freshbooks-api provides a single assembly wrapper library around the Freshbooks
API. Freshbooks.Library.dll exposes a class 'FreshbooksApi' that ecapsulates
the OAuth 1.0a negotiation as well as exposing service interfaces for all the
supported entities in the Freshbooks API. For more information...
More information
The CData FreshBooks Data Provider allows you to connect to FreshBooks objects like Invoices, Transactions, Sales Receipts, and Reports just like SQL tables.