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APIs · head to head

Paw vs Treasury Prime

Paw logo

Paw

APIs

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

From
$99/one-time
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: Paw no specific pricing amounts published for subscription tiers; 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: Paw covers REST Client, Treasury Prime covers BankOS.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where Paw and Treasury Prime differ
AttributePawTreasury Prime
Starting price$99/one-timeOn request
Pricing modelsubscriptionquote
PlatformsMacOSAPI, Web
Founded2013Unknown

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 Paw

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

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.

Paw

  • API Developmentnot Treasury Prime
  • API Gatewaynot Treasury Prime
  • API Testingnot Treasury Prime
  • API Documentationnot Treasury Prime
  • Microservicesnot 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 Paw
  • A fintech that has already chosen its sponsor bank and needs API access to that bank rather than to a middleware layernot Paw
  • A company that wants deposits spread across several banks for FDIC coverage beyond a single institution limitnot Paw
  • A bank replacing a fragile middleware arrangement with a structure where it holds the customer contract and the oversight obligationnot Paw

Where each one falls short

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

Paw

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

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

Paw

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

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 Paw if

  • You need rest client.
  • You work on MacOS.
  • You also want scripting.
Paw 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 Paw or Treasury Prime better?
Neither clearly leads. Paw starts at $99/one-time and Treasury Prime at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Paw or Treasury Prime?
Paw starts at $99/one-time and Treasury Prime at On request.
Does Paw or Treasury Prime run on more platforms?
Paw runs on MacOS. Treasury Prime runs on API, Web.
What is Paw best used for?
Paw is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Treasury Prime is typically brought in for.
What can Paw do that Treasury Prime cannot?
Paw covers REST Client, Scripting, Dynamic Values, Slack. Treasury Prime covers BankOS, OneKey Banking, Deposit accounts, Payments.

Answered from the vendors’ own pages

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
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.

Paw: Is there a free version of Paw?

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

Source
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.

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
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.

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
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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