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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.

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Guides

Practical guides and research notes for fintech builders — from choosing the right API to navigating compliance and infrastructure decisions.

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Getting Started with Payment APIs

Compare Stripe, [Adyen](/tools/adyen), and other payment APIs to pick the right processor for your stack.

FintechToolkit Editorial Team · Methodology 1.0

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A Guide to Open Banking APIs

How Plaid, Tink, and others connect bank accounts and power financial data access.

FintechToolkit Editorial Team · Methodology 1.0

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KYC & Identity Verification for Fintechs

Navigate Onfido, Alloy, [Persona](/tools/persona), and the evolving identity verification landscape.

FintechToolkit Editorial Team · Methodology 1.0

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