Claude Console

Go to the Console — visit console.anthropic.com and sign in.
Open API Keys — in the left sidebar, click "API Keys".
Create a new key — click the "Create Key" button in the top right.
Name your key — give it a descriptive name (e.g. "Saas Manager") so you can identify it later.
Copy and save it — the key is shown only once. Copy it immediately and store it somewhere secure (like a password manager or environment variable). You won't be able to view it again.