Integration Guide

Table Of Contents
PayPal Name-Value Pair API Basics
Obtaining API Credentials
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30 May 2010 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 who is 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: Although you can have both a signature and certificate, you cannot use both at
the same time.
Creating an API Signature
An API signature consists of an API username along with an associated API password and
signature, all of which are assigned by PayPal. You need to include this information whenever
you execute a PayPal API operation.
You must have a PayPal Business account to create a signature.
To create an API signature:
1. Log into PayPal, then click Profile under My Account.
2. Click API Access.
3. Click Request API Credentials.
4. Check Request API signature and click Agree and Submit.