Get inbox response-time stats

Time-to-first-response stats. Pairs each received message with the next sent message in the same conversation and reports the delta as both summary statistics and a fixed-bucket histogram suited for the analytics page's TTR chart.

sampleSize reflects only conversations that received AND got a reply in the window — received-but-never-answered conversations are excluded. Compare against /v1/analytics/inbox/volume's summary.received to compute reply rate.

Max date range is 365 days.

import Zernio from '@zernio/node';const zernio = new Zernio({ apiKey: process.env.ZERNIO_API_KEY });const { data } = await zernio.inboxanalytics.getInboxResponseTime({  query: {    fromDate: '2026-01-15',  },});console.log(data);

{
  "success": true,
  "from": "2019-08-24",
  "to": "2019-08-24",
  "summary": {
    "sampleSize": 0,
    "medianSeconds": 0,
    "p90Seconds": 0,
    "p99Seconds": 0,
    "meanSeconds": 0,
    "fastestSeconds": 0,
    "slowestSeconds": 0
  },
  "histogram": [
    {
      "bucket": "string",
      "lowerSeconds": 0,
      "upperSeconds": 0,
      "count": 0
    }
  ]
}

{
  "error": "string",
  "details": {}
}

{
  "error": "Unauthorized"
}

{
  "error": "string",
  "details": {}
}