Quotas and limits

The following auth operations have limitations on the frequency you can perform them. These limitations can change without notice. Contact Google Cloud support to discuss special use cases.

Account creation and deletion limits

Operation Limit
New account creation 100 accounts/IP address/hour
Account deletion 10 accounts/second

Accounts per project

Account type Limit
Anonymous user accounts 100 million
Registered user accounts Unlimited

Providers per project or tenant

There is no limit on the number of identity providers allowed per project or tenant.

Email limits

Operation Limit
Address verification emails 100,000 emails/day
Address change emails 10,000 emails/day
Password reset emails 10,000 emails/day
Email link sign-in emails 25,000 emails/day
Operation Limit
Address verification links 1,000,000 emails/day
Password reset links 100,000 emails/day
Sign-in links 250,000 emails/day

Phone number sign-in limits

Operation Limit
User sign-ins See Pricing
Verification code SMS messages 50 messages/IP address/minute, 500 messages/IP address/hour
Verification requests 150 requests/IP address/hour