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Dashboard REST API

You can get data that's displayed on the dashboard graphs in JSON format via the Dashboard REST API. Learn more about dashboards in the Amplitude Help Center.

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Authorization

This API uses Basic Auth, using the API key and secret key for your project. Pass your API key in the request header like {{api-key}}:{{secret-key}}. api-key replaces username, and secret-key replaces the password.

See Find your Amplitude Project API Credentials for help locating your credentials.

Endpoints

Region Endpoint
Standard Server https://amplitude.com/api/2/
EU Residency Server https://analytics.eu.amplitude.com/api/2/

Considerations

  • You may have to URL encode special characters in the names of event types, event properties, and user properties. For example, encode Play Song as Play%20Song. Use the W3Schools encoding reference for help.
  • Some examples in this article use backslash syntax to escape characters when using cURL. If you aren't using cURL, then don't encode your request with backslash escape characters.
  • The Dashboard REST API is based on your project's time zone in Amplitude.

Rate limits

For each endpoint, there is a concurrent limit and a rate limit. The concurrent limit restricts the number of requests you can run at the same time. The rate limit restricts the total number of queries you can run per hour. Exceeding these limits returns a 429 error. These limits are per project, and the 429 error also includes information on how you are exceeding the limit.

Concurrent Limit: You can run up to 5 concurrent requests across all Amplitude REST API endpoints, including cohort download.

User activity/user search limits

You can run up to 360 queries per hour for user activity and user search endpoints. The User Activity and User Search endpoints have a different rate limit than all other request types.

All other endpoints

All other endpoints use cost per query model. Amplitude calculates cost based on this formula:

cost = (# of days) * (# of conditions) * (cost for the query type)

Here is how Amplitude determines each variable in the formula:

  • Number of days: This is the number of days in the query.
  • Number of conditions: This is the number of segments plus the number of conditions within the segments applied to the chart you are looking at. Each group by counts as 4 segments.
Simple query cost example

This configuration generates a cost of 10 because in has one segment (by Any Users, cost of one), one condition (Language = English, cost of one), and two group by values (Country and Platform, cost of four each) applied. Filters on events don't count in this section. screenshot of an event with one segment, one condition, and two group by values

Funnel analysis cost example

This chart generates a cost of 1800. This is calculated with cost = 30 * 10 * 6.

The chart covers 30 days, one segment (Any Users, cost of one) with one condition (iOS, cost of one), two group bys (City and Paying cost of four each), multiplied by three events in the funnel (Search Song or Video, Play Song or Video, Share Song or Video; cost of six).

a chart with a 30 day period, one segment, one condition, two group bys, and three events in the funnel

Different chart types have different costs. For all endpoints not listed here, the cost is 1. Here are the limits for these endpoints, measured in the cost per query:

  • Concurrent Limit: Up to 1000 cost at the same time.

  • Rate Limit: Up to 108,000 cost per hour.

  • Event Segmentation: Equal to the number of events you are looking at in the left module. If any event has a group by, add a cost of 4 per group by and event.

  • Funnel Analysis: The number of events you are looking at in the funnel multiplied by two. If any event has a group by, add a cost of 4 per group by and event.
  • Retention Analysis: The cost for this chart is 8.
  • User Sessions: The cost for this chart is 4.

Shared query parameters

These query parameters are shared across several Dashboard REST API endpoints.

Notes about query parameters

  • For built-in Amplitude properties, valid values are version, country, city, region, DMA, language, platform, os, device, device_type, start_version, and paying.
  • For custom user properties, the key should be formatted as gp:name.
Parameter Description
e A full event with optional property filters or group by. Events are represented as JSON objects as described in event format.
s Segment definitions. Include as many as needed. Segments are represented as JSON arrays, where each element is a JSON object corresponding to a filter condition as described segment definition.
g The property to group by, for example platform. Available only when there is a single segment. Limit: two.

