Activate the API Key in a Production Environment

Evernote has two environments: sandbox and production. Only the production environment is currently supported.

When an API key is requested from Evernote, the key provided by Evernote is initially active only in the sandbox environment. Therefore, when you try to create a connection instance using this key, the following error message is displayed:

Missing required oauth parameter "oauth_token"

To resolve this issue, you must follow the steps described at https://dev.evernote.com/support/glossary.php#k to activate your key in a production environment. Once the API key is active in a production environment, Evernote sends you an email confirming activation. After receiving this email, connection instances can be tested and used.