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APIs · head to head

Formance vs Paw

Formance logo

Formance

APIs

Open source double-entry ledger and payment orchestration for money-moving software

From
Free
Rated
-
Full reviewWebsite
Paw logo

Paw

APIs

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

From
$99/one-time
Rated
-
Full reviewWebsite

The short version

  • Only Formance has a free tier, so it costs nothing to try first.
  • Each has a real cost: Formance formance holds no money and provides no regulatory cover, so it must be paired with a payments provider or bank, and buyers occasionally mistake a ledger for a treasury system and discover the gap late.; Paw no specific pricing amounts published for subscription tiers
  • They diverge on capability: Formance covers Double-entry ledger, Paw covers REST Client.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Formance and Paw actually diverge.

Attributes where Formance and Paw differ
AttributeFormancePaw
Starting priceFree$99/one-time
Pricing modelOpen source, no licence feesubscription
Free tierYesNo
PlatformsLinux, Docker, Kubernetes, Web, APIMacOS
FoundedUnknown2013

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 Formance

  • Double-entry ledger
  • Numscript transaction DSL
  • Multi-currency
  • Payments connectivity
  • Reconciliation
  • Self-hosted deployment
  • Cloud offering
  • API and SDKs

Only in Paw

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

What people use each for

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

Formance

  • A marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditablenot Paw
  • A fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an auditnot Paw
  • A payments team that wants one normalised model across several PSPs so reconciliation is not written separately for eachnot Paw
  • A company that wants its ledger under a licence it can keep running even if the vendor disappearsnot Paw

Paw

  • API Developmentnot Formance
  • API Gatewaynot Formance
  • API Testingnot Formance
  • API Documentationnot Formance
  • Microservicesnot Formance

Where each one falls short

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

Formance

  • Formance holds no money and provides no regulatory cover, so it must be paired with a payments provider or bank, and buyers occasionally mistake a ledger for a treasury system and discover the gap late.
  • Numscript is a domain-specific language your team must learn, and while it makes complex splits expressible it also means transaction logic sits outside the languages your engineers already debug well.
  • Self-hosting a ledger that must never lose or duplicate a transaction is a serious operational commitment covering backups, upgrades and Postgres tuning, which is real cost the zero licence fee hides.
  • Enterprise pricing is not published, so the difference between the free path and the supported path cannot be evaluated without a sales conversation.
  • The company is much smaller than the incumbent alternatives, and while the MIT licence protects the code it does not protect the roadmap, so features on the hosted side may arrive slowly or change direction.

Paw

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

Pricing, plan by plan

Formance

Free
  • Open SourceFree
    • MIT licensed core ledger
    • Numscript transaction DSL
    • Multi-currency tracking
  • Enterprise$undefined/year
    • Managed or private deployment
    • Payments connectivity and reconciliation
    • Support with response commitments

Paw

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

Which should you pick?

Choose Formance if

  • You need double-entry ledger.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Web, API.
  • You also want numscript transaction dsl.
Formance review

Choose Paw if

  • You need rest client.
  • You work on MacOS.
  • You also want scripting.
Paw review

Questions people ask

Is Formance or Paw better?
Neither clearly leads. Formance starts at Free and Paw at $99/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Formance or Paw?
Formance has a free tier; the other does not. Paid plans start at Free for Formance and $99/one-time for Paw.
Does Formance or Paw run on more platforms?
Formance runs on Linux, Docker, Kubernetes, Web, API. Paw runs on MacOS.
Can I use Formance for free?
Yes. Formance has a free tier, so you can try it without paying. Paw starts at $99/one-time.
What is Formance best used for?
Formance is most often used for a marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditable, a fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an audit, a payments team that wants one normalised model across several psps so reconciliation is not written separately for each, a company that wants its ledger under a licence it can keep running even if the vendor disappears. Of those, a marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditable and a fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an audit are not what Paw is typically brought in for.
What can Formance do that Paw cannot?
Formance covers Double-entry ledger, Numscript transaction DSL, Multi-currency, Payments connectivity. Paw covers REST Client, Scripting, Dynamic Values, Slack.

Answered from the vendors’ own pages

Formance: Is Formance really open source?

Yes. The core ledger is MIT licensed with full source access and no deployment restrictions.

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
Formance: Does Formance move money?

No. It records and orchestrates movements; the actual payments happen at a PSP or bank you connect.

Paw: Is there a free version of Paw?

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

Source
Formance: What does the enterprise version cost?

Not published. It is an annual subscription quoted per customer.

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
Formance: Do I have to use Numscript?

Yes for anything beyond the simplest transfers. It is how multi-party transactions are expressed atomically.

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
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