#USPS WEB TOOLS USER ID VERIFICATION#

There are no restrictions on how many addresses can be checked at one time.īlogspot – How to mail internationally Unlike other web tools, the library does not follow the OpenID authentication pattern.īecause the USPS API is free and open, it can be used by anyone. You will need a USPS Web Tools User ID to access the library. The USPS Web Tools API library is available free of charge. Similarly, the ZIP Code Lookup API tells the user the correct ZIP+4 code for a given address. The Address Validation / Standardization API checks the address against the database to ensure that the submitted address is correct. All of these APIs perform specific functions.

#USPS WEB TOOLS USER ID VERIFICATION#

These include the Address Verification / Standardization API, ZIP Code Lookup API, and City State Lookup API.

USPS offers three types of address API suites. If an address is found to be invalid, it is rejected by the database. Using the APIs, however, can help standardize the addresses. Several addresses are missing from the database. While the USPS database contains a huge amount of addresses, it is not perfect. However, most of the APIs are not designed to be used by large scale businesses or for mass data cleansing. Some of the APIs are available in C#, JavaScript and iOS. There are multiple APIs available from the USPS.

It also has tracking and confirmation information. This includes address validation, package pickup, domestic mail service and shipping labels.

The USPS (United States Postal Service) API provides access to postal address information.

Usps web tools user id