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Open Source Fintech Infrastructure Tools using AWS

A curated collection of the best open source infrastructure tools tailored for financial technology applications. using AWS.

Hyperswitch

Open source payment orchestrator for global transactions

  • Stars

    Stars growing over the last 30 days45,378

  • Last commit

    7 hours ago

  • License

    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:

Stripe Billing

Crater

AI-powered embedded AR/AP automation for platforms

  • Stars

    8,355

  • Last commit

    2 years ago

  • License

    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:

Quickbooks

Ballerine

AI agents that transform merchant risk decisions at scale

  • Stars

    2,448

  • Last commit

    12 days ago

  • License

    Unknown
Reduce fraud, accelerate underwriting, and maintain compliance with AI-driven merchant risk intelligence for PSPs, banks, and fintechs.

Open Source Alternative to:

Seon
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