[blnkfinance —](https://github.com/blnkfinance) # Asked to move money?Don't build it from scratch Build with an open-source, double-entry ledger designed for managing financial products in production. [Create account](https://cloud.blnkfinance.com/auth/sign-up) [Book a call](https://blnkfinance.com/contact/us) TypeScriptGoPythonJavacURL  Maya Chen bln\_maya-bal-001 $1,230.12USD ``` const response = await blnk.Transactions.create({ precise_amount: 123012, precision: 100, currency: 'USD', source: '@WorldUSD_ACH', destination: 'bln_maya-bal-001', reference: 'ref_dep_01', description: 'Wallet deposit', meta_data: { rail: 'ach', origin: 'payroll' }, skip_queue: true,}); ``` WalletCryptoTicketAI tokensNeobanksReconciliation Trusted by licensed, regulated companies: -  -  -  -  -  Blnk Core ## Build and ship transaction workflows in days Model any transaction workflow on an immutable, double-entry ledger, from simple transfers to multi-step flows, and get to production fast. [Explore the docs](https://docs.blnkfinance.com) ## Transaction details USD Amount Description ## Transaction workflows Add workflow Reset 200 OK TypeScript Go Python Java cURL Run Go back ``` 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 Blnk Cloud ## Deploy and operate your ledger in production Skip the manual infrastructure work. Get a production ledger with compliance, uptime SLAs, backups, and security built in for your financial product. [Create account](https://cloud.blnkfinance.com/auth/sign-up) BF Blnk Finance GENERAL Home Insights BACK OFFICE Ledgers Balances Transactions Identities Reconciliations MONITORING Alerts Apps library What's new? Need help? Search⌘K New Aug 16, 02:24 PM # Good afternoon, Claire What would you like to do today?⌘K ## Instances Deploy an instance Found 0 instances You need at least one instance to use Cloud. Deploy new CoreConnect self-hosted instance ## Explore Cloud See what else you can do with Blnk. ### Deploy an instance ##### Deploy a managed instance Deploy instance ### Invite other team members ##### Build and operate together as a team in Cloud. Invite a teammate ### Add 2FA to your account ##### Secure your account with 2FA. Enable 2FA ## Resources Tutorials Get started quickly with practical videos that walk you through the basics. Watch tutorials Cloud Guide Dive into our step-by-step help docs for using Blnk Cloud. View Cloud Guide Core API Docs Everything you need to integrate Blnk Core into your systems. View API Docs Go back # Deploy a managed instance All fields marked \* are required ### Deploy Managed Core We'll host your Core for you. Deployment type\* Sandbox Production Instance name\* Region\* Select region New York City, United States London, United Kingdom Amsterdam, the Netherlands Singapore Frankfurt, Germany Toronto, Canada Pricing summary Production instance $ 1,000.00 Infrastructure, backups, and high availability Included usage 200,000 records Additional usage $0.000175 per additional record Charged today $ 1,000.00 Deploy instance Clicking “Deploy instance” means you agree with our Service Level Agreement (SLA) and Terms of Use. What's included Production-grade infrastructure Dedicated infrastructure with throughput of up to 100,000 TPM (transactions per minute). High availability 99.9% uptime SLA with automated failover and backups. Guided migration and deployment Hands-on support for safely migrating existing ledger data and workloads. Built-in Data Lake Access long-term ledger data for audits, reporting, and operational insights. Dedicated support Dedicated Slack support channel 24/7 support with 1-hour SEV 1 response for your deployment issues ## Confirm deployment You are about to deploy your Production instance in . Takes about 10–30 minutes to complete. Charged today$ 1,000.00 Your subscription starts immediately. Future invoices will include the $ 1,000.00 USD monthly subscription plus any additional usage. CancelConfirm and deploy ### Managed deployments Spin up a production ledger. We handle all of the infra so you can focus on building your product. ### Role-based access control Assign precise roles, OAuth scopes, and API key permissions so teammates get only the access they need. ### Control center One dashboard for your ledger health. Query balances, audit logs, and traces across all environments. ### SQL-native ledger analytics Get real-time visibility into volumes, balances, and the chart of accounts