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APIs · head to head

Formance vs HashiCorp Vault

Formance logo

Formance

APIs

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

From
Free
Rated
-
Full reviewWebsite
HashiCorp Vault logo

HashiCorp Vault

Cybersecurity

Manage secrets and protect sensitive data

From
Free
Rated
-
Full reviewWebsite

The short version

  • 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.; HashiCorp Vault policies are written in HCL with no graphical user interface for policy management or editing
  • They diverge on capability: Formance covers Double-entry ledger, HashiCorp Vault covers Secret storage.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Formance and HashiCorp Vault actually diverge.

Attributes where Formance and HashiCorp Vault differ
AttributeFormanceHashiCorp Vault
Pricing modelOpen source, no licence feeopen-source
PlatformsLinux, Docker, Kubernetes, Web, APILinux, Windows, Mac, Api
CategoryAPIsCybersecurity
FoundedUnknown2014

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 HashiCorp Vault

  • Secret storage
  • Dynamic secrets
  • Encryption as a service
  • Identity-based access
  • Audit logging
  • Leasing and renewal
  • Secret engines
  • Auth methods

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 HashiCorp Vault
  • A fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an auditnot HashiCorp Vault
  • A payments team that wants one normalised model across several PSPs so reconciliation is not written separately for eachnot HashiCorp Vault
  • A company that wants its ledger under a licence it can keep running even if the vendor disappearsnot HashiCorp Vault

HashiCorp Vault

  • Secrets managementnot Formance
  • Database credentialsnot Formance
  • API keysnot Formance
  • SSH accessnot Formance
  • PKI and certificatesnot 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.

HashiCorp Vault

  • Policies are written in HCL with no graphical user interface for policy management or editing
  • Unsealing requires managing multiple key shares and coordinating a quorum of operators
  • Community Edition lacks enterprise features like namespaces and disaster recovery replication
  • Requires additional monitoring solutions for alerting and observability

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

HashiCorp Vault

Free
  • Open SourceFree
    • Secrets management
    • Encryption
    • Community support
  • Vault Enterprise$6000/year
    • Replication
    • HSM support
    • Advanced audit

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 HashiCorp Vault if

  • You need secret storage.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Api.
  • You also want dynamic secrets.
HashiCorp Vault review

Questions people ask

Is Formance or HashiCorp Vault better?
Neither clearly leads. Formance starts at Free and HashiCorp Vault at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Formance or HashiCorp Vault?
Formance starts at Free and HashiCorp Vault at Free.
Does Formance or HashiCorp Vault run on more platforms?
Formance runs on Linux, Docker, Kubernetes, Web, API. HashiCorp Vault runs on Linux, Windows, Mac, Api.
Can I use Formance for free?
Both have a free tier, so you can try either at no cost before committing.
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 HashiCorp Vault is typically brought in for.
What can Formance do that HashiCorp Vault cannot?
Formance covers Double-entry ledger, Numscript transaction DSL, Multi-currency, Payments connectivity. HashiCorp Vault covers Secret storage, Dynamic secrets, Encryption as a service, Identity-based access.

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.

HashiCorp Vault: Does HashiCorp Vault have a free version?

Yes. The open-source Community Edition is completely free and includes core secrets management, dynamic secrets, and encryption as a service. It is self-hosted with no licensing fees or secret count limits, but lacks enterprise features like namespaces, disaster recovery replication, and Sentinel policies.

Source
Formance: Does Formance move money?

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

HashiCorp Vault: Can I use HashiCorp Vault in production?

The Community Edition is suitable for non-production environments and small teams. For production deployments, organizations typically use HCP Vault Dedicated (managed cloud service starting at approximately 22 USD per month) or Vault Enterprise with custom pricing that includes disaster recovery, performance replication, and 24/7 support.

Source
Formance: What does the enterprise version cost?

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

HashiCorp Vault: What are the main integrations available?

Vault integrates with AWS, Azure, Google Cloud, Active Directory, Okta, and 80+ other platforms. It supports dynamic credential generation for cloud providers, database systems, and identity services, enabling centralized secret management across multi-cloud infrastructure.

Source
Formance: Do I have to use Numscript?

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

HashiCorp Vault: Does Vault work offline?

Vault requires network connectivity to function as it is a centralized secrets management server. However, it can be deployed on-premises for air-gapped environments, and clients can cache short-lived tokens for temporary offline access once authenticated.

Source
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