Event format

The event parameter can include these keys:

Name
 Description
event_type Required. The event type.
For custom events, prefix the name with ce:. For example: "ce:name").
For '[Amplitude] Any Active Event', use _active.
For '[Amplitude] Any Event', use _all.
For '[Amplitude] Revenue', use revenue_amount.
For '[Amplitude] Revenue (Verified)', use verified_revenue.
For '[Amplitude] Revenue (Unverified)', use unverified_revenue.
filters Optional. A list of property filters. Each filter is a JSON object with the following keys:
subprop_type Required. Either "event" or "user", indicating that the property is either an event or user property, respectively.
subprop_key Required. The name of the property to filter on. Note: For non-Amplitude, custom user properties, prepend the user property name with gp:. gp: isn't needed for event properties.
subprop_op Required. The operator for filtering on specific property values, either is, is not, contains, does not contain, less, less or equal, greater, greater or equal, set is, or set is not.
subprop_value: Required. A list of values to filter the event property by.
group_by Optional. A list of properties to group by (at most 2). Each group by is a JSON object with these keys:
type (required) - Either "event" or "user", indicating that the property is either an event or user property, respectively.
value (required) - The name of the property to group by.

Event format example

{
    "event_type": "CompletedProfile",
    "filters": [
        {
            "subprop_type": "event",
            "subprop_key": "EmailVerified",
            "subprop_op": "is",
            "subprop_value": ["true"]
        },
        {
            "subprop_type": "user",
            "subprop_key": "gp:SignUpDate",
            "subprop_op": "is",
            "subprop_value": ["2021-08-18"]
        },
    "group_by": [
        {
            "type": "user",
            "value": "platform"
        }
    ]
}

Segment definition

Name Description
prop Required. The name of the property to filter on. For behavioral cohorts, the name of the property is userdata_cohort.
Example ("XYXxxzz" is the identifier from the Behavioral Cohort's URL, https://analytics.amplitude.com/org_name/cohort/XYXxxzz.)
s=\[\{"prop":"userdata_cohort","op":"is","values":\["XYXxxzz"\]\}\]
op Required. The operator for filtering on specific property values. Allowed values are is, is not, contains, does not contain, less, less or equal, greater, greater or equal, set is, or set is not.
values Required. A list of values to filter the segment by. If you are segmenting by a cohort, the value is the cohort ID, found in URL of the cohort in the web app (for example, "5mjbq8w").

Segment definition example

[
    {
        "prop": "version",
        "op": "contains",
        "values": ["1.0", "2.0"]
    },
    {
        "prop": "gp:gender",
        "op": "is",
        "values": ["female"]
    }
]

Get results from an existing chart

Get JSON results from any saved chart via chart ID. GET https://amplitude.com/api/3/chart/chart_id/query

Example request

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GET /api/3/chart/:chart_id/query HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Path variables

Name Description
chart_id Required. The chart's ID. Get the chart ID from the chart's URL in the web app. For example, 'abc123' in this URL: https://analytics.amplitude.com/demo/chart/abc123).

Response

Responses vary based on the chart's type.

Get active and new user counts

Get the number of active or new users.

GET https://amplitude.com/api/2/users

Example request

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GET /api/2/users?start=20210101&end=20210901&m=active&i=30&g=city HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Name Description
start Required. First date included in data series, formatted YYYYMMDD. For example, "20221001".
end Required. Last date included in data series, formatted YYYYMMDD. For example, "20221001".
m Optional. Either "new" or "active" to get the desired count. Defaults to "active".
i Optional. Either 1, 7, or 30 for daily, weekly, and monthly counts, respectively. Defaults to 1.
s Optional. Segment definitions. Defaults to none. Defined in Shared query parameters.
g Optional. The property to group by. Defaults to none. Defined in Shared query parameters

Response

The response is a JSON object with this schema:

Attribute
 Description
series An array with one element for each group, in the same order as "seriesMeta", where each element is itself an array that has the value of the metric on each of the days specified in xValues.
seriesMeta An array of labels with one for each segment.
xValues An array of (string) dates in the form "YYYY-MM-DD", one for each date in the specified range. 
{
    "data": {
        "series": [ 
            [46109, 47542],
            [42845, 42626]
        ],
        "seriesMeta": ["United States", "Canada"],
        "xValues": ["2017-08-14", "2017-08-15"]
    }
}

Get session length distribution

Get the number of sessions for each pre-defined length ("bucket") period during a specified date range.

