Integration Guide
Table Of Contents
- Express Checkout Integration Guide
- Contents
- Preface
- Introducing Express Checkout
- Express Checkout Button and Logo Image Integration
- PayPal Name-Value Pair API Basics
- Implementing the Simplest Express Checkout Integration
- Testing an Express Checkout Integration
- Customizing Express Checkout
- Implementing the Instant Update API
- Immediate Payment
- Handling Payment Settlements
- Handling Recurring Payments
- How Recurring Payments Work
- Recurring Payments Terms
- Recurring Payments With Express Checkout
- Options for Creating a Recurring Payments Profile
- Recurring Payments Profile Status
- Getting Recurring Payments Profile Information
- Modifying a Recurring Payments Profile
- Billing the Outstanding Amount of a Profile
- Recurring Payments Notifications
- Using Other PayPal API Operations
- Integrating giropay with Express Checkout
PayPal Name-Value Pair API Basics
Obtaining API Credentials
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28 October 2009 Express Checkout Integration Guide
Obtaining API Credentials
To use the PayPal API, you must have API credentials that identify you as a PayPal business
account holder authorized to perform various API operations.
Although you can use either an API signature or a certificate for credentials, PayPal
recommends you use a signature.
IMPORTANT: You can use either a signature or a certificate; however, you cannot use a
signature and a certificate at the same time.
Creating an API Signature
You must establish credentials to use the PayPal API; typically, you create an API signature.
You must have a PayPal business account.
An API signature is a credential that consists of an API username along with an associated
API password and signature, all of which are assigned by PayPal.
To create an API signature
1. Log into PayPal and click Profile.
2. Click API Access from the Profile menu.