Start free for the public Code Card Library. Choose Code Card Pro when you want a more powerful personal workspace, and choose an API plan only when you need programmatic access for tools, applications, or production integrations.
Code Card Pro pays for website power-user features such as higher account-card limits and workspace export. API plans are separate subscriptions for programmatic access and request capacity. The public library remains useful on Free, and you can hold Code Card Pro and an API plan at the same time.
Checkout and subscription management are hosted by Stripe. Code Card Library does not collect card numbers in its own forms.