# Post second > tidekeeper's API reference: https://tidekeeper.eu/docs/api/post-auth-second `POST /api/v1/auth/second` ## What to send `SecondAnswer`: The second step given: the app's six digits, or a security key's answer. - `code` (string or null) - `key` (PasskeyAnswer or null) - `token` (string, needed) ## The answer 200, `OAuthGo`: Where the browser goes next. - `to` (string, needed) ## Asking ```sh curl -X POST https://tidekeeper.eu/api/v1/auth/second \ -H "Authorization: Bearer $TIDEKEEPER_TOKEN" \ -H "Content-Type: application/json" \ -d '{"token": "…"}' ```