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APIs · head to head

i2c vs Treasury Prime

i2c logo

i2c

APIs

Configurable card issuing and banking processing platform for banks and programme managers

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: i2c developer experience lags API-native competitors, and teams expecting Stripe-grade documentation and sandboxes find an enterprise integration project instead.; 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: i2c covers Configurable product engine, Treasury Prime covers BankOS.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which i2c and Treasury Prime actually diverge.

Attributes where i2c and Treasury Prime differ
Attributei2cTreasury Prime
PlatformsWeb, REST APIAPI, 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 i2c

  • Configurable product engine
  • Credit and instalments
  • Multi-currency
  • Fraud and risk tooling
  • Digital banking front ends
  • Global scheme connectivity

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.

i2c

  • A bank wanting credit, debit and prepaid portfolios on one processor rather than threenot Treasury Prime
  • An issuer in a market where local scheme and currency support rules out US-centric processorsnot Treasury Prime
  • A programme manager launching instalment products without building a lending corenot Treasury Prime
  • A credit union replacing an ageing processor without writing custom code for product rulesnot 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 i2c
  • A fintech that has already chosen its sponsor bank and needs API access to that bank rather than to a middleware layernot i2c
  • A company that wants deposits spread across several banks for FDIC coverage beyond a single institution limitnot i2c
  • A bank replacing a fragile middleware arrangement with a structure where it holds the customer contract and the oversight obligationnot i2c

Where each one falls short

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

i2c

  • Developer experience lags API-native competitors, and teams expecting Stripe-grade documentation and sandboxes find an enterprise integration project instead.
  • Implementations lean on i2c or partner professional services, so timelines and costs are set by a services queue rather than by your own engineering speed.
  • Pricing is per active card and per transaction with monthly minimums, none of it published, so comparing bids requires modelling your own portfolio carefully.
  • Configuration flexibility means product behaviour lives in platform settings rather than in your repository, which complicates version control, testing and audit trails.
  • As a private company with a broad global footprint, regional support depth is uneven, and a programme in a smaller market may get thinner service than a flagship account.

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

i2c

On request
  • i2c processing platform$undefined/year
    • Per-active-card and per-transaction processing fees
    • Minimum monthly commitments by programme
    • Implementation and configuration professional services

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 i2c if

  • You need configurable product engine.
  • You work on Web, REST API.
  • You also want credit and instalments.
i2c 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 i2c or Treasury Prime better?
Neither clearly leads. i2c 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, i2c or Treasury Prime?
i2c starts at On request and Treasury Prime at On request.
Does i2c or Treasury Prime run on more platforms?
i2c runs on Web, REST API. Treasury Prime runs on API, Web.
What is i2c best used for?
i2c is most often used for a bank wanting credit, debit and prepaid portfolios on one processor rather than three, an issuer in a market where local scheme and currency support rules out us-centric processors, a programme manager launching instalment products without building a lending core, a credit union replacing an ageing processor without writing custom code for product rules. Of those, a bank wanting credit, debit and prepaid portfolios on one processor rather than three and an issuer in a market where local scheme and currency support rules out us-centric processors are not what Treasury Prime is typically brought in for.
What can i2c do that Treasury Prime cannot?
i2c covers Configurable product engine, Credit and instalments, Multi-currency, Fraud and risk tooling. Treasury Prime covers BankOS, OneKey Banking, Deposit accounts, Payments.

Answered from the vendors’ own pages

i2c: Does i2c issue the cards itself?

No. It processes; issuance sits with a bank or licensed issuer, and in most markets you need that relationship separately.

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.

i2c: Can it handle revolving credit?

Yes. Credit, instalments and buy-now-pay-later sit on the same platform as debit and prepaid, which is unusual among modern processors.

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.

i2c: Is it self-serve?

No. Expect a configuration-led implementation with professional services rather than signing up and calling an API.

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.

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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