To check if your application has been suspended:
Attempts to access the Twitter API through a suspended API key will result in our API returning an HTTP 401 response error: “invalid/suspended application.”
We often send a suspension notification email directly to the email address associated with the account that registered the application.
Applications are generally suspended for violating our API Terms of Service, or for causing or encouraging users to violate The Twitter Rules.
Please review these terms to find out more about specific violations.
Please send an email to api@twitter.com from the email address associated with the Twitter account that registered the application. We cannot provide any information regarding an application to anyone other than the registrant of the application.
Include the following information as text in the body of your email (our ticketing system automatically discards attachments):