(Top n)

Here are some of the most famous and widely used payment gateways around the world:

---

🌐 Global Payment Gateways:

No.	Payment Gateway	Key Features	Popular In
1	PayPal	Easy setup, supports multiple currencies, buyer/seller protection	Worldwide
2	Stripe	Developer-friendly API, recurring billing, global payments	Worldwide (esp. US, Europe)
3	Square	POS and online payments, invoicing, small business focus	US, Canada, Australia, Japan
4	Authorize.Net	Secure card processing, subscription billing	Mainly US, UK, Canada
5	Adyen	Omnichannel payments, supports large enterprises	Worldwide
6	Amazon Pay	Trusted Amazon account payments, easy integration	Worldwide (limited countries)

---

🇮🇳 Famous Payment Gateways in India:

No.	Payment Gateway	Key Features
1	Razorpay	API-driven, supports UPI, credit/debit cards, wallets
2	CCAvenue	Multiple payment options, multilingual, multi-currency
3	Paytm Payment Gateway	UPI, wallets, credit/debit cards, subscription billing
4	Instamojo	Focus on small businesses, simple checkout, digital products
5	Cashfree	Payouts, bulk disbursals, UPI, cards, easy API

---

✅ Key Criteria to Choose a Payment Gateway:

• Security & PCI Compliance

• Transaction Fees

• Supported Payment Methods (Cards, UPI, Wallets, Bank Transfer)

• Ease of Integration (APIs, SDKs)

• Payout Speed

• Global vs. Local Reach