CATEGORY #328 API

Payments & Fintech

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

Payments & Fintech API Comparison Overview

Top Endpoints
API ServiceAuth TypeRate LimitSecurityDirect Link
StripeFree Key100 istek/snHTTPS • CORSDocs
PayPalFree KeyDeğişkenHTTPS • CORSDocs
SquareFree KeyDeğişkenHTTPS • CORSDocs
PlaidFree Key100 istek/günHTTPS • CORSDocs
BraintreeFree KeyDeğişkenHTTPS • CORSDocs
Coinbase CommerceFree KeyDeğişkenHTTPS • CORSDocs

Available Endpoints (8)

Payments & Fintech

Stripe

Developer platform for internet payments, checkout flows, and subscriptions

Featured🔒 API KEY100 req/sec
Payments & Fintech

PayPal

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

Featured🔒 API KEYVariable
Payments & Fintech

Square

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

Featured🔒 API KEYVariable
Payments & Fintech

Plaid

Secure financial data network connecting apps to bank accounts and balances

Featured🔒 API KEY100 req/day
Payments & Fintech

Braintree

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

Featured🔒 API KEYVariable
Payments & Fintech

Coinbase Commerce

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

🔒 API KEYVariable
Payments & Fintech

Razorpay

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

🔒 API KEYVariable
Payments & Fintech

Mollie

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

🔒 API KEYVariable

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.