Hello @noahclarie,
Please check our website for specific APIs relevant to your business case. https://developer.visa.com/apibrowser
Since you are interested in payment methods, please navigate to the link below to view our Payment Methods APIs.
Payment Methods APIs
https://developer.visa.com/site/payment-methods
Visa Checkout
https://developer.visa.com/capabilities/visa_checkout/docs
Visa Checkout provides consumers with a single sign-in service so that they can skip having to input their personal information, shipping details, and payment card details whenever they shop online at a participating merchant. For Visa Checkout, the consumers are the ones logging in for their card information to be pulled via the Visa Checkout API. Visa Checkout accepts most major credit or debit cards so that consumers can checkout easily and securely using their payment method of choice.
CyberSource Payments
https://developer.visa.com/capabilities/cybersource/docs
With CyberSource, you can process credit, debit and gift cards across the globe and across multiple channels with scalability and security. CyberSource supports an extensive list of payment cards and offers a wide choice of gateways and acquiring banks, all through one connection.
Visa Direct
https://developer.visa.com/capabilities/visa_direct/docs
In particular, if you are interested in using Visa Direct, see the top few paragraphs that are shaded in yellow that discuss the requirements to use Visa Direct.
After having read the documentation, if you meet those requirements, then please click through the link in those paragraphs to the Visa Direct Program Implementation Questionnaire, fill it out, and submit to the email address listed on that form.
To get started, please follow the steps in the “Working with Visa APIs” link below to register and create a Visa Developer application.
https://developer.visa.com/pages/working-with-visa-apis
This guide walks you through the key steps for application creation, credentials, and connection validation.
If you are ready after testing your App in sandbox, send us a production request and we will evaluate your Application and other credentials.