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APIs · head to head

Method Financial vs Tuum

Method Financial logo

Method Financial

APIs

Consumer liability data and payment API covering credit cards, loans and mortgages without account credentials

From
On request
Rated
-
Full reviewWebsite
Tuum logo

Tuum

APIs

Modular core banking platform from Estonia, formerly branded Modularbank

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Method Financial institution coverage is uneven once you move beyond major card issuers, so a lender focused on auto or student loan servicers should test its own portfolio mix rather than trust the headline institution count.; Tuum it is a smaller, younger company than Mambu, so it has fewer live reference deployments and a shorter track record to evaluate risk against.
  • They diverge on capability: Method Financial covers Identity-based account resolution, Tuum covers Modular product structure.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Method Financial and Tuum actually diverge.

Attributes where Method Financial and Tuum differ
AttributeMethod FinancialTuum
PlatformsWebWeb, API

Identical on both: starting price (On request), pricing model (quote), 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 Method Financial

  • Identity-based account resolution
  • Liability data
  • Payoff quotes
  • Direct card payoff
  • Loan payments
  • Method Sync
  • Wide institution reach
  • Consent management

Only in Tuum

  • Modular product structure
  • Low-code integration middleware
  • Cloud-agnostic deployment
  • Multi-currency real-time accounts
  • Cards and lending modules
  • Faster migration timeline

What people use each for

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

Method Financial

  • A debt consolidation lender that needs every card balance and payoff quote for an applicant without asking them to log into each issuernot Tuum
  • A credit card refinancing product that must send funds directly to the cards being paid off rather than to the consumernot Tuum
  • A personal finance application that wants an accurate debt picture including auto and student loans that deposit-account aggregation does not shownot Tuum
  • A credit union offering balance transfer where the application drop-off from credentialed linking is the main constraint on volumenot Tuum

Tuum

  • A bank wanting to migrate specific banking products to the cloud within months rather than replacing its entire core at oncenot Method Financial
  • A fintech in the DACH region or Middle East wanting a European core banking vendor with regional expansion focusnot Method Financial
  • An institution wanting low-code middleware to connect new modules to an existing legacy core rather than a full rebuildnot Method Financial
  • A company researching "Modularbank" that needs to confirm it is the same company now branded Tuumnot Method Financial

Where each one falls short

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

Method Financial

  • Institution coverage is uneven once you move beyond major card issuers, so a lender focused on auto or student loan servicers should test its own portfolio mix rather than trust the headline institution count.
  • It reads liabilities, not cash flow, so a lender that also needs income and affordability evidence is running a second aggregator alongside it and paying twice for consumer connectivity.
  • Payoff quote accuracy and freshness are commercially load bearing, because a consolidation loan funded against a stale figure leaves a residual balance and a customer complaint, and the contractual position on that risk needs to be explicit.
  • Pricing is unpublished and split across data and payment events, which makes unit economics hard to model before volume and easy to misjudge in a product where every application triggers multiple calls.
  • Identity-based access without credentials depends on consumer consent capture being defensible, and any shift in US regulatory interpretation of permissioned data access lands directly on this model rather than on the edges of it.

Tuum

  • It is a smaller, younger company than Mambu, so it has fewer live reference deployments and a shorter track record to evaluate risk against.
  • The 2022-era rebrand from Modularbank to Tuum means older funding records, case studies and press coverage appear under a different name, complicating due diligence for anyone unaware of the change.
  • Pricing is entirely unpublished, requiring a sales conversation to budget against competing composable core vendors.
  • Its geographic expansion into DACH and the Middle East is comparatively recent, so support depth and local regulatory expertise in those markets are less proven than in its home Baltic and Nordic base.
  • As with any core banking platform, choosing Tuum is a multi-year infrastructure commitment; switching cores after implementation is a major undertaking regardless of how modular the initial adoption was.

Pricing, plan by plan

Method Financial

On request
  • Method API$undefined/year
    • Quoted by volume and product mix across data retrieval and payments
    • Separate pricing for liability data, payoff quotes and payment execution
    • Sandbox access available for development

Tuum

On request
  • Tuum$undefined/year
    • Subscription and module-based pricing, not published
    • Custom quote required via sales

Which should you pick?

Choose Method Financial if

  • You need identity-based account resolution.
  • You also want liability data.
Method Financial review

Choose Tuum if

  • You need modular product structure.
  • You work on Web, API.
  • You also want low-code integration middleware.
Tuum review

Questions people ask

Is Method Financial or Tuum better?
Neither clearly leads. Method Financial starts at On request and Tuum at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Method Financial or Tuum?
Method Financial starts at On request and Tuum at On request.
Does Method Financial or Tuum run on more platforms?
Method Financial runs on Web. Tuum runs on Web, API.
What is Method Financial best used for?
Method Financial is most often used for a debt consolidation lender that needs every card balance and payoff quote for an applicant without asking them to log into each issuer, a credit card refinancing product that must send funds directly to the cards being paid off rather than to the consumer, a personal finance application that wants an accurate debt picture including auto and student loans that deposit-account aggregation does not show, a credit union offering balance transfer where the application drop-off from credentialed linking is the main constraint on volume. Of those, a debt consolidation lender that needs every card balance and payoff quote for an applicant without asking them to log into each issuer and a credit card refinancing product that must send funds directly to the cards being paid off rather than to the consumer are not what Tuum is typically brought in for.
What can Method Financial do that Tuum cannot?
Method Financial covers Identity-based account resolution, Liability data, Payoff quotes, Direct card payoff. Tuum covers Modular product structure, Low-code integration middleware, Cloud-agnostic deployment, Multi-currency real-time accounts.

Answered from the vendors’ own pages

Method Financial: How is this different from Plaid?

Plaid connects to deposit accounts with credentials and returns transactions. Method resolves liabilities from verified identity without credentials and can pay those accounts directly. Most lenders use both.

Tuum: Is Tuum the same company as Modularbank?

Yes, Modularbank rebranded to Tuum; it is the same company and platform.

Method Financial: Do consumers have to log in to each card issuer?

No. That is the point of the product, and removing that step is what changes conversion in consolidation and refinancing flows.

Tuum: Where is it strongest geographically?

Its base is Estonia and the Nordic and Baltic region, with newer expansion into DACH and the Middle East.

Method Financial: What does it cost?

Not published. It is quoted by volume and split across liability data, payoff quotes and payment execution.

Tuum: Is pricing published?

No, subscription and module pricing require a sales conversation.

Method Financial: Can it actually pay off a credit card?

Yes, funds are sent directly to the identified card accounts, which is what makes balance transfer and consolidation products work without account numbers.

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