Firstly, you will need to have a Twitter account and obtain credentials (consumer key, consumer secret, access token, and access secret) on the Twitter developer platform to access the Twitter API, following these steps:

1. Create a Twitter user account.
2. Log in with your Twitter user account at https://apps.Twitter.com/.
3. Click Create New App.
4. Fill out the form, agree to the terms, and click on Create your Twitter application.
5. Go to the next page, click on the Keys and Access Tokens tab, and copy your API key and API secret. Scroll down and click on Create my access token, and copy your Access token, and Access token secret.

Once, we're ready with the Twitter credentials we can move to the next stages of the analysis: