Sales Tax API Client for PHP 5.5+
Sales Tax API Documentation for SmartCalcs
Sales Tax API Client for Node
Developer Portal for TaxJar
Magento 2 Sales Tax Extension by TaxJar
Sales Tax API Client for Ruby
Sales Tax API Client for .NET / C#
Support for bulk data methods in ActiveRecord (create_many and update_many)
WooCommerce Sales Tax Plugin by TaxJar
DB Fallback Layer for Rails.cache.fetch
Sales Tax API Examples for Python
Magento Sales Tax Extension by TaxJar
Validate EU VAT numbers the easy way with VIES!
Example Rails 4.2 app with Stripe, Payola, and TaxJar for a subscription site.
Attributes for non-ActiveRecord models
Postgres database table partitioning support for Rails