Open Source Alternatives to Mercury Technologies, .

Business banking.

Open source

Aemetis is a renewable fuels and biochemicals company focused on low-carbon solutions like RNG and SAF.

Open source · Self-hostable

Shopify provides a leading e-commerce platform that enables businesses of all sizes to create online stores, manage products, process payments, and fulfill orders, simplifying digital sales globally.

Open source

Global fintech-as-a-service platform enabling businesses to accept, send, and manage funds worldwide.

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A leading payment gateway and financial services platform for businesses in India.

Open source

Stripe, Inc. is an Irish-American multinational financial services and software as a service company dual-headquartered in South San Francisco, California, Unit

Open source

Plaid provides a data transfer network powering fintech and digital finance products.

Open source

Subscription management and recurring billing platform for SaaS and e-commerce businesses.

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Financial infrastructure platform enabling businesses to accept payments and manage global operations.

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Online cross-border financial services platform for international workers and migrants.

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Buy Now, Pay Later service enabling interest-free installment payments for consumers.

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Unified platform for managing digital wealth with crypto wallets, debit cards, and banking services.

Open source

Commerce enablement technology powering billions of transactions for businesses globally.

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April provides embedded tax solutions for modern financial platforms, offering tax filing and planning capabilities.

Open source

Online payment gateway and financial services provider for businesses in Turkey and emerging markets.

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An open banking payment platform enabling real-time account-to-account payments globally.

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A financial management platform for freelancers and small businesses.

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Global payment infrastructure provider enabling businesses to accept and make payments worldwide.

Open source

All-in-one revenue engine for AI agents, handling pricing, subscriptions, billing, and renewals.

Open source

Self-custodial key management and white-label wallets for platforms integrating Web3.

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A payment infrastructure company enabling account-to-account payments.

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Subscription infrastructure for mobile apps, simplifying in-app purchases and subscriptions.

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Real-time finance infrastructure for Web3, enabling per-second value transfer and automated continuous payments.

Open source · Self-hostable

Building the infrastructure for the onchain internet with smart wallets and cross-chain payments.

Open source

Payments infrastructure for banks, fintechs, and software platforms.

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Payments orchestrator for AI agents, enabling secure, encrypted payments via API and wallet.

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Agentic payments platform powering frictionless money movement between AI agents, businesses, and consumers.

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Insurtech platform simplifying insurance for small businesses and freelancers.

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Lava Payments is a fintech startup providing a payment orchestration platform for businesses to manage and optimize their payment flows.

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Reimagining patient financial engagement in healthcare through technology.

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A financial infrastructure platform offering payment processing, banking-as-a-service, and business tools for internet companies.

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AI-driven ledger management solutions for financial technology operations.

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AI-powered profit floor solution for Shopify Plus merchants using NetSuite, preventing orders from shipping below margin.

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Innovative fintech solutions platform launching soon. Subscribe for updates.

Open source

A platform for company registration, Mercury bank account opening, and Stripe payment integration.

Open source

Secure payment solution for AI agents using virtual credit cards and stablecoins.

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Online payment gateway for businesses in Paraguay, offering QR, Tigo Money, and Personal Pay integrations.

Open source

Velocitypay offers a payment processing platform for businesses, focusing on seamless integration and efficient transactions.

Open source

Forter provides an AI-powered trust platform for digital commerce, preventing fraud and abuse while maximizing revenue.

Open source

Paddle is a comprehensive payments, tax, and subscription solution for SaaS companies.

Open source

Developer-first API infrastructure for stock, options, and cryptocurrency trading.

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Embedded earned wage access for employees, integrated with HR platforms.

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A payment service provider that simplifies online payments for businesses.

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Identity risk management platform for financial institutions and fintechs to automate onboarding, fraud prevention, and compliance.

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High-performance blockchain powering decentralized applications and crypto projects.

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API for HR, payroll, and benefits administration.

Open source

BitPay is a cryptocurrency payment service provider facilitating transactions for businesses and individuals.

Open source

Sapiom provides a cloud platform enabling AI agents to access tools under a usage-based billing model.

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Pioneering the first AI-native financial institution for autonomous AI agents.

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Tokenization and data security platform for managing sensitive payment data, enabling agentic commerce.

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Client onboarding and digital account opening platform.

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Fintech protocol for universal liquidity, fixing DeFi interoperability by uniting fragmented blockchains and assets.

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Mobile-first blockchain platform.

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A non-custodial mobile platform for the P2P Lightning economy, enabling Bitcoin payments.

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A high-performance Layer 1 blockchain network connecting payment systems for efficient, compliant global asset transfers.

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App for managing car documentation, taxes, fines, and insurance in Brazil.

Open source

Atom is a mobile-first digital bank offering personal and business banking services in the UK.

Open source

Financial infrastructure for AI agents, enabling instant monetization and flexible AI billing.

Open source