GET https://amplitude.com/api/2/sessions/length

Example request

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GET /api/2/sessions/length?start=20210426&end=20210905&timeHistogramConfigBinTimeUnit=minutes&timeHistogramConfigBinMin=0&timeHistogramConfigBinMax=10 HTTP/1.1
Host: amplitude.com

Query parameters

Name
 Description
start Required. First date included in data series, formatted YYYYMMDD. For example,"20221001".
end Required. Last date included in data series, formatted YYYYMMDD. For example,"20221001".
timeHistogramConfigBinTimeUnit Optional. Time unit for bucket sizes (see below for valid inputs).
timeHistogramConfigBinMin Optional. Minimum value for bucketing, as a number. For example, "0".
timeHistogramConfigBinMax Optional. Maximum value for bucketing, as a number. For example, "600".
timeHistogramConfigBinSize Optional. Size of each bucket, as a number. For example, "60".

timeHistogramConfigBin format

timeHistogramConfigBinTimeUnit is any of ['hours', 'minutes', 'seconds'].

To take advantage of custom binning, you must specify timeHistogramConfigBinMin, timeHistogramConfigBinMax, and timeHistogramConfigBinTimeUnit. When timeHistogramConfigBinSize isn't specified, Amplitude tries to find the best bin sizing. For example, if you have timeHistogramConfigBinMin=0, timeHistogramConfigBinMax=10, and timeHistogramConfigBinTimeUnit=minutes, there is no guarantee for the final number of bins or bin bounds. If timeHistogramConfigBinSize=1 is specified, then there are 10 bins, and each bin size equals a minute.

When combined timeHistogramConfigBin parameters are invalid/missing, Amplitude defaults to use default bins that are chosen because they approximate certain behaviors such as bounce rate. These bins are (in milliseconds): [0, 3000), [3000, 10,000), [10,000, 30,000), [30,000, 60,000), [60,000, 180,000), [180,000, 600,000), [600,000, 1,800,000), [1,800,000, 3,600,000), [3,600,000, 86,400,000).

Session lengths have a max length of 1 day (86,400,000 ms).

Response

The response is a JSON object with this schema:

Attribute
 Description
series An array with one element which is itself an array that includes the counts (number of sessions) for each of the buckets.
xValues An array of the (string) session length intervals (buckets) of the format [bucketStartInSeconds]s-[bucketEndInSeconds]s. 
{
   "data": {
        "series": [ 
             [0, 120408, 2261, 6984, 10778, 54529, 210614, 336605, 196235, 54148] 
        ],
        "xValues": ["0s-60s", "60s-120s", "120s-180s", "180s-240s", "240s-300s", "300s-360s", "360s-420s", "420s-480s", "480s-540s", "540s-600s"]
    }
}

Get average session length

GET https://amplitude.com/api/2/sessions/average

Get the average session length (in seconds) for each day in the specified date range.

Example request

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GET /api/2/sessions/average?start=20210601&end=20210630 HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Name Description
start Required. First date included in data series, formatted YYYYMMDD (for example "20221001").
end Required. Last date included in data series, formatted YYYYMMDD (for example "20221004").

Response

Returns a JSON object with this schema:

Attribute Description
series An array with one element which is itself an array that includes the average session length for each day.
seriesMeta An array of labels with one for each segment.
segmentIndex This represents the index of the segment, referring to its position in the right module of the chart control panel.
xValues An array of (string) dates formatted like "YYYY-MM-DD" with one for each in the specified date range. 
{
    "data": {
        "series": [
            [1204.0238276716443, 1197.4160169086904],
        ],
        "seriesMeta": [
            {"segmentIndex": 0}
        ],
        "xValues": ["2017-08-14", "2017-08-15"]
    }
}

Get average sessions per user

GET https://amplitude.com/api/2/sessions/peruser

Get the average number of sessions per user on each day in the specified date range.

Example request

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GET /api/2/sessions/average?start=20210601&end=20210630
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Name Description
start Required. First date included in data series, formatted YYYYMMDD (for example "20221001").
end Required. Last date included in data series, formatted YYYYMMDD (for example "20221004").

Response

Returns a JSON object with this schema:

Attribute
 Description
series An array with one element which is itself an array that includes the (float) average number of sessions per user for each day.
seriesMeta An array of labels with one for each segment.
segmentIndex This represents the index of the segment, referring to its position in the right module of the chart control panel
xValues An array of (string) dates formatted like "YYYY-MM-DD" with one for each in the specified date range 
{
    "data": {
        "series": [
            [3.624536794878406, 3.6232302614435854]
        ], 
        "seriesMeta": [
            {"segmentIndex": 0}
        ], 
        "xValues": ["2017-08-14", "2017-08-15"]
    }
}

User composition

Get the distribution of users across values of a user property in the specified date range.

