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APIs · head to head

Aiia vs Yapily

Aiia logo

Aiia

APIs

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

From
On request
Rated
-
Full reviewWebsite
Yapily logo

Yapily

APIs

Open banking API infrastructure for account data and pay-by-bank payments across Europe

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Yapily has a free tier, so it costs nothing to try first.
  • 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.; Yapily production pricing itself is not published; only the resulting typical merchant transaction cost is publicly known, so the underlying platform fee still requires a sales conversation.
  • They diverge on capability: Aiia covers Bank account data access, Yapily covers Unified open banking API.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Aiia and Yapily actually diverge.

Attributes where Aiia and Yapily differ
AttributeAiiaYapily
Starting priceOn requestFree
Pricing modelquoteFree sandbox, pay-as-you-go production
Free tierNoYes

Identical on both: platforms (Web, API), 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
  • Mastercard Open Finance integration
  • Modern authentication support
  • Multi-country coverage
  • Developer documentation and sandbox

Only in Yapily

  • Unified open banking API
  • Account information access
  • Free sandbox
  • Multi-country bank coverage
  • Webhooks and reconciliation tooling

Both cover

  • Payment initiation

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

Yapily

  • A merchant wanting a lower-cost payment method alongside card acceptancenot Aiia
  • A lending or budgeting product needing bank account data for affordability checksnot Aiia
  • A business wanting one API instead of separate integrations to each bank's own open banking standardnot Aiia
  • A company prototyping open banking features for free in sandbox before committing budgetnot 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.

Yapily

  • Production pricing itself is not published; only the resulting typical merchant transaction cost is publicly known, so the underlying platform fee still requires a sales conversation.
  • Consumer adoption of pay-by-bank still lags card payments, so merchants offering it as a checkout option typically see it used as a secondary rather than primary payment method.
  • Coverage depends on the banks in each country maintaining reliable open banking APIs, and inconsistent bank-side reliability across markets is a known category-wide weakness, not unique to Yapily but not solved by it either.
  • As infrastructure for both account data and payments, a company only needing one of those two capabilities is still evaluating a broader platform than it may need.
  • Regulatory dependence on PSD2 and UK open banking rules means the underlying legal framework, not just Yapily's product, could shift and affect what is possible on the platform.

Pricing, plan by plan

Aiia

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

Yapily

Free
  • SandboxFree
    • Free testing environment
    • UK and European bank connections for development
  • Production$undefined/month
    • Pay-as-you-go pricing, exact rates not published
    • Typical pay-by-bank cost of 0.1 to 0.5% or a flat 5 to 30 pence per transaction

Which should you pick?

Choose Aiia if

  • You need bank account data access.
  • You work on Web, API.
  • You also want mastercard open finance integration.
Aiia review

Choose Yapily if

  • You need unified open banking api.
  • You want to start without paying.
  • You work on Web, API.
  • You also want account information access.
Yapily review

Questions people ask

Is Aiia or Yapily better?
Neither clearly leads. Aiia starts at On request and Yapily at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aiia or Yapily?
Yapily has a free tier; the other does not. Paid plans start at On request for Aiia and Free for Yapily.
Does Aiia or Yapily run on more platforms?
Both run on Web, API, so platform support will not decide this one for you.
Can I use Yapily for free?
Yes. Yapily has a free tier, so you can try it without paying. Aiia starts at On request.
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 Yapily is typically brought in for.
What can Aiia do that Yapily cannot?
Aiia covers Bank account data access, Mastercard Open Finance integration, Modern authentication support, Multi-country coverage. Yapily covers Unified open banking API, Account information access, Free sandbox, Multi-country bank coverage. Both handle Payment initiation.

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.

Yapily: Is there a free way to try it?

Yes, sandbox access is free for development and testing.

Aiia: Does the Aiia brand still exist?

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

Yapily: How much cheaper is pay-by-bank than card payments?

Typically 0.1 to 0.5% of transaction value, or a flat 5 to 30 pence, against 1.5 to 3.5% for card scheme fees.

Aiia: Which banks does it cover?

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

Yapily: Is production pricing published?

No, production access is pay-as-you-go but exact rates require a sales conversation.

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