API Catalog

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Tax & Accounting
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Tax & Accounting
GoSystem
GoSystem

This API integration between client and GoSystem, client applications can check e-file status, print returns, and more.

ONESOURCE Indirect Tax
ONESOURCE Indirect Tax Calculation REST API

Cloud-based solution for seamless transaction tax management, featuring an API for effortless tax calculations.

ONESOURCE Income Tax
ONESOURCE Income Tax

ONESOURCE Income Tax APIs provide developers access to data that supports their company United States Income Tax Returns.

ONESOURCE E-Invoicing (New)
Action API

This API is used to Cancel/Restart the document if we come across any errors while processing at OEI (One Source E-invoicing) or at the Pagero.

ONESOURCE E-Invoicing (New)
Target API

Get target document for document.

ONESOURCE E-Invoicing (New)
Get A Document API

This API provides a single document for provided document ID.

ONESOURCE E-Invoicing (New)
Post documents API

This API is used to send documents.

ONESOURCE E-Invoicing (New)
Get Companies API

The API retrieves a list of all companies user has access to for a given tenant

ONESOURCE E-Invoicing (New)
Get Documents API

The API provides a list of sent and received documents available for a given company.

ONESOURCE E-Invoicing (New)
External Status API

This API is used to update the external status and external status message for the given documentIds in OEI (ONESOURCE E-Invoicing) DB.