GET https://amplitude.com/api/2/composition

Example request

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GET /api/2/composition?start=20210601&end=20210630&p=platform HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Name Description
start Required. First date included in data series, formatted YYYYMMDD. For example, "20221001".
end Required. Last date included in data series, formatted YYYYMMDD. For example, "20221001".
p Required. The property to get the composition of. For built-in Amplitude properties, valid values are version, country, city, region, DMA, language, platform, os, device, start_version, and paying. For custom-defined user properties, format the key as gp:name.

Response

Returns a JSON object with this schema:

Attribute
 Description
series A one-element array which is the number of unique users who had the corresponding property value in the specified date range.
seriesLabels The field that displays what user property the chart is looking at.
xValues An array of values the chosen property can take on. 
{ 
    "data": {
        "series": [
            [69643, 47419, 38087, 19064]
        ], 
        "seriesLabels": ["version"], 
        "xValues": ["1.0", "(none)", "1.1", "0.2"]
     }
}

Get events list

Get the list of events with the current week's totals, uniques, and % DAU (daily active users).

GET https://amplitude.com/api/2/events/list

Example request

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GET /api/2/events/list HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Response

Returns a JSON object with this schema:

Attribute
 Description
non_active If the event is marked inactive or not.
value Name of the event in the raw data.
totals The total number of times the event has happened this week.
deleted If the event is deleted or not.
flow_hidden If the event is hidden from Pathfinder/Pathfinder Users or not.
hidden If the event is hidden or not.
display The display name of the event. 
{
    "data": [
        {
            "non_active": false, 
            "value": "Add Content to Cart", 
            "totals": 1505645, 
            "deleted": false, 
            "flow_hidden": false, 
            "hidden": false, 
            "display": "Add Content to Cart"
        }, 
        {
            "non_active": false, 
            "value": "Add Friends", 
            "totals": 193167, 
            "deleted": false,
            "flow_hidden": false, 
            "hidden": false, 
            "display": "Add Friends"
        }
    ]
    ...
}

Event segmentation

Get metrics for an event with segmentation.

Example request

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GET /api/2/events/segmentation?e={"event_type":"_active"}&start=20210801&end=20210831&n=any HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Remember that you may have to URL encode special characters in the names of event types, event properties, and user properties. For example, encode Play Song as Play%20Song.

Query parameters

Name
 Description
e Required. Include up to two. A full event. Full description. Note: Currently, the Dashboard REST API supports segmentation by up to two events. If you wish to query on a second event, the parameter would be "e2".
m Optional. Non-property metrics: uniques, totals, pct_dau, or average. Defaults to uniques. Property metrics: histogram, sums, or value_avg. To use property metrics, you must include a valid group by value in parameter e. For custom formulas: "formula" (Note: This metric only supports up to two events currently and the second event needs to have the parameter "e2").
n Optional. User type, either any or active.
start Required. First date included in data series, formatted YYYYMMDD. For example, "20221001".
end Required. Last date included in data series, formatted YYYYMMDD. For example, "20221001".
i Set to -300000, -3600000, 1, 7, or 30 for real-time, hourly, daily, weekly, and monthly counts, respectively. Defaults to 1. Real-time segmentation displays up to 2 days of data, hourly segmentation displays up to 7 days of data, and daily displays up to 365 days of data.
s Optional. Segment definitions (default: none). Full description.
g Optional. Include up to two. The property to group by. Defaults to none. Full description.
limit Optional. The number of Group By values returned (default: 100). The limit is 1000.
formula Optional, but required if m is set to formula. If you are using the custom formula metric, you will need to pass in the formula here (for example, UNIQUES(A)/UNIQUES(B)).
rollingWindow Required to use a rolling window. To include a rolling window, pass in the number of days/weeks/months with which to compute a rolling window over.
rollingAverage Required to use a rolling average. To include a rolling average, pass in the number of days/weeks/months with which to compute a rolling average over.

Response

Attribute
 Description
series An array with one element for each group, in the same order as "seriesLabels", where each element is itself an array that includes the value of the metric on each of the days specified in "xValues".
seriesLabels An array of labels, one for each group.
seriesCollapsed An array with one element for each group, in the same order as "seriesLabels", where each element is the value of the bar chart visualization in Event Segmentation. This value is the total unique users over a certain time interval.
xValues An array of (string) dates in the form "YYYY-MM-DD", one for each date in the specified range. 
{
    "data": {
        "series": [ 
            [273333], [190351]
        ],
        "seriesLabels": ["United States", "Germany"],
        "seriesCollapsed": [
            [
                {"value": 273333}
            ],
            [
                {"value": 190351}
            ],
        "xValues": ["2014-10-01", "2014-10-02"]
    }
}

Funnel analysis

Get funnel drop-off and conversion rates.

