Open Source Fintech Infrastructure Tools
A curated collection of the best open source infrastructure tools tailored for financial technology applications..
Open source payment orchestrator for global transactions
Stars
45,749Last commit
13 hours agoLicense
Apache-2.0
A unified payment infrastructure that connects multiple payment processors through a single API integration, enabling global payment processing
Open Source Alternative to:
Open-source crypto trading bot for market making
Stars
Stars growing over the last 30 days21,042Last commit
2 days agoLicense
Apache-2.0
Automate crypto trading strategies with a powerful, customizable platform. Connect to multiple exchanges and optimize your market making.
Open Source Alternative to:
AI-powered embedded AR/AP automation for platforms
Stars
8,360Last commit
2 years agoLicense
AGPL-3.0
Crater offers AI-driven invoicing workflows, payments, and working capital tools to enhance your platform with minimal technical effort.
Open Source Alternative to:
AI agents that transform merchant risk decisions at scale
Stars
2,450Last commit
1 month agoLicense
Unknown
Reduce fraud, accelerate underwriting, and maintain compliance with AI-driven merchant risk intelligence for PSPs, banks, and fintechs.
Open Source Alternative to:
Open source financial infrastructure for modern businesses
Stars
533Last commit
2 days agoLicense
MIT
Build custom financial flows and integrate with any provider using Formance's agnostic platform
Open Source Alternative to:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
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