- Sign in at platform.openai.com → Settings → API keys.
- Click Create new secret key → copy it and store securely (you can set key permissions if needed). (platform.openai.com)
- Go to Settings → Billing → Overview.
- Click Add payment details and add a standard credit/debit card.
- Choose $5 as the initial credit purchase → Confirm. (Minimum prepaid purchase is $5.) (OpenAI Help Center)
- In Billing → Overview, confirm your Credits balance shows ~$5 available. (OpenAI Help Center)
- Never share the key; create separate keys per person.
- Rotate/delete keys after the session. (OpenAI Help Center)
That’s it—key created and $5 budget loaded.