Midaz source-available
The double-entry ledger — the accounting core of the platform.
What it is
Midaz is Lerian's source-available central ledger — the accounting engine behind accounts, assets and transactions. You configure the financial structure once (organizations, ledgers, accounts and transaction rules) and Midaz handles the rest: double-entry accounting, balance control, immutable audit trails and event-driven integrations.
Building on legacy core systems means rigid schemas, vendor lock-in and slow releases. Midaz is modular: add products and integrations without re-architecting, with double-entry enforcement and regulator-ready reporting from the start. The source code is public on GitHub.
Capabilities
- Central ledger: accounts and transactions in real time, with double-entry guarantees.
- Multi-currency support: traditional currencies, digital assets and loyalty points in the same ledger.
- Accounting routes: reusable transaction templates that apply business rules automatically.
- Automatic triggers: react to transactions in real time — notifications, compliance workflows, analytics.
- Plugin ecosystem: extend with Pix, TED and others — or build your own.
- Immutable audit trail, and horizontal scale from thousands to millions of transactions a day.
When to use it
- Digital bank: checking accounts, savings and instant transfers, with rules applied by transaction routes.
- Multi-currency portfolios for international customers, unified into one view per customer.
- Marketplace payments: multi-party settlements processed atomically as a single transaction.
On the platform
Midaz is the accounting center where everything settles. Matcher reconciles your transactions, Reporter generates reports over your data, Flowker orchestrates pre-ledger validations and Tracer validates movements before they reach the ledger.
Open by design
Midaz is source-available under the Elastic License 2.0 (ELv2): the source code is public and auditable, and you can run it, inspect it and adapt it — with no vendor lock-in.
If Lerian disappears tomorrow, the code is still yours.
Build with Midaz.
Talk to the people who build it — or go straight to the documentation.