initiateMfaVerification - Coinbase Developer Documentation

function initiateMfaVerification(options: InitiateMfaVerificationOptions): Promise<void>;

Initiates an MFA verification flow for operations requiring MFA. This endpoint should be called when a user attempts a sensitive operation (like transaction signing) but doesn’t have a valid MFA-verified session. For TOTP, this prepares a verification session. For SMS, this sends a 6-digit OTP code to the user’s enrolled phone number.

Parameters

Parameter	Type	Description
`options`	`InitiateMfaVerificationOptions`	The options for initiating MFA verification.

Returns

Promise<void> A promise that resolves if MFA initiation is successful.

Example

// TOTP verification
await initiateMfaVerification({ mfaMethod: "totp" });
// Prompt user for code from authenticator app

// SMS verification
await initiateMfaVerification({ mfaMethod: "sms" });
// SMS sent to user's phone - prompt for code