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 |
Email link generation limits
| 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 | 1600/project/minute, as well as the pricing and limits specified on the Pricing page |
| Verification code SMS messages | 50 messages/IP address/minute, 500 messages/IP address/hour, 1500 messages/project/minute |
| Verification requests | 150 requests/IP address/hour |