# Pay API endpoints

This topic provides a consolidated list of endpoints and associated methods for all v11 Pay APIs. For links to all topics see the API Reference List.

See [Common Pay API Headers](/docs/pay/general/common-pay-api-headers) for the header parameters that must be sent with all Pay requests.

## Authentication

All Travelport TripServices APIs require authentication with OAuth 2.0. Before calling any API, you must follow an OAuth-based authorization procedure to obtain an access token. That access token is valid for 24 hours and must be sent with every call during that time. Do not request a new token for each API call. See [Authentication](/docs/getting-started/authentication) for full details.

Use these endpoints for authentication requests:

  *Pre-production* https://auth.pp.travelport.net/oauth/token

  *Production* https://auth.travelport.net/oauth/token

## Base Path for All Pay APIs

Every TripServices API requires a request sent to an authorization endpoint unique to that API. This unique endpoint is listed at the top of every API Reference in this online help. In addition, this topic provides a consolidated list of all endpoints.

The beginning string of these endpoints is the same across all Pay APIs, and is called a *base path* because it is shared across APIs. The following are the current, [post-migration](/docs/getting-started/authentication#endpoint-migration) base paths for the TripServices Pay API endpoints.

Base path:

  *Pre-production* https://api.pp.travelport.net/11/payment/

  *Production* https://api.travelport.net/11/payment/

Combine the appropriate base path with the Pay API authorization endpoints in the next section. For example, the complete [post-migration](/docs/getting-started/authentication#endpoint-migration) endpoint for the Validation API in the production environment is

> https://api.travelport.net/11/payment/domain/paymentcardauthorizations/VALD


## Pay APIs Endpoints

| Action | Endpoint (add to [Base Path](#base-path-for-all-pay-apis) above) |
|  --- | --- |
| Payment Card Authorization | POST paymentcardauthorizations/AUTH |
| Address Verification | POST domain/paymentcardauthorizations/AAVS |
| Authorization Reversal | POST domain/paymentcardauthorizations/REVS |
| Validation | POST domain/paymentcardauthorizations/VALD |