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GET
/
v0
/
kpis
Get KPIs (sessions, pageviews, bounce rate, session duration)
curl --request GET \
  --url https://api.formo.so/v0/kpis \
  --header 'Authorization: Bearer <token>'
{
  "meta": [
    {
      "name": "date",
      "type": "Date"
    },
    {
      "name": "project_id",
      "type": "String"
    },
    {
      "name": "sessions",
      "type": "UInt64"
    },
    {
      "name": "pageviews",
      "type": "UInt64"
    },
    {
      "name": "bounce_rate",
      "type": "Float64"
    },
    {
      "name": "avg_session_sec",
      "type": "Float64"
    }
  ],
  "data": [
    {
      "date": "2025-10-15",
      "project_id": "proj_abc",
      "sessions": 412,
      "pageviews": 1187,
      "bounce_rate": 0.31,
      "avg_session_sec": 142.6
    },
    {
      "date": "2025-10-16",
      "project_id": "proj_abc",
      "sessions": 487,
      "pageviews": 1402,
      "bounce_rate": 0.28,
      "avg_session_sec": 156.2
    },
    {
      "date": "2025-10-17",
      "project_id": "proj_abc",
      "sessions": 533,
      "pageviews": 1610,
      "bounce_rate": 0.26,
      "avg_session_sec": 168.4
    }
  ],
  "rows": 3,
  "rows_before_limit_at_least": 3,
  "statistics": {
    "elapsed": 0.041,
    "rows_read": 12340,
    "bytes_read": 482310
  }
}
Returns the same KPI series that powers the Formo dashboard’s overview chart. Here visitors is the per-day session count (the overview’s Sessions card), while unique_users (and unique_users_current / unique_users_previous) are unique anonymous visitors (the overview’s Visitors card), returned only when include_previous_period=true and no group_by is set. Use group_by to break results down by referrer, location, device, browser, os, or any UTM dimension. Set include_previous_period=true to also receive the equivalent prior window for week-over-week comparisons.

Authorizations

​
Authorization
string
header
required

Workspace API key (e.g. formo_xxx). Create one in the Formo dashboard under Team Settings > API Keys.

Query Parameters

​
date_from
string<date>

Inclusive start date (YYYY-MM-DD). Defaults to 7 days before date_to.

​
date_to
string<date>

Inclusive end date (YYYY-MM-DD). Defaults to today.

​
group_by
enum<string>

Dimension to break down by

Available options:
referrer,
location,
device,
browser,
os,
utm_source,
utm_medium,
utm_campaign
​
limit
integer
​
include_previous_period
boolean

Return current and previous period for WoW comparison

Response

KPI time-series

Analytics endpoint response. The data array contains the rows; the exact row shape depends on the endpoint. meta carries column type information for rendering, rows is the row count, and statistics holds query timing metadata.

​
data
object[]
​
meta
object[]
​
rows
integer
​
rows_before_limit_at_least
integer
​
statistics
object