Use Case

Payment Processing

Charging cards, wallets, and bank rails.

36 providers 1010 APIs 24 declared variants

Accepting and settling payments — card authorization and capture, ACH and SEPA transfers, wallets, refunds, payouts, and cross-border money movement across markets and payment methods.

36 API providers on the APIs.io network offer payment processing. The highest-rated are Square, Adyen, Solana, Paystack, Blockfrost.

Providers

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 4 Complete, well-documented, and agent-ready
Square Square provides APIs for payment processing, point of sale, and business management solutions enabling deve... 45 APIs 72.7 Adyen Adyen is a global payment company that provides businesses with a single platform to accept payments from c... 202 APIs 72.3 Solana Solana is a high-performance blockchain platform designed for fast, secure, and scalable decentralized appl... 12 APIs 71.8 Paystack Paystack is an African payment processor (acquired by Stripe in 2020) that lets businesses accept payments ... 21 APIs 68.5
Strong 12 Solid coverage with minor gaps
Blockfrost Blockfrost is a RESTful API service providing access to the Cardano blockchain and its ecosystem. It serves... 20 APIs 65.1 Tink Tink, a Visa solution acquired in 2022, is a European Open Banking platform with 6,000+ bank connections ac... 25 APIs 64.8 Airwallex Airwallex is a financial technology company that specializes in providing global payment solutions for busi... 14 APIs 64.3 Apple Collection of Apple's public APIs and developer resources. 21 APIs 64.1 dLocal dLocal (NASDAQ: DLO) is a Uruguay-headquartered emerging-markets payment infrastructure platform connecting... 16 APIs 64.1 Intuit Collection of APIs offered by Intuit for financial and business management services. 11 APIs 63.7 Efí Pay (Gerencianet) Efí Pay (formerly Gerencianet) is a Brazilian fintech and Banco Central-licensed payment institution headqu... 36 APIs 60.6 Authorize.net Authorize.net is a leading payment gateway providing secure online payment processing for merchants. It off... 5 APIs 60.4 Paymob Paymob is a Cairo-headquartered, licensed payment infrastructure provider for the MENAP region. Serving rou... 18 APIs 60.3 Backpack Backpack is a Solana-first crypto company founded by Armani Ferrante and Tristan Yver — the same team behin... 15 APIs 59.3 Algorand Algorand is a pure proof-of-stake blockchain platform designed for speed, security, and decentralization. I... 19 APIs 59.0 token-io Token.io is an Open Banking infrastructure provider offering A2A (Account-to-Account) payments and account ... 29 APIs 58.4
Developing 10 Usable, with meaningful gaps to close
Apple Pay Apple Pay enables secure, frictionless payments in apps and on the web using the payment cards stored in us... 5 APIs 55.7 Mews Mews is a cloud-native hospitality cloud and property management system (PMS) headquartered in Prague, Czec... 79 APIs 54.4 Kushki Kushki is an Ecuador-headquartered LatAm fintech operating as a regional non-banking acquirer for the Andea... 12 APIs 54.2 Abstract API Abstract API is a platform that offers a wide range of API services for developers to easily integrate vari... 14 APIs 54.0 IOTA IOTA is an open-source distributed ledger technology built to bring real-world applications on-chain. It is... 17 APIs 53.8 Block Block, Inc. is a global technology company building economic empowerment tools through a family of products... 5 APIs 53.3 BNY Mellon BNY Mellon is a global investments company providing asset servicing, asset management, wealth management, ... 5 APIs 52.4 Mastercard Mastercard is a global technology company in the payments industry, providing APIs for payment processing, ... 249 APIs 49.5 Avaloq Avaloq is a leading provider of wealth management technology and digital banking solutions, offering over 7... 6 APIs 45.8 Commonwealth Bank Commonwealth Bank of Australia (CBA) is Australia's largest bank by market capitalization, a "Big Four" aut... 25 APIs 44.2
Thin 6 Limited public surface area
Barclays Barclays is a multinational financial services company providing retail and commercial banking, investment ... 23 APIs 40.7 OPay OPay is a Nigerian mobile money and fintech super-app operated by Blue Ridge Microfinance Bank (OPay Digita... 3 APIs 39.6 APILayer APILayer is an API marketplace and hub that enables developers to discover, integrate, and build with high-... 1 API 39.1 BetSolutions BetSolutions provides a casino and gaming platform API offering a two-way HTTP API with JSON data format fo... 7 APIs 35.3 Aetna Aetna, a CVS Health company, offers health insurance, dental, vision, and other plans for individuals, fami... 4 APIs 34.9 Riskified Riskified (NYSE RSKD) is an Israeli ecommerce risk-management platform that uses machine learning and a glo... 7 APIs 31.7
Emerging 4 Early or largely undocumented
Asaas Asaas is a Brazilian financial-services and payments platform headquartered in Joinville, SC. It operates a... 20 APIs 27.9 Bancontact Bancontact is Belgium's most popular electronic payment system, operating through the Bancontact Payconiq C... 1 API 25.4 Pagar.me Pagar.me is the API-first online payments platform from Stone Co., one of Brazil's largest financial techno... 17 APIs 24.1 API Layer APILayer is a curated API marketplace offering 178+ production-ready APIs across categories including finan... 1 API 23.0

What Providers Actually Declared

This use case is a canonical term. These are the free-text strings providers wrote in their own apis.yml that map onto it.

Accept Payments OnlineBrazilian E-Commerce CheckoutBrazilian e-commerce checkoutCross-Border PaymentsCross-border payroll and contractor payoutsCross-border remittance and international paymentsCurrency ConversionE-Commerce CheckoutE-Commerce Payment ProcessingE-commerce CheckoutE-commerce checkoutIn-App PurchasesLatAm e-commerce checkout with card, cash, and bank transfer in one integrationMarketplace and Platform PayoutsMultichain wallet integrationNigerian E-commerce CheckoutPSD2 / SCA exemption optimization for European card paymentsPayment ProcessingPayoutsPayouts and settlements for marketplaces and platformsPoint of Sale IntegrationRemittance ProcessingWallet DevelopmentWallet Integration

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