[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-08-18。"],[],[],null,["The following auth operations have limitations on the frequency you can perform\nthem. Contact\nFirebase\na few weeks in advance\nto discuss special use cases.\n| **Note:** Limitations apply per customer and can change without notice. Abuse protections may be enabled without warning on accounts that demonstrate suspicious traffic patterns.\n\nDaily Instrumentless Usage Limits\n\nThe following limits are daily usage limits for users of\nFirebase Authentication with Identity Platform on the no-cost Spark plan.\n\nThese usage limits correspond directly to\n[Google Cloud Pricing Tiers](https://cloud.google.com/identity-platform/pricing).\n\n| Usage | Instrumentless Limit |\n|---------------------------|----------------------|\n| Tier 1 Daily Active Users | 3000 per day |\n| Tier 2 Daily Active Users | 2 per day |\n\nAccount creation and deletion limits\n\n| Operation | Limit |\n|-------------------------------|---------------------------------------|\n| New account creation | 100 accounts/hour for each IP address |\n| Account deletion | 10 accounts/second |\n| Batch account deletion | 1 request/second |\n| Account configuration updates | 10 requests/second |\n\n| **Note:** You can schedule a temporary increase to the account creation limit in the Firebase console\n\nAccount limits\n\n| Account type | Limit |\n|--------------------------|-------------|\n| Anonymous user accounts | 100 million |\n| Registered user accounts | Unlimited |\n\nEmail sending limits\n\nThe quotas listed in this section scale with the number of users.\n\n| Operation | Spark plan limit | Blaze plan limit |\n|-----------------------------|------------------|--------------------|\n| Address verification emails | 1000 emails/day | 100,000 emails/day |\n| Address change emails | 1000 emails/day | 10,000 emails/day |\n| Password reset emails | 150 emails/day | 10,000 emails/day |\n| Email link sign-in emails | 5 emails/day | 25,000 emails/day |\n\n| **Note:** The limits for email link sign-in emails were recently changed. Please add a billing instrument to go beyond 5 email link sign-in emails.\n\nEmail link generation limits\n\nThe quotas listed in this section scale with the number of users.\n\n| Operation | Spark plan limit | Blaze plan limit |\n|----------------------------|------------------|---------------------|\n| Address verification links | 10,000 links/day | 1,000,000 links/day |\n| Password reset links | 1500 links/day | 100,000 links/day |\n| Sign-in links | 20,000 links/day | 250,000 links/day |\n\nPhone number sign-in limits\n\n| Operation | Limit |\n|--------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------|\n| User sign-ins | 1600/minute, as well as the pricing and limits specified on the [Pricing](/pricing) page |\n| Verification code SMS messages | Pay as you go (Blaze) plan only. - Firebase Authentication: 3000 sent SMS/day limit - Firebase Authentication with Identity Platform: No limit |\n| Verification requests | 150 requests/IP address/hour |\n\nVerification SMS sending limits\n\n| Operation | Limit |\n|--------------------------------------|-------------------------------|\n| Verification SMS sent. | 1,000 sent/minute |\n| Verification SMS sent per IP address | 50 sent/minute, 500 sent/hour |\n\nAdditionally, there is a limit on the number of verification SMS messages a project\ncan send to a single phone number within a set amount of time. You can test with [fictional numbers](https://firebase.google.com/docs/auth/android/phone-auth#test-with-fictional-phone-numbers) or\nacross multiple devices to ensure a project does not exceed these limits.\n\nAdditionally, you can track verification codes sent per phone number if you've enabled\n[Activity Logging](/identity-platform/docs/activity-logging) on your project.\n\nIdentity Toolkit API limits\n\n| Operation | Limit |\n|----------------------------------------------|-----------------------------------------------|\n| Operations per service account | 500 requests/second |\n| Operations per project | 1000 requests/second, 10 million requests/day |\n| Account uploads per project\\* | 3600 uploads/minute |\n| Account downloads per project\\* | 21,000 requests/minute |\n| UserInfo queries per project\\* | 900 requests/minute |\n| Configuration updates per project\\* | 300 requests/minute |\n| Configuration updates per project and user\\* | 300 requests/minute |\n| Bulk delete accounts per project\\* | 3000 requests/minute |\n| Custom token sign-ins per project | 45,000 sign-ins/minute |\n| `createAuthURI` calls per IP address | 120 requests/hour |\n| Blocking function invocations per project | 2000 requests/minute |\n| `GetAccountInfo` per project\\* | 500,000 requests/minute |\n\n\\* Admin-only operations.\n\nThe `fetchProvidersForEmail()` and [`fetchSignInMethodsForEmail(email)`](https://firebase.google.com/docs/reference/js/auth.md#fetchsigninmethodsforemail) methods leverage the `createAuthURI` endpoint.\n\nToken Service API limits\n\n| Operation | Limit |\n|----------------------------|-------------------------|\n| Token exchange per project | 18,000 exchanges/minute |"]]
