Choose subscription or API billing
Chat subscriptions and API usage are separate products. Paying for Claude Pro or ChatGPT Plus does not automatically fund API calls.
Claude plans
For Claude web and eligible Claude Code sign-in routes.
Open Claude upgradeIf your goal is an API key, continue to Guide 03 and fund the API Console instead.
Prepare the payment card and billing identity
A virtual card is still a payment card. It must be legally issued to you or your organization, support the merchant and transaction type, and use truthful billing details.
Support can explain fields and failure messages. Never send a full card number, CVV, password or one-time verification code through chat.
Complete payment only on the official domain
Sign in yourself, open Billing from the product settings, check the plan and renewal terms, then enter payment details directly into the provider checkout.
Manage ChatGPT billing
Official explanation of where web subscription billing lives.
Read official billing guideClaude Help Center
Use the official help center if the payment status is unclear.
Open Anthropic supportVerify the result before closing the page
A successful card authorization is not the only proof. Confirm the product state, billing record and account ownership.