Payments & Fintech8 Verified APIs

Free Payments & Fintech APIs

Payment gateways, virtual POS, invoicing, and open banking feeds

Interactive In-Browser Tools for this Category:Test endpoints and format data with zero setup

Payments & Fintech API Comparison Overview

Top Endpoints

API Service	Auth Type	Rate Limit	Security	Direct Link
Stripe	Free Key	100 istek/sn	HTTPS • CORS	Docs
PayPal	Free Key	Değişken	HTTPS • CORS	Docs
Square	Free Key	Değişken	HTTPS • CORS	Docs
Plaid	Free Key	100 istek/gün	HTTPS • CORS	Docs
Braintree	Free Key	Değişken	HTTPS • CORS	Docs
Coinbase Commerce	Free Key	Değişken	HTTPS • CORS	Docs

Available Endpoints (8)

GET

Stripe

Developer-first payment processing and billing infrastructure for global online payments.

Payments & FintechAPI KeyCORS100 req/sec

GET

PayPal

Global PayPal payment gateway, digital wallet checkouts, and recurring billing

Payments & FintechAPI KeyCORSVariable

GET

Square

Point-of-sale terminals, digital payment processing, and merchant APIs

Payments & FintechAPI KeyCORSVariable

GET

Plaid

Secure financial data network connecting apps to bank accounts and balances

Payments & FintechAPI KeyCORS100 req/day

GET

Braintree

Multi-method payment processing supporting credit cards, PayPal, and Apple Pay

Payments & FintechAPI KeyCORSVariable

GET

Coinbase Commerce

Accept cryptocurrency payments (Bitcoin, Ethereum, USDC) with zero volatility risk

Payments & FintechAPI KeyCORSVariable

GET

Razorpay

All-in-one payment gateway for Indian and global digital card/UPI transactions

Payments & FintechAPI KeyCORSVariable

GET

Mollie

European payment processing supporting iDEAL, SEPA transfers, and credit cards

Payments & FintechAPI KeyCORSVariable

About Free Payments & Fintech APIs

This directory curates 8 verified public APIs in the Payments & Fintech domain. Developers can build dashboards, mobile applications, automation bots, and microservices with these ready-to-integrate endpoints without upfront billing.

Do I need an API key?

Several APIs listed here operate as Zero-Auth services where you can execute queries directly. Others provide free developer tiers with an instant key upon registration.

Does FreeAPI support CORS?

Yes, all endpoints can be called through FreeAPI Smart Edge Gateway to bypass browser CORS headers and inspect live responses.