The following links and external resources can help you integrate the service.

Useful links

Use the following links to learn more about the service:

Area of interest	Link to resource
Interested in learning more about this service	Getting Started with O Series Cloud Online Commerce
Interested in learning more about this API integration	Getting Started with O Series Cloud Online Commerce API
An existing customer	Vertex Community
Using Vertex Invoice IQ	Vertex Invoice IQ
Using Vertex Validator	Vertex Validator

O Series Cloud URLs

Vertex O Series Cloud is a Software as a Service (SaaS) solution that streamlines the calculation and reporting of indirect taxes. It integrates with your financial host system to calculate global indirect taxes on processed transactions. O Series Cloud supports a wide range of indirect taxes, including sales tax, consumer use tax, and value added tax (VAT).

Use the following base URLs:

Environment	URL
Vertex O Series Cloud Portal	`https://app.vertexcloud.com`

O Series Cloud Online Commerce URLs

After you obtain an access token, you can securely communicate with the API endpoint from your financial host system. The API returns all responses in JavaScript Object Notation (JSON) format, which you can convert into language-specific objects for use in your host system.

A Uniform Resource Identifier (URI) represents the portion of a Uniform Resource Locator (URL) that excludes the API endpoint path. It defines where the service is hosted. The URL can change depending on the environment and the type of API call you make.

Use the following base URIs:

Environment	URI
Sandbox	`https://oseries-plus-api.sandbox.marketplace.taxamo.com`
Production	`https://oseries-plus-api.marketplace.taxamo.com`