FintechToolkit
  • Tools
  • Categories
  • Guides
  • Datasets
  • Open Source
/

FintechToolkit

The AI- and developer-first directory of fintech infrastructure tools. Curated APIs, data sources, and open-source projects for builders shipping payments, banking, and beyond.

Know a tool that belongs here?

Submit a Tool

Browse

  • All Tools
  • Categories
  • Guides
  • Datasets
  • Open Source

Categories

  • Payments & Billing
  • Open Banking
  • Identity & KYC
  • Market Data

© 2026 FintechToolkit. The toolkit for fintech builders.

PrivacyTerms
  1. Home
  2. Categories
  3. Payments & Billing

Payments & Billing

11 tools

Payment processing, invoicing, subscription management, and billing infrastructure for fintech applications.

Tools in this category

Stripe logo

Stripe

Featured

Full-stack payments platform for accepting payments, managing subscriptions, and running marketplaces.

Payments & Billing
API, SDKGlobalUsage-based
Brex logo

Brex

Spend management and corporate cards API for venture-backed and enterprise companies.

Payments & Billing
APIUSEnterprise
Adyen logo

Adyen

Featured

Single global platform for card acquiring, local payment methods, and unified commerce.

Payments & Billing
API, PlatformGlobalUsage-based
Checkout.com logo

Checkout.com

Enterprise payment processing with direct acquiring and granular authorisation control.

Payments & Billing
APIGlobalUsage-based
Paddle logo

Paddle

Merchant of record for software companies — billing, sales tax, and compliance handled.

Payments & Billing
API, PlatformGlobalUsage-based
Lemon Squeezy logo

Lemon Squeezy

Merchant of record for digital products, with checkout, subscriptions, and tax handled.

Payments & Billing
APIGlobalUsage-based
Mollie logo

Mollie

European payments provider with local methods and a deliberately simple integration.

Payments & Billing
API, SDKEuropeUsage-based
Razorpay logo

Razorpay

Full-stack payments and business banking for the Indian market.

Payments & Billing
API, SDKIndiaUsage-based
Airwallex logo

Airwallex

Global accounts, FX, and payouts for businesses operating across multiple currencies.

Payments & Billing
API, PlatformGlobalUsage-based
Moov logo

Moov

Open Source

Payments platform with a large set of open-source Go libraries for ACH and wires.

Developer InfrastructurePayments & Billing
API, OSSUSUsage-based
Hyperswitch logo

Hyperswitch

Open Source

Open-source payment orchestrator that routes across multiple processors.

Developer InfrastructurePayments & Billing
API, OSSGlobalFree