Request

Sent a POST request to:

https://test.api.amadeus.com/v1/security/oauth2/token

Adding the header:

Content-Type: application/x-www-form-urlencoded

And then the body:

grant_type=client_credentials&client_id=API_Key&client_secret=API_Secret

Response

The response will be the access token

access_token

Note: valid for only 30 minutes