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APIs · head to head

Aiia vs Paw

Aiia logo

Aiia

APIs

Open banking and open finance API platform, now operating as Mastercard Open Banking

From
On request
Rated
-
Full reviewWebsite
Paw logo

Paw

APIs

Full-featured REST client for macOS with powerful scripting and testing

From
$99/one-time
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Aiia it is now part of Mastercard rather than an independent company, so a business specifically wanting to avoid card network dependency in its banking infrastructure no longer gets that separation by choosing Aiia.; Paw no specific pricing amounts published for subscription tiers
  • They diverge on capability: Aiia covers Bank account data access, Paw covers REST Client.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Aiia and Paw actually diverge.

Attributes where Aiia and Paw differ
AttributeAiiaPaw
Starting priceOn request$99/one-time
Pricing modelquotesubscription
PlatformsWeb, APIMacOS
FoundedUnknown2013

Identical on both: free tier (No), 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 Aiia

  • Bank account data access
  • Payment initiation
  • Mastercard Open Finance integration
  • Modern authentication support
  • Multi-country coverage
  • Developer documentation and sandbox

Only in Paw

  • REST Client
  • Scripting
  • Dynamic Values
  • Slack
  • GitHub
  • Custom extensions
  • MacOS support

What people use each for

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

Aiia

  • A lending or credit product needing affordability checks via European bank account datanot Paw
  • A personal finance or accounting product needing transaction history across Nordic and European banksnot Paw
  • A payments product wanting account-to-account payment initiation under open banking regulationnot Paw
  • A business wanting the stability and continued investment of Mastercard ownership behind its banking connectivity providernot Paw

Paw

  • API Developmentnot Aiia
  • API Gatewaynot Aiia
  • API Testingnot Aiia
  • API Documentationnot Aiia
  • Microservicesnot Aiia

Where each one falls short

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

Aiia

  • It is now part of Mastercard rather than an independent company, so a business specifically wanting to avoid card network dependency in its banking infrastructure no longer gets that separation by choosing Aiia.
  • Pricing is not published and requires engaging Mastercard's open finance sales process, which can be a heavier sales motion than dealing with a smaller independent open banking provider.
  • Its strongest bank coverage remains concentrated in the Nordics and Northern Europe, so companies needing dense coverage in Southern or Eastern Europe should verify current bank connectivity before committing.
  • Brand confusion is real: developer documentation, login portals and older case studies still reference "Aiia" while newer Mastercard material refers to "Mastercard Open Banking," and a company researching either name in isolation may miss half the relevant material.
  • As with any open banking platform, reliability still depends on the consistency of the underlying banks' own APIs, which is a systemic industry issue rather than something Aiia specifically controls.

Paw

  • No specific pricing amounts published for subscription tiers
  • Individual and volume licensing requires direct contact
  • Limited details on team subscription pricing

Pricing, plan by plan

Aiia

On request
  • Aiia Enterprise (Mastercard Open Banking)$undefined/year
    • Pricing not published, quote via Mastercard Open Finance sales

Paw

$99/one-time
  • Standard$99/one-time
    • Full REST client
    • Advanced scripting
    • Extensions
  • Annual License$49/yearly
    • All features
    • Updates
    • Priority support

Which should you pick?

Choose Aiia if

  • You need bank account data access.
  • You work on Web, API.
  • You also want payment initiation.
Aiia review

Choose Paw if

  • You need rest client.
  • You work on MacOS.
  • You also want scripting.
Paw review

Questions people ask

Is Aiia or Paw better?
Neither clearly leads. Aiia starts at On request and Paw at $99/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aiia or Paw?
Aiia starts at On request and Paw at $99/one-time.
Does Aiia or Paw run on more platforms?
Aiia runs on Web, API. Paw runs on MacOS.
What is Aiia best used for?
Aiia is most often used for a lending or credit product needing affordability checks via european bank account data, a personal finance or accounting product needing transaction history across nordic and european banks, a payments product wanting account-to-account payment initiation under open banking regulation, a business wanting the stability and continued investment of mastercard ownership behind its banking connectivity provider. Of those, a lending or credit product needing affordability checks via european bank account data and a personal finance or accounting product needing transaction history across nordic and european banks are not what Paw is typically brought in for.
What can Aiia do that Paw cannot?
Aiia covers Bank account data access, Payment initiation, Mastercard Open Finance integration, Modern authentication support. Paw covers REST Client, Scripting, Dynamic Values, Slack.

Answered from the vendors’ own pages

Aiia: Is Aiia still an independent company?

No, it was acquired by Mastercard in 2021 and now operates as part of Mastercard Open Finance Solutions, referenced as Aiia Enterprise.

Paw: How much does RapidAPI for Mac (Paw) cost?

Paw offers a free tier for personal and professional use. Paid subscription plans are available on monthly and yearly billing, but specific pricing amounts are not disclosed and require direct contact with RapidAPI.

Source
Aiia: Does the Aiia brand still exist?

Yes, in developer documentation and login portals, but the company behind it is Mastercard.

Paw: Is there a free version of Paw?

Yes, RapidAPI for Mac (Paw) is free for both personal and professional use.

Source
Aiia: Which banks does it cover?

Around 3,000 European banks, with strongest coverage in the Nordics and Northern Europe.

Paw: What features are included in the free version of Paw?

The free tier includes HTTP client capabilities for API testing, API documentation, personal sync across devices, and support for Swagger, RAML, and API Blueprint formats.

Source
Paw: What additional features do Paw team subscriptions include?

Team subscription plans include all personal features plus collaborative tools, team project access, synchronized workflows with safe data merges, and real-time notifications and updates.

Source
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