We need to create a Twitter account and register our application with the account. Then we will receive the authentication credentials for our app. To create an account, go to http://www.twitter.com and complete the signup process. Do the following to register your application once you have a Twitter account:

1. Log in to http://apps.twitter.com with your main Twitter account, and then select Create New App.
2. Fill out the new app form. Note that Twitter application names need to be unique globally.
3. Go to the app's settings and then change the app permissions to have read and write access. You may need to register your mobile number to enable this.

Now we need to get our access credentials by following the next steps:

1. Go to the Keys and Access tokens section and then note the Consumer key and the Access Secret
2. Generate an Access token
3. Note down the Access token and the Access token secret (Access token secret is generated form the Consumer key and Access secret)