GET https://amplitude.com/api/2/funnels

Example request

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GET /api/2/funnels?e={"event_type":"Select%20Song%20or%20Video"}&e={"event_type":"Search%20Song%20or%20Video"}&e={"event_type":"Share%20Song%20or%20Video"}&start=20210801&end=20210926&mode=unordered&cs=3&limit=100 HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Name Description
e Required. A full event for each step in the funnel. Full description
start Required. First date included in data series, formatted YYYYMMDD. For example, 20221001.
end Required. Last date included in data series, formatted YYYYMMDD. For example, 20221001.
mode Optional. What mode to run the funnel in: ordered for events in the given order, unordered for events in any order, and sequential for events in the given order with no other events between. Defaults to ordered.
n Optional. Either "new" or "active" to specify what set of users to consider in the funnel. Defaults to active.
s Optional. Segment definitions. Defaults to none. Full description.
g Optional. The property to group by. Defaults to none. Full description.
cs Optional. The conversion window in seconds. Defaults to 2,592,000 (30 days). Conversion windows are automatically rounded down to the nearest day in "unordered" mode.
limit Optional. The number of Group By values returned Defaults to 100. The maximum is 1000.

Response

The response includes an array with one element per group. Each element has these fields:

Attribute
 Description
meta An array of labels with one for each segment.

segmentIndex This represents the index of the segment, referring to its position in the right module of the chart control panel.
stepTransTimeDistribution The histogram data of each step for how long it took users to convert through that step
stepPrevStepCountDistribution The histogram data for each step for how many times users performed the previous step.
bins Data for one histogram bucket. start and end are the start/end of the histogram bin, the data in bin_dist is the users/count/propsum for that histogram bin.
dayMedianTransTimes Median transition times by day between steps.
series An array with one element for each group, where each element is itself an array that includes the median transition time between steps in milliseconds on each of the days specified in "xValues".

xValues: An array of (string) dates in the form "YYYY-MM-DD", one for each date in the specified range. formattedXValues: An array of (string) dates in the form of "Month DD", one for each date in the specified range.
dayAvgTransTimes Average transition times by day between steps.

series An array with one element for each group, where each element is itself an array that includes the average transition time between steps in milliseconds on each of the intervals specified in "xValues".
xValues An array of (string) dates in the form "YYYY-MM-DD", one for each date in the specified range.
formattedXValues An array of (string) dates in the form of "Month DD", one for each date in the specified range.
stepByStep An array with one element for each step of the funnel, indicating the fraction of users from the previous step who completed that step.
medianTransTimes An array with one element for each step of the funnel, indicating the median transition time between steps in milliseconds.
cumulative An array with one element for each step of the funnel, indicating the fraction of the total users who completed that step.
cumulativeRaw An array with one element for each step of the funnel, indicating the number of users who completed that step.
avgTransTimes An array with one element for each step of the funnel, indicating the average transition time between steps in milliseconds.
dayFunnels Represents the number of users who completed each step of the funnel by day.

series An array with one element for each group, where each element is itself an array that includes the number of users who have completed that step in the funnel on each of the intervals specified in "xValues."
xValues An array of (string) dates in the form of "YYYY-MM-DD", one for each date in the specified range.
formattedXValues An array of (string) dates in the form of "Month DD", one for each date in the specified range
events Labels for each event in the funnel 
{
    "data": [
        {
            "meta": {"segmentIndex": 0},
            "dayMedianTransTimes": {
                "series": [
                    [0, 165548, 264380], [0, 164767, 269444]
                ],
                "xValues": ["2017-08-14", "2017-08-15"],
                "formattedXValues": ["Aug 14", "Aug 15"]
            },
            "dayAvgTransTimes": {
                "series": [
                    [0, 2294365, 5730478], [0, 2268879, 5700436]
                ],
                "xValues": ["2017-08-14", "2017-08-15"],
                "formattedXValues": ["Aug 14", "Aug 15"]
            },
            "stepByStep": [1.0, 0.9915120144246691, 0.9741139357951383],
            "medianTransTimes": [0, 166444, 270194],
            "cumulative": [1.0, 0.9915120144246691, 0.9658456707593803],
            "cumulativeRaw": [163054, 161670, 157485],
            "avgTransTimes": [0, 2175406, 5607243], 
            "dayFunnels": {
                "series": [
                    [125259, 123716, 118636], [126964, 125373, 119986]
                ],
                "xValues": ["2017-08-14", "2017-08-15"],
                "formattedXValues": ["Aug 14", "Aug 15"]
            },
            "events": ["Search Song or Video", "Select Song or Video", "Play Song or Video"]
        } 
    ]
}

Retention analysis

Get user retention for specific starting and returning actions.

