
  • REST and HTTP API management with throttling and keysnot MX Technologies
  • WebSocket APIs for real-time clientsnot MX Technologies
  • Private APIs reachable only inside a VPCnot MX Technologies
  • Publishing a developer portal for API consumersnot MX Technologies

MX Technologies

  • A credit union building a personal finance view in its own app that needs its own transaction descriptions made readablenot AWS API Gateway
  • A lender using cash flow underwriting that needs categorised income and expense data rather than raw transaction stringsnot AWS API Gateway
  • A bank wanting account verification and balance checks before initiating ACH debits to reduce returnsnot AWS API Gateway
  • A fintech that already aggregates data elsewhere and licenses only the enrichment layer to clean what it hasnot 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

MX Technologies

  • Coverage is United States focused, so any product with European or other international users runs a second aggregator and reconciles two data models, which removes most of the single vendor argument.
  • Nothing is published on price and contracts are enterprise shaped, so a small fintech cannot estimate cost or start building without a sales process, unlike self-serve competitors.
  • Data enhancement is the differentiator and is licensed separately from aggregation, so the quoted aggregation price is not the price of the product people actually buy it for.
  • Categorisation and merchant resolution are statistical and get business to business and unusual transactions wrong more often than consumer retail, so lending decisions built on categorised data need their own review layer.
  • As the United States moves to regulated API access, connection quality depends on what each institution exposes, and the long tail of small banks and credit unions remains the weakest part of any aggregator including this one.

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

MX Technologies

On request
  • MX Platform$undefined/year
    • Priced by connected users, API calls and modules
    • Data enhancement licensed separately from aggregation
    • Enterprise contracts aimed at financial institutions

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 MX Technologies if

  • You need account aggregation.
  • You work on API, Web.
  • You also want transaction cleansing.
MX Technologies review

Questions people ask

Is AWS API Gateway or MX Technologies better?
Neither clearly leads. AWS API Gateway starts at Free and MX Technologies at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AWS API Gateway or MX Technologies?
AWS API Gateway has a free tier; the other does not. Paid plans start at Free for AWS API Gateway and On request for MX Technologies.
Does AWS API Gateway or MX Technologies run on more platforms?
AWS API Gateway runs on AWS Cloud. MX Technologies runs on API, Web.
Can I use AWS API Gateway for free?
Yes. AWS API Gateway has a free tier, so you can try it without paying. MX Technologies starts at On request.
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 MX Technologies is typically brought in for.
What can AWS API Gateway do that MX Technologies cannot?
AWS API Gateway covers REST APIs, WebSocket APIs, HTTP APIs, Lambda. MX Technologies covers Account aggregation, Transaction cleansing, Categorisation, Merchant resolution.

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
MX Technologies: What does MX do that Plaid does not?

It sells transaction cleansing, categorisation and merchant resolution as a first class product, including on data you already hold, which is why financial institutions rather than startups are its core customers.

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
MX Technologies: Does it cover Europe?

No. MX is United States focused. European coverage requires a different provider such as Tink.

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
MX Technologies: Is pricing published?

No. Contracts are quoted by connected users, call volume and modules, with enhancement licensed separately from aggregation.

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
MX Technologies: Does it use screen scraping?

It uses direct bank APIs where institutions expose them and credential based connections elsewhere. The credential path is being deprecated across the industry, and coverage quality now tracks which banks have real APIs.

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