# FintechToolkit

> FintechToolkit is an AI- and developer-first directory of fintech infrastructure tools: APIs, data sources, open data, integrations, and open-source projects for payments, banking, lending, wealth, KYC, AML, fraud, and compliance.

FintechToolkit is an open directory and machine-readable catalog of fintech APIs, developer tooling, banking-as-a-service platforms, and compliance infrastructure.

## Core Resources
- [All Tools](https://fintechtoolkit.com/tools): Complete index of fintech APIs and developer tools.
- [Categories](https://fintechtoolkit.com/categories): Browse by infrastructure category.
- [API Documentation](https://fintechtoolkit.com/docs/api): Public search API and machine discovery endpoints.
- [Editorial Methodology](https://fintechtoolkit.com/methodology): Verification guidelines and data standard.
- [Full Text for LLMs](https://fintechtoolkit.com/llms-full.txt): Complete unpaginated text dataset.

## Categories
- [Payments & Billing](https://fintechtoolkit.com/categories/payments-and-billing): Processing, invoicing, subscriptions, and billing.
- [Banking & Open Finance](https://fintechtoolkit.com/categories/banking-and-open-finance): Open banking, aggregation, and embedded finance.
- [Fraud, Risk & AML](https://fintechtoolkit.com/categories/fraud-risk-and-aml): Fraud detection, AML, and sanctions screening.
- [Identity & KYC](https://fintechtoolkit.com/categories/identity-and-kyc): Verification, KYC/KYB, and biometric onboarding.
- [Financial Data & Market Data](https://fintechtoolkit.com/categories/financial-data-and-market-data): Market data, FX rates, and financial APIs.
- [Developer Infrastructure](https://fintechtoolkit.com/categories/developer-infrastructure): SDKs, datasets, and developer tooling.
- [Investing & Wealth](https://fintechtoolkit.com/categories/investing-and-wealth): Trading APIs, brokerage, and wealth platforms.

## Architecture & Selection Guides
- [Getting Started with Payment APIs](https://fintechtoolkit.com/guides/getting-started-payment-apis): Compare Stripe, [Adyen](/tools/adyen), and other payment APIs to pick the right processor for your stack.
- [A Guide to Open Banking APIs](https://fintechtoolkit.com/guides/guide-open-banking-apis): How Plaid, Tink, and others connect bank accounts and power financial data access.
- [KYC & Identity Verification for Fintechs](https://fintechtoolkit.com/guides/kyc-identity-verification-fintech): Navigate Onfido, Alloy, [Persona](/tools/persona), and the evolving identity verification landscape.

## Agent Protocol Discoverability
- API Catalog (RFC 9727): https://fintechtoolkit.com/.well-known/api-catalog
- ARD Capability Manifest: https://fintechtoolkit.com/.well-known/ai-catalog.json
- MCP Server Card (SEP-1649): https://fintechtoolkit.com/.well-known/mcp/server-card.json
- MCP Transport Endpoint: https://fintechtoolkit.com/api/mcp
- Agent Skills Discovery: https://fintechtoolkit.com/.well-known/agent-skills/index.json
- OpenID / OAuth Discovery: https://fintechtoolkit.com/.well-known/oauth-authorization-server
- Protected Resource Metadata (RFC 9728): https://fintechtoolkit.com/.well-known/oauth-protected-resource
- Auth.md Agent Registration: https://fintechtoolkit.com/auth.md
- x402 Payment Protocol: https://fintechtoolkit.com/.well-known/x402
- Universal Commerce Protocol: https://fintechtoolkit.com/.well-known/ucp
- Agentic Commerce Protocol: https://fintechtoolkit.com/.well-known/acp.json
- OpenAPI 3.1 Spec: https://fintechtoolkit.com/openapi.json