Chart Annotations API

The Chart Annotations API lets you programmatically annotate important dates like feature releases and marketing campaigns on your organization's charts with a horizontal axis of calendar dates.

Get more examples for this API

Run our Postman Collection for a full library of example requests and responses for this API.

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/annotations
EU Residency Server	https://analytics.eu.amplitude.com/api/2/annotations

Create annotation¶

Creates an annotation with the specified parameters.

POST /api/2/annotations?app_id=yourAppID&date=YYYY-MM-DD&label=yourLabel&chart_id=yourChartID&details=yourDetails HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Create annotation query parameters¶

Parameter	Description
`app_id`	Required. Integer. The Project ID of the project your chart belongs to.
`date`	Required. Date. Date (YYYY-MM-DD) of the annotation.
`label`	Required. String. The title of your annotation.
`chart_id`	Optional. String. The ID of the chart (found in URL) to annotate. If you don't include a `chart_id`, the annotation is global and appears on all charts in the project.
`details`	Optional. String. Details for the annotation.

Create annotation response¶

{
        "annotation": 
    {
        "date": "2023-09-16", 
        "details": "Added new user properties.", 
        "id": 50079, 
        "label": "Version 2.4 Release"
        } 
        "success": true
}

Get all chart annotations¶

Retrieves all chart annotations in your project.

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

Get all chart annotations response¶

A successful response returns a list of chart annotations in the project.

{
    "data": [
        {
            "id": 160419,
            "date": "2021-09-01",
            "label": "First September",
            "details": "My annotation"
        },
        {
            "id": 160427,
            "date": "2021-09-01",
            "label": "Annotation 2",
            "details": "Another annotation"
        },
        {
            "id": 160507,
            "date": "2021-09-25",
            "label": "Annotation 3",
            "details": "Chart annotation"
        },
        {
            "id": 160508,
            "date": "2021-09-30",
            "label": "Annotation 4",
            "details": "Made another annotation"
        }
    ]
}

Get chart annotation¶

Retrieve a single chart annotation, by ID.

GET /api/2/annotations?id=160427 HTTP/1.1
Host: amplitude.com
Authorization: Basic {{api-key}}:{{secret-key}}

Get chart annotation query parameters¶

Name	Description
`id`	Required. Annotation ID.

Get chart annotation response¶

A successful response returns the chart annotation's data.

{
    "data": [

        {
            "id": 160427,
            "date": "2022-01-31",
            "label": "Chart Annotation 1",
            "details": "This is a chart annotation"
        }
    ]
}