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AI Keyword Data Keyword Search Volume

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This endpoint provides search volume data for your target keywords, reflecting their estimated usage in AI tools.

For each specified keyword, you will get AI search volume rate for the last month and AI search volume trend for the previous 12 months. The AI search volume values are calculated using statistical data from questions in the ‘People Also Ask’ SERP element.

Instead of ‘login’ and ‘password’ use your credentials from https://app.dataforseo.com/api-access

<?php
// You can download this file from here https://cdn.dataforseo.com/v3/examples/php/php_RestClient.zip
require('RestClient.php');
$api_url = 'https://api.dataforseo.com/';
// Instead of 'login' and 'password' use your credentials from https://app.dataforseo.com/api-access
$client = new RestClient($api_url, null, 'login', 'password');

$post_array = array();
// simple way to set a task
$post_array[] = array(
    "language_name" => "English",
    "location_code" => 2840,
    "keywords" => [
        "iphone",
        "seo"
    ]
);
try {
   // POST /v3/ai_optimization/ai_keyword_data/keywords_search_volume/live
   $result = $client->post('/v3/ai_optimization/ai_keyword_data/keywords_search_volume/live', $post_array);
   print_r($result);
   // do something with post result
} catch (RestClientException $e) {
   echo "n";
   print "HTTP code: {$e->getHttpCode()}n";
   print "Error code: {$e->getCode()}n";
   print "Message: {$e->getMessage()}n";
   print  $e->getTraceAsString();
   echo "n";
}
$client = null;
?>

The above command returns JSON structured like this:

{
  "version": "0.1.20250526",
  "status_code": 20000,
  "status_message": "Ok.",
  "time": "0.3281 sec.",
  "cost": 0,
  "tasks_count": 1,
  "tasks_error": 0,
  "tasks": [
    {
      "id": "07091646-1535-0619-0000-34aa8225bd23",
      "status_code": 20000,
      "status_message": "Ok.",
      "time": "0.2683 sec.",
      "cost": 0,
      "result_count": 1,
      "path": [
        "v3",
        "ai_optimization",
        "ai_keyword_data",
        "keywords_search_volume",
        "live"
      ],
      "data": {
        "api": "ai_optimization",
        "function": "keywords_search_volume",
        "language_name": "English",
        "location_code": 2840,
        "keywords": [
          "iphone",
          "seo"
        ]
      },
      "result": [
        {
          "location_code": 2840,
          "language_code": "en",
          "items_count": 2,
          "items": [
            {
              "keyword": "iphone",
              "ai_search_volume": 407838,
              "ai_monthly_searches": [
                {
                  "year": 2025,
                  "month": 5,
                  "ai_search_volume": 407838
                },
                {
                  "year": 2025,
                  "month": 4,
                  "ai_search_volume": 413611
                },
                {
                  "year": 2025,
                  "month": 3,
                  "ai_search_volume": 641232
                },
                {
                  "year": 2025,
                  "month": 2,
                  "ai_search_volume": 634043
                },
                {
                  "year": 2025,
                  "month": 1,
                  "ai_search_volume": 650448
                },
                {
                  "year": 2024,
                  "month": 12,
                  "ai_search_volume": 420931
                },
                {
                  "year": 2024,
                  "month": 11,
                  "ai_search_volume": 466601
                },
                {
                  "year": 2024,
                  "month": 10,
                  "ai_search_volume": 460579
                },
                {
                  "year": 2024,
                  "month": 9,
                  "ai_search_volume": 439763
                },
                {
                  "year": 2024,
                  "month": 8,
                  "ai_search_volume": 0
                },
                {
                  "year": 2024,
                  "month": 7,
                  "ai_search_volume": 0
                },
                {
                  "year": 2024,
                  "month": 6,
                  "ai_search_volume": 0
                }
              ]
            },
            {
              "keyword": "seo",
              "ai_search_volume": 13881,
              "ai_monthly_searches": [
                {
                  "year": 2025,
                  "month": 5,
                  "ai_search_volume": 13881
                },
                {
                  "year": 2025,
                  "month": 4,
                  "ai_search_volume": 13560
                },
                {
                  "year": 2025,
                  "month": 3,
                  "ai_search_volume": 14628
                },
                {
                  "year": 2025,
                  "month": 2,
                  "ai_search_volume": 13789
                },
                {
                  "year": 2025,
                  "month": 1,
                  "ai_search_volume": 14339
                },
                {
                  "year": 2024,
                  "month": 12,
                  "ai_search_volume": 13520
                },
                {
                  "year": 2024,
                  "month": 11,
                  "ai_search_volume": 14802
                },
                {
                  "year": 2024,
                  "month": 10,
                  "ai_search_volume": 14640
                },
                {
                  "year": 2024,
                  "month": 9,
                  "ai_search_volume": 13564
                },
                {
                  "year": 2024,
                  "month": 8,
                  "ai_search_volume": 0
                },
                {
                  "year": 2024,
                  "month": 7,
                  "ai_search_volume": 0
                },
                {
                  "year": 2024,
                  "month": 6,
                  "ai_search_volume": 0
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}

