429 and a Retry-After header with the number of seconds until the window resets.
Retry-After seconds. Do not hammer the endpoint — wait, then resume at a steady rate.
What is limited
Thev1-api limit applies to every operation in the v1 group: stacks, sources, website monitors, incidents, overrides, and the rest of the documented v1 surface.
GET /health and /sso/discover are unversioned and are not part of that group.
MCP limits
MCP connections have two caps:- Per connection: 60 requests per minute by default across all authenticated MCP endpoints. The refusal is a JSON-RPC error
-32000. - Per caller: an additional 120 requests per minute on the MCP routes, returned as
{ "message": "..." }.
429 responses are documented on each MCP endpoint.
Practical guidance
- Cache list responses when you poll for dashboard-style views.
- Prefer webhooks or the MCP tools for event-driven work instead of tight polling loops.
- If you need a higher sustained rate, contact support@statusstack.com.

