Smart Home quotas and limits

Google Smart Home limits resource allocation and use and enforces appropriate quotas on a per-project basis. Specific policies vary depending on resource availability, user profile, service usage history, and other factors, and are subject to change without notice.

HomeGraph API limits

This section lists the rate limits for the HomeGraph API. These limits apply to both the REST and RPC API.

To request an increase in quota, see Working with quotas.

Quota Limit Can be increased
RequestSync (synchronous mode) Maximum of 1 concurrent request per agentUserId. No
RequestSync (asynchronous mode) Default limit of 10,000 requests per 100 seconds per Actions project. See note above. Yes
Query Default limit of 10,000 requests per 100 seconds per Actions project. See note above. Yes
Sync Default limit of 10,000 requests per 100 seconds per developer. See note above. Yes
Delete Default limit of 10,000 requests per 100 seconds per Actions project. See note above. Yes
ReportStateAndNotification Default limit of 10,000 requests per 100 seconds per Actions project. See note above. Yes