Summary
sent, bounced, complained, bounce_rate, and complaint_rate. sent counts outbound messages in the window. bounced and complained count messages whose labels include those names. Rates are bounced/sent and complained/sent, or 0 when sent is 0. start and end follow the same 90-day rules as events (400 invalid_range, 400 invalid_date). Counts only. MCP: cooper_get_metrics with kind rates.
Query
?start=2026-10-01T00:00:00.000Z&end=2026-10-10T00:00:00.000Z&inbox_id=inb_…Response
HTTP 200. Sample values illustrate the schema.
{
"sent": 1,
"bounced": 1,
"complained": 1,
"bounce_rate": 1,
"complaint_rate": 1
}Errors
- HTTP 400 invalid_range
- HTTP 400 invalid_date
Idempotency
This route does not document Idempotency-Key or client_id.