All POST data should be sent in the JSON format (UTF-8 encoding). The task setting is done using the POST method. When setting a task, you should send all task parameters in the task array of the generic POST array. You can send up to 2000 API calls per minute. The maximum number of requests that can be sent simultaneously is limited to 30.

Below you will find a detailed description of the fields you can use for setting a task.

Description of the fields for setting a task:

Field name Type Description
keywords array keywords
required field
UTF-8 encoding
The maximum number of keywords you can specify: 1000
The keywords will be converted to lowercase format

learn more about rules and limitations of keyword and keywords fields in DataForSEO APIs in this Help Center article

location_name string full name of the location
required field if you don’t specify location_code
Note: it is required to specify either location_name or location_code
you can receive the list of available locations with their location_name by making a separate request to the
https://api.dataforseo.com/v3/ai_optimization/ai_keyword_data/locations_and_languages
example:
United Kingdom
location_code integer unique location identifier
required field if you don’t specify location_name
Note: it is required to specify either location_name or location_code
you can receive the list of available locations with their location_code by making a separate request to the
https://api.dataforseo.com/v3/ai_optimization/ai_keyword_data/locations_and_languages
example:
2840
language_name string full name of the language
required field if you don’t specify language_code
if you use this field, you don’t need to specify language_code
you can receive the list of available languages with their language_name by making a separate request to the
https://api.dataforseo.com/v3/ai_optimization/ai_keyword_data/locations_and_languages
example:
English
language_code string language code
required field if you don’t specify language_name
if you use this field, you don’t need to specify language_name
you can receive the list of available languages with their language_code by making a separate request to the
https://api.dataforseo.com/v3/ai_optimization/ai_keyword_data/locations_and_languages
example:
en
tag string user-defined task identifier
optional field
the character limit is 255
you can use this parameter to identify the task and match it with the result
you will find the specified tag value in the data object of the response

As a response of the API server, you will receive JSON-encoded data containing a tasks array with the information specific to the set tasks.

Description of the fields in the results array:

Field name Type Description
version string the current version of the API
status_code integer general status code
you can find the full list of the response codes here
Note: we strongly recommend designing a necessary system for handling related exceptional or error conditions
status_message string general informational message
you can find the full list of general informational messages here
time string execution time, seconds
cost float total tasks cost, USD
tasks_count integer the number of tasks in the tasks array
tasks_error integer the number of tasks in the tasks array returned with an error
tasks array array of tasks
        id string task identifier
unique task identifier in our system in the UUID format
        status_code integer status code of the task
generated by DataForSEO; can be within the following range: 10000-60000
you can find the full list of the response codes here
        status_message string informational message of the task
you can find the full list of general informational messages here
        time string execution time, seconds
        cost float cost of the task, USD
        result_count integer number of elements in the result array
        path array URL path
        data object contains the same parameters that you specified in the POST request
        result array array of results
            location_code integer location code in a POST array
            language_code string language code in a POST array
            items_count integer number of results returned in the items array
            items array contains specified keywords with their AI search volume rates
                keyword string specified keyword
                ai_search_volume integer current AI search volume rate of a keyword
                ai_monthly_searches array monthly AI search volume rates
array of objects with AI search volume rates in a certain month of a year
                    year integer year
                    month integer month
                    ai_search_volume integer AI search volume rate in a certain month of a year

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