Blnk Finance
Open-source financial core for building fintech products
Blnk Finance launched on April 10, 2025 with 206 votes, #170 of 7,818 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Blnk Finance is an open-source developer-first financial Core for building and shipping fintech products faster without compromising on compliance and correctness. Get access to: 📔 Double-entry ledger | ⚙ Reconciliation engine | 🪪 Identity Management.
Build wallets, loans, payouts, and other financial products with an open-source, double-entry ledger. Start with Blnk Core or deploy on Blnk Cloud.
Blnk is an open-source immutable ledger for building financial products. Model any money movement flow, and ensure correctness from your first transaction to your hundred-millionth. const response = await blnk.Transactions. create ({ precise_amount: 125034 , precision: 100 , currency: ' USD ' , source: ' @WorldUSD ' , destination: ' @MyBalance ' , reference: ' ref_f482a1b3-6c2d-4e89-a17b-3d5e8f2a1c94 ' , description: ' Customer payment ' , skip_queue: true , }); Running Used in production by: Used in production by: Blnk Core Enforces accuracy, traceability, and compliance in every transaction record. Recorded transactions cannot be edited or deleted. History is only appended. Concurrent…from blnkfinance.com
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