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APIs · head to head

Method Financial vs Treasury Prime

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
Treasury Prime logo

Treasury Prime

APIs

Banking as a service platform sold to sponsor banks rather than to fintechs

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.; Treasury Prime a fintech cannot buy Treasury Prime directly since the 2024 pivot, so the sales process starts with finding a sponsor bank willing to take your programme, which adds months and removes most of your negotiating leverage on fees.
  • They diverge on capability: Method Financial covers Identity-based account resolution, Treasury Prime covers BankOS.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Method Financial and Treasury Prime actually diverge.

Attributes where Method Financial and Treasury Prime differ
AttributeMethod FinancialTreasury Prime
PlatformsWebAPI, Web

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 Treasury Prime

  • BankOS
  • OneKey Banking
  • Deposit accounts
  • Payments
  • Card issuing
  • Bank oversight tooling
  • Ledger and reconciliation
  • Programme onboarding

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 Treasury Prime
  • A credit card refinancing product that must send funds directly to the cards being paid off rather than to the consumernot Treasury Prime
  • A personal finance application that wants an accurate debt picture including auto and student loans that deposit-account aggregation does not shownot Treasury Prime
  • A credit union offering balance transfer where the application drop-off from credentialed linking is the main constraint on volumenot Treasury Prime

Treasury Prime

  • A community or regional bank that wants to run an embedded finance line with examiner-acceptable oversight of its fintech programmesnot Method Financial
  • A fintech that has already chosen its sponsor bank and needs API access to that bank rather than to a middleware layernot Method Financial
  • A company that wants deposits spread across several banks for FDIC coverage beyond a single institution limitnot Method Financial
  • A bank replacing a fragile middleware arrangement with a structure where it holds the customer contract and the oversight obligationnot 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.

Treasury Prime

  • A fintech cannot buy Treasury Prime directly since the 2024 pivot, so the sales process starts with finding a sponsor bank willing to take your programme, which adds months and removes most of your negotiating leverage on fees.
  • Commercial terms including minimum deposit balances, reserve requirements and per transaction pricing are set by the bank rather than the platform, so two fintechs on the same software can face materially different economics with no public benchmark.
  • The company cut roughly half its staff in the 2024 pivot, which reduced the teams that supported fintech customers directly and left fintechs relying on their bank for support rather than on the vendor who wrote the software.
  • Bank risk appetite is now the binding constraint, and after the Synapse failure sponsor banks decline programmes in higher risk categories that a middleware provider would once have onboarded, so some business models simply cannot get placed.
  • If your sponsor bank exits the programme or is told by its regulator to reduce fintech exposure, you are migrating your entire deposit base to another institution, and the software being the same at both ends does not make that a small project.

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

Treasury Prime

On request
  • BankOS$undefined/year
    • Sold to sponsor banks, not directly to fintechs
    • Fintech commercial terms are set by the sponsor bank
    • Minimum deposits, reserves and per transaction fees vary by bank

Which should you pick?

Choose Method Financial if

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

Choose Treasury Prime if

  • You need bankos.
  • You work on API, Web.
  • You also want onekey banking.
Treasury Prime review

Questions people ask

Is Method Financial or Treasury Prime better?
Neither clearly leads. Method Financial starts at On request and Treasury Prime at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Method Financial or Treasury Prime?
Method Financial starts at On request and Treasury Prime at On request.
Does Method Financial or Treasury Prime run on more platforms?
Method Financial runs on Web. Treasury Prime runs on API, Web.
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 Treasury Prime is typically brought in for.
What can Method Financial do that Treasury Prime cannot?
Method Financial covers Identity-based account resolution, Liability data, Payoff quotes, Direct card payoff. Treasury Prime covers BankOS, OneKey Banking, Deposit accounts, Payments.

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.

Treasury Prime: Can a fintech buy Treasury Prime directly?

No. Since the 2024 pivot it sells to banks. A fintech contracts with a sponsor bank running BankOS, and the bank sets the terms.

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.

Treasury Prime: Why did it change model?

Regulatory pressure on the tri-party middleware structure, sharpened by the Synapse failure. Examiners want the bank holding the customer contract and the oversight obligation, which is what bank-direct means.

Method Financial: What does it cost?

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

Treasury Prime: What is OneKey Banking?

A way of spreading deposits across several banks in the network, used for FDIC coverage above a single institution limit and for resilience if one bank exits.

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.

Treasury Prime: Is pricing published?

No, at neither the bank nor the fintech level. Fintech economics are set by the sponsor bank, so expect wide variation.

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