Formance
An open-source programmable ledger for fiat and digital assets, with payment connectivity, flows and reconciliation.
Formance Ledger is a double-entry ledger published under the MIT license. Money movements are written in Formance’s Numscript language as atomic, multi-posting transactions, stored in PostgreSQL. Teams can define a chart of accounts and named transactions as YAML schemas. Formance supports production use through its Kubernetes operator or as part of the Formance Platform.
Around the ledger, Formance offers Connectivity, which normalizes payments, balances and payouts from providers such as Stripe, Adyen and Wise and from banks into one data model; Flows, for multi-step payment workflows such as splits, fees, holds and payouts; and Reconciliation, which compares ledger balances against payment pool balances.
- Website
- formance.com
- Infrastructure layers
- Ledger infrastructure (open source)
- Products (as published)
- Formance Ledger (open source, MIT license, Numscript)
Connectivity (PSP and bank connectors)
Flows (payment workflows)
Reconciliation
Formance Platform - Client types
- Teams moving money in fiat and digital assets, from payments to corporate treasury
- API documentation
- docs.formance.com
- Date checked
- Profile type
- Standard
Questions
Is Formance open source?
What is Numscript?
What database does Formance Ledger use?
See also
Sources
- Formance home
- Formance documentation
- Formance Ledger on GitHub
- Checked October 4, 2026.
Source: each provider’s own documentation, product pages, official announcements and filings, and official registers for licences, as linked in each profile. Fields a provider does not publish stay empty. How we build profiles: methodology.