• Use your checkout email

  Sign in with the same address you used on the Stripe Payment Link.

• Your plan is waiting

  Standard or Pro access is tied to that email once you sign in.

• Manage your API key

  Create and rotate keys anytime from Settings after you sign in.

• Start building

  Estimate, calculate, and the rates ticker are ready in the docs.

Prefer to skim first? Read the API docs