Discover the best Fintech open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
Open source, composable payments platform | PCI compliant | SaaS and Self-host options | Enables connectivity to multiple payment, payout, fraud, vault and tokenization providers | Uplifts authorization with intelligent routing and revenue recovery | Reduce payment processing costs with cost observability | Reduces payment ops with reconciliation
Open-source quantitative decision lab: test market assumptions, preserve negative results, and reproduce evidence.
Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics
Open-source personal finance app with an AI financial advisor: track your net worth, investments, ETFs, cash and debts on your own computer.
Self-hosted, open-source payment gateway. Manage brands, gateways, and transactions on your own infrastructure.
Metering and Billing for AI, API and DevOps. Collect and aggregate millions of usage events in real-time and enable usage-based billing.
Apache Fineract
Blnk is an open-source ledger & financial core for shipping fintech products fast.
Open Source Wealth Management Software. Angular + NestJS + Prisma + Nx + TypeScript 🤍
Thư viện .NET & Web API hiệu năng cao xử lý mã QR thanh toán VietQR chuẩn NAPAS247 & EMVCo. Hỗ trợ .NET 6/8/9/10, nhúng sẵn 76+ ngân hàng, render PNG/WebP/SVG.
Self-hosted, open-source financial data MCP server for AI agents — SEC filings, XBRL financials, 13F holdings, insider & congressional trades, short interest, FRED, CFTC/CBOE and daily prices across 64 MCP tools. Equibles Cloud adds earnings call transcripts, live quotes, options chains with Greeks, guidance and a screener.
Intuitive Data Workflows
iyzipay api php client
💰 Double-entry bookkeeping made easy — plain-text accounting for humans and AI agents. Polished iOS & Android app built with React Native + Expo.
iyzipay api node.js client
High performance multithreaded task execution and optimization engine for agents and dweb apps
Non-custodial Stellar/USDC payments API for DeenBridge — SEP-1/7/10/29, path payments, multi-asset trustlines, and Horizon reconciliation on a Node/Express + MongoDB core.
A corridor-integrity monitor for the Stellar network. Prices stablecoin→fiat-token corridors, scores routes against independent reference rates, and refuses to recommend when all options are unusable. Features wallet integration (Freighter/Albedo) and on-chain attestations via Soroban smart contracts.
Numscript is a Domain-Specific Language (DSL) designed to help you model complex financial transactions, replacing complex and error-prone custom code with easy-to-read, declarative scripts.
Offline-first Python AI agent that runs a tiny research business: quotes each job against its own costs, collects via Stripe, fulfils with NVIDIA Nemotron, pays vendors within a spend policy, and declines unprofitable work.