The unofficial Constant Contact Python SDK by Lambert Wang provides access campaign marketing features of the API with installation and documentation resources. Install with pip and visit the API documentation available at http://developer.constantcontact.com/docs/developer-guides/api-documentation-index.html
Railsware, creator of Mailtrap (email test environment), has released the Mailtrap API. Mailtrap provides a "fake" SMTP server so developers can test email environments without the need of actual customers or users. Mailtrap has proved a useful tool to the developer community; however, API access to Mailtrap features has been desired for third party integration. Mailtrap Product Manager, Pavel Pavlovsky, announced that numerous developers requested API access over the past year and Railsware is happy to announce its availability.