Step 2 of signup. Completes the flow started by POST /v1/account/send-otp. Pass the verificationId from that response and the one-time code from email. On success this creates the trial account and returns a live API key (sk_live_...) plus a companion sandbox API key (sk_test_...) when one was minted. Store both securely — they cannot be retrieved later. First-time users without a key yet must start at send-otp; existing users create extra sandbox keys via POST /v1/api-keys/create-sandbox.

<span>⚡ <strong>Rate limit:</strong> 12 requests per 1 minute</span>

<span>💰 <strong>Cost:</strong> FREE! No credits are charged for this API. <span title="Pricing shown is default pricing. Actual pricing may vary.">ⓘ</span></span>