GET https://amplitude.com/api/2/retention

Example request

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GET /api/2/retention?se={"event_type":"_active"}&re={"event_type":"watch_tutorial"}&start=20210801&end=20210831&s=[{"prop":"country","op": "is not","values": ["Netherlands", "United States"]}]&g=device_id HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Parameter Description
se Required. Full event for the start action. Supports two event_type values: _new for new users, and _active for all users.
re Required. Full event for the returning action. Supports one event_type value: _all for all events and _active for all active events.
rm Optional. The retention type: bracket, rolling, or n-day. Note that rolling implies unbounded retention. Defaults to n-day, no need to call it explicitly.
rb Optional, but required if rm is set to bracket. The days within each bracket, formatted [0,4]. For example, if your bracket was Day 0 - Day 4, the parameter value would be [0,5].
start Required. First date included in data series, formatted YYYYMMDD. For example, "20221001".
end Required. Last date included in data series, formatted YYYYMMDD. For example, "20221001".
i Optional. Either 1, 7, or 30 for daily, weekly, and monthly counts, respectively. Defaults to 1.
s Optional. Segment definitions. Defaults to none. Full description.
g Optional. Limit: one. The property to group by. Defaults to none. Full description.

Response

Attribute
 Description
series A JSON object containing two keys.

dates - An array of formatted string dates, one for each date in the specified range (in descending order).
values - A JSON object with one key for each date, where each value is an array whose n-th element corresponds to the retention for n intervals (days, weeks, or months depending on i) out. This is by each interval.
count The number of users retained in that interval.
outof The total number of users in the cohort (users who performed the starting action on the date), respectively.
incomplete Whether users in that date have had enough time to be retained.
combined A JSON object where each value is an array whose n-th element corresponds to the retention for n intervals (days, weeks, or months depending on i) out. This object is the deduplicated aggregate of all date cohorts from the values JSON object.
seriesMeta An array of labels with one for each segment.
segmentIndex This represents the index of the segment, referring to its position in the right module of the chart control panel.
eventIndex This represents the index of the event, referring to which event if you have many return events selected in the left module. 
{
    "data": {
        "series": [
            {
                "dates": ["Aug 15", "Aug 14"],
                "values": {
                    "Aug 14": [
                        {"count": 12864, "outof": 12864, "incomplete": false}, {"count": 9061, "outof": 12864, "incomplete": false}, ..., {"count": 1561, "outof": 12864, "incomplete": true}
                    ],
                    "Aug 15": [
                        {"count": 14720, "outof": 14720, "incomplete": false}, {"count": 10249, "outof": 14720, "incomplete": false}, ..., {"count": 1773, "outof": 14720, "incomplete": true}
                    ],
                },
                "combined": [
                    {"count": 27584, "outof": 27584, "retainedSetId": null, "incomplete": false},
                    {"count": 19310, "outof": 27584, "retainedSetId": null, "incomplete": false},
                    ...
                    {"count": 1561, "outof": 12864, "retainedSetId": null, "incomplete": true}
                ]
            },
        "seriesMeta": [
            {"segmentIndex": 0, "eventIndex": 0}
        ]
    } 
}

User activity

Get a user summary and their most (or least) recent events. Exceeding the request limits results in 429 errors.

GET https://amplitude.com/api/2/useractivity

Example request

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GET /api/2/useractivity?user=247246881751 HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Name Description
user Required. Amplitude ID of the user.
offset Optional. Zero-indexed offset to start returning events from.
limit Optional. Number of events to return (up to 1000). Note that more events may be returned so that there are no partial sessions. Defaults to 1000.
direction Optional. "earliest" to include the user's earliest event or "latest" to includes the most recent. Defaults to "latest".

