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APIs · head to head

Bruno vs Treasury Prime

Bruno logo

Bruno

APIs

Open-source IDE for API exploration with git-friendly collections

From
Free
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

  • Only Bruno has a free tier, so it costs nothing to try first.
  • Each has a real cost: Bruno native Git integration, the feature that distinguishes it from cloud API clients, is Pro only at $6 per user per month; 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: Bruno covers API Testing, Treasury Prime covers BankOS.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where Bruno and Treasury Prime differ
AttributeBrunoTreasury Prime
Starting priceFreeOn request
Pricing modelfreemiumquote
Free tierYesNo
PlatformsWindows, MacOS, LinuxAPI, Web
Founded2022Unknown

Identical on both: 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 Bruno

  • API Testing
  • Environment management
  • Git-friendly storage
  • GitHub
  • Git repositories
  • Local file system
  • Windows support
  • 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.

Bruno

  • Sending and testing HTTP requests from a local clientnot Treasury Prime
  • Keeping API collections in Git rather than a vendor cloudnot Treasury Prime
  • Offline API development without an accountnot Treasury Prime
  • Importing and syncing OpenAPI specificationsnot 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 Bruno
  • A fintech that has already chosen its sponsor bank and needs API access to that bank rather than to a middleware layernot Bruno
  • A company that wants deposits spread across several banks for FDIC coverage beyond a single institution limitnot Bruno
  • A bank replacing a fragile middleware arrangement with a structure where it holds the customer contract and the oversight obligationnot Bruno

Where each one falls short

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

Bruno

  • Native Git integration, the feature that distinguishes it from cloud API clients, is Pro only at $6 per user per month
  • OpenAPI syncs are capped at 5 a month on the free tier
  • SSO, SCIM and user management require Ultimate at $11 per user per month
  • Private workspaces are a paid feature
  • Advertised prices are annual rates

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

Bruno

Free
  • Open SourceFree
    • Core API Client
    • Limited Git integration
    • 2 Workspaces
  • Pro$6/month
    • Core API Client
    • Native Git integration
    • Unlimited Workspaces
  • Ultimate$11/month
    • Core API Client
    • Full Git integration
    • Unlimited Workspaces

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 Bruno if

  • You need api testing.
  • You want to start without paying.
  • You work on Windows, MacOS, Linux.
  • You also want environment management.
Bruno 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 Bruno or Treasury Prime better?
Neither clearly leads. Bruno starts at Free and Treasury Prime at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bruno or Treasury Prime?
Bruno has a free tier; the other does not. Paid plans start at Free for Bruno and On request for Treasury Prime.
Does Bruno or Treasury Prime run on more platforms?
Bruno runs on Windows, MacOS, Linux. Treasury Prime runs on API, Web.
Can I use Bruno for free?
Yes. Bruno has a free tier, so you can try it without paying. Treasury Prime starts at On request.
What is Bruno best used for?
Bruno is most often used for sending and testing http requests from a local client, keeping api collections in git rather than a vendor cloud, offline api development without an account, importing and syncing openapi specifications. Of those, sending and testing http requests from a local client and keeping api collections in git rather than a vendor cloud are not what Treasury Prime is typically brought in for.
What can Bruno do that Treasury Prime cannot?
Bruno covers API Testing, Environment management, Git-friendly storage, GitHub. Treasury Prime covers BankOS, OneKey Banking, Deposit accounts, Payments.

Answered from the vendors’ own pages

Bruno: What is included in Bruno's free tier?

The Open Source plan includes the core API client, limited Git integration, and up to 2 workspaces at no cost. A 14-day free trial of the Ultimate plan is also available without requiring a credit card.

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.

Bruno: What is the difference between Bruno Pro and Ultimate plans?

Pro ($6/month) includes native Git integration and unlimited workspaces. Ultimate ($11/month) adds SSO/SCIM support, audit logs, 24-hour support (vs. 48-hour), and an account manager. Ultimate supports unlimited OpenAPI syncs while Pro is limited to 5 per month.

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.

Bruno: How much does Bruno Pro save compared to other API tools?

The vendor claims Ultimate saves teams more than 70% versus Postman, though this comparison is promotional rather than a specific cost metric.

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.

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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