Account Management
Why do I need to create an account?
An account is required to use the J-Quants API. After logging in with your created account, you will be able to retrieve sample data and purchase plans.
Is there a fee to create an account?
Creating an account is free.
I forgot my password.
Please reset your password at the password reset page. If you signed up with Google, no password is required for either website login or data retrieval.
I'm not receiving the MFA authentication code by email.
Please check the following:
- Check your spam/junk mail folder
- Verify your email client and domain settings allow emails from no-reply@jpx-jquants.com
- The authentication code expires after 10 minutes. If expired, use the 'Resend confirmation code' button on the login screen
- Switching to an authenticator app (TOTP) avoids email delays (configurable from Profile screen » Multi-Factor Authentication (MFA) Settings)
MFA (multi-factor authentication) is required. Can I disable it?
MFA cannot be disabled as it is required for security. Please note the following:
- By default, Email OTP is configured — a 6-digit code is automatically sent to your registered email address at login
- Email subject: 「【J-Quants API】多要素認証コードのご案内 / Your Multi-Factor Authentication Code」
- Sender: no-reply@jpx-jquants.com
- To switch to an authenticator app (TOTP such as Google Authenticator), go to 'Multi-Factor Authentication (MFA) Settings' on the Profile screen in the dashboard
Can I change my email address?
You can change your email address from the Profile screen in the dashboard after signing in. However, changing from a Google-linked account to an email/password account is not supported by the system.
I accidentally registered with a corporate email address. Can I delete my account?
You can withdraw by clicking 'Proceed with withdrawal' at the bottom of the Profile screen in your dashboard.
My account was automatically cancelled after one year of using a free plan. Will my account be deleted?
Free plans are automatically cancelled after one year, but your account will not be deleted. To delete your account, please use the profile page after signing in.