Response

The response is a JSON object with this schema:

Attribute Description
events An array of JSON objects, one for each event performed by the user.
userData Total statistics about the user and their user properties. 
{
    "userData": {
        "user_id": "myusername",
        "canonical_amplitude_id": 12345,
        "merged_amplitude_ids": [11111, 22222],
        "num_events": 142,
        "num_sessions": 23,
        "usage_time": 2570259,
        "first_used": "2015-03-14",
        "last_used": "2015-04-22",
        "purchases": 2,
        "revenue": 9.98,
        "platform": "iOS",
        "os": "ios 8.2",
        "version": "3.4.9",
        "device": "Apple iPhone",
        "device_type": "Apple iPhone 6",
        "carrier": "AT&T",
        "country": "United States",
        "region": "California",
        "city": "San Francisco",
        "dma": "San Francisco-Oakland-San Jose, CA",
        "language": "English",
        "start_version": "1.2.3",
        "device_ids": ["somedevice", "someotherdevice"],
        "last_location": {
            "lat": 37.133,
            "lng": -122.241
        },
        "properties": {
            "gender": "female"
        }
    },
    "events": [...]
}

Search for a user with a specified Amplitude ID, device ID, user ID, or user ID prefix. Exceeding the request limits results in 429 errors.

GET https://amplitude.com/api/2/usersearch

Example request

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GET /api/2/usersearch?user=user_id HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Name Description
user Required. Amplitude ID, Device ID, User ID, or User ID prefix.

Returns

Attribute Description
matches An array of JSON objects, one for each matching user containing their Amplitude ID and User ID.
type Which match type (Amplitude ID, Device ID, User ID, User ID prefix) yielded the result. 
{
    "matches": [
        {
            "user_id": "myusername",
            "amplitude_id": 12345
        }
    ],
    "type": "match_user_or_device_id"
}

Real-time active users

Get active user numbers with minute granularity for the last two days.

GET https://amplitude.com/api/2/realtime

Example request

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GET /api/2/realtime?i=5 HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Name Description
i Optional. Time interval. The realtime endpoint accepts only 5. Defaults to 5.

Response

Returns a JSON object with this schema:

Attribute
 Description
xValues An array of (string) times in the form "HH:mm", one for each time interval in a day starting from the current time.
seriesLabels An array of two labels: "Today" and "Yesterday".
series An array with one element for each group, in the same order as "seriesLabels", where each element is itself an array that includes the value of the metric on each of the days specified in "xValues". 
{
    "data": {
        "xValues": ["15:00", "15:05", "15:10", ... ],
        "seriesLabels": ["Today", "Yesterday"],
        "series": [
            [123, 144, 101, ...],
            [139, 111, 180, ...]
        ]
    }
}

Revenue lifetime value (LTV)

Get the lifetime value of new users.

GET https://amplitude.com/api/2/revenue/ltv

Example request

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GET /api/2/revenue/ltv?start=20211201&end=20220301&i=30 HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Query parameters

Parameter Description
m Optional. One of the following metrics: 0 = average revenue per user (ARPU), 1 = average realized revenue per user (ARPPU), 2 = Total Revenue, 3 = Paying Users. Defaults to 0.
start Required. First date included in data series, formatted YYYYMMDD. For example, "20221001".
end Required. Last date included in data series, formatted YYYYMMDD. For example, "20221001".
i Optional. Either 1, 7, or 30 for daily, weekly, and monthly counts, respectively. Defaults to 1.
s Optional. Segment definitions. Defaults to none. Full description.
g Optional. Limit: one. The property to group by. Defaults to none. Full description.

Response

Returns a response containing JSON objects with this schema:

Attribute
 Description
seriesLabels An array of labels, one for each group.
series A JSON object containing two keys.
dates - An array of formatted string dates, one for each date in the specified range (in descending order).
values - A JSON object with one key for each date, where each value is a JSON object with keys r1d, r2d, ..., r90d for the n-day metric values, and the keys count, paid, and total_amount, which indicate the total number of users, number of paid users, and amount paid by the users for the group.		 
{
    "data": {
        "seriesLabels": [""],
        "series": [
            {
                "dates": ["2021-10-04", "2021-10-03", "2021-10-02", "2021-10-01"],
                "values": {
                    "2014-10-01": {
                        "r1d": 9.99,
                        "r2d": 19.98,
                        ...
                        "r90d": 742.52,
                        "count": 110,
                        "paid": 37,
                        "total_amount": 781.39
                    },
                    ...
                }
            }
        ]
    }
}