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Get hourly inbound SMS statistics

GET
/v1/sms/stats/inbound/hourly
const stats = await bird.sms.stats.inbound.hourly({
  from: "2026-05-30T00:00:00Z",
  to: "2026-05-31T00:00:00Z",
});
for (const point of stats.data ?? []) {
  console.log(point.bucket, point.received);
}
Response200
{
  "period": {
    "from": "2026-05-01T00:00:00Z",
    "to": "2026-05-31T00:00:00Z",
    "grain": "day",
    "data_as_of": "2026-05-25T14:03:10Z"
  },
  "data": [
    {
      "bucket": "2026-05-01T00:00:00Z",
      "received": 128
    }
  ]
}
Returns the number of messages your numbers received, one row per hour. Rows use the time the carrier received each message, and hours with no messages contain a zero count.
Each row contains only a count because a received message has one state. Use the outbound statistics endpoints for lifecycle and delivery-latency data about messages you send.
The maximum window is 720 hours; a longer range returns 422. Set timezone to bucket rows by your local hour instead of UTC.
Query Parameters
from
string
Start of the window (inclusive), an RFC 3339 instant truncated to the hour. Defaults to 7 days (168 hours) before to when omitted.
to
string
End of the window (inclusive), an RFC 3339 instant truncated to the hour. Defaults to the current hour when omitted. Window may not exceed 720 hours. A numeric UTC offset (for example +05:45) is rejected when timezone is set; pass a calendar day or a Z instant instead.
timezone
string
IANA timezone identifier used to group statistics, for example Asia/Kathmandu. The default is UTC. Day and hour boundaries, including the default window when from and to are omitted, follow this timezone. When this parameter is set, pass from and to as calendar days or Z instants instead of timestamps with explicit UTC offsets.
Response Payload
period
object
required
The window and bucket grain the response covers, echoed from the request, plus the freshness boundary the data is current to.
Show child attributes
period.from
string
required
Inclusive start of the window. A calendar day (YYYY-MM-DD) on the day grain, an RFC 3339 instant rounded to the hour on the hour grain.
period.to
string
required
Inclusive end of the window. A calendar day (YYYY-MM-DD) on the day grain, an RFC 3339 instant rounded to the hour on the hour grain.
period.grain
string
required
The bucket grain of the series, either day or hour.
Possible values: day, hour
period.data_as_of
nullable string
Latest time reflected in the statistics. More recent events might not be included yet. Null when the freshness boundary is unavailable.
data
array of object
required
One row per bucket (day or hour, per the grain) in the period, in chronological order. Buckets with no activity are included with a count of zero, so the series charts continuously without client-side gap handling.
Show child attributes
data.bucket
string
required
Start of the bucket this row covers, as a calendar day (YYYY-MM-DD) for the daily series or an hour boundary (RFC 3339) for the hourly one.
data.received
integer
required
Distinct messages received in this bucket, counted by the time the carrier received them.