so you can make informed, data-led decisions. Blnk Tiny ## An embedded transaction engine built for financial products Tiny gives your product its own dedicated engine for transactions and balances. Run it embedded or standalone, with durable local storage, no external database stack, and millions of TPMs on modest hardware. [Request access](mailto:support@blnkfinance.com?subject=Request%20access%20to%20Blnk%20Tiny) ### Lightweight by design Tiny keeps the transaction path small, delivering high write throughput on modest commodity hardware without a database cluster. ### A single binary with no infra stack Tiny ships as a single binary with storage, transactions, recovery, and indexing built in. Run it embedded or standalone, with no Postgres or Redis required. ### Durable at the commit boundary Transactions are WAL-backed and acknowledged only after reaching the durability boundary. Checksums and crash recovery protect committed state. ### Correct financial state Tiny controls how transactions become balance changes. Writes are ordered, duplicates are rejected, records are immutable, and every update follows the same deterministic commit path. Stories ## Hundreds of engineers sleep well at night with Blnk powering their product. [Read more stories](https://blnkfinance.com/customers)  Toni Akinmolayan Senior Engineer Yousend > Integration was seamless, and the fact that it’s open-source adds flexibility. On top of that, Blnk is incredibly fast, making it a solid choice for high-performance financial systems. Toni Akinmolayan, Senior Engineer, Yousend  Sajith Caldera CEO & Co-founder Bitnomi > The level of attention and dedication was exceptional. The support we got has been outstanding, and we couldn’t ask for better partners. Sajith Caldera, CEO & Co-founder, Bitnomi  Mario León CEO & Co-founder Tecnología Financiera > We had the licenses and the infrastructure, but without a financial core, we couldn’t move forward. Blnk gave us the foundation to build on. Mario León, CEO & Co-founder, Tecnología Financiera -  Public Grid ### How Public Grid went from bare Postgres to a production-grade ledger [Read Public Grid's story](https://blnkfinance.com/customers/public-grid) -  Morna Tech ### How Morna Tech cut a year of development to 6 months with Blnk [Read Morna Tech's story](https://blnkfinance.com/customers/morna-tech) -  Yousend ### How Yousend shipped cross-border payments with Blnk Finance [Read Yousend's story](https://blnkfinance.com/customers/yousend) -  Tecnología Financiera ### How Tecnología Financiera uses its licenses and Blnk to power Venezuela’s fintechs [Read Tecnología Financiera's story](https://blnkfinance.com/customers/tecnologia-financiera) Security ## Open-source ledger infrastructure you can trust Blnk is ISO/IEC 27001-certified and GDPR-compliant. Built with security features and best practices auditors ask for. [How we handle security](https://blnkfinance.com/security)   ### ISO/IEC 27001 and GDPR Blnk’s ISMS is certified to ISO/IEC 27001. Personal data is processed under GDPR. ### Encryption in transit and at rest Sensitive data at rest is encrypted with AES-256-GCM. Data in transit uses TLS 1.2 or higher. ### Role-based access control Give every team member the access they need, and nothing more. Granular roles keep sensitive ledger operations restricted while making audits and reviews straightforward. ### Built for security reviews We support vendor and security reviews with clear policies around access control, information security, incident response, and business continuity. ## See the latest from Blnk Finance [Read more](https://blnkfinance.com/blog) - [  Build ### How Blnk handles high-traffic hot balances July 17, 2026 ](https://blnkfinance.com/blog/how-blnk-handles-high-traffic-hot-balances) - [  Build ### How to split payments for a delivery app across merchants, riders, and fees using the Blnk Ledger July 1, 2026 ](https://blnkfinance.com/blog/how-to-split-payments-across-merchants-fees-and-revenue-with-blnk) - [  Guides ### How to handle idempotency in your financial app using the Blnk Ledger May 4, 2026 ](https://blnkfinance.com/blog/how-to-handle-idempotency-in-your-financial-app-using-the-blnk-ledger) - [  Build ### How to build a loan disbursement and repayment app with Flutterwave + Blnk April 23, 2026 ](https://blnkfinance.com/blog/how-to-build-a-loan-disbursement-and-repayment-app-with-flutterwave-blnk)