# Fixed reference example. Playground inputs do not update this sample.
curl --request POST \
--url https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '[
{
"id": "09101923-1535-0216-0000-2389a8854b70",
"url": "https://dataforseo.com/",
"keyword_length": 2,
"filters": [
"frequency",
">",
5
]
}
]'curl --request POST \
--url https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
[
{
"id": "09101923-1535-0216-0000-2389a8854b70",
"url": "https://dataforseo.com/",
"keyword_length": 2,
"filters": [
"frequency",
">",
5
]
}
]
'import requests
url = "https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density"
payload = [
{
"id": "09101923-1535-0216-0000-2389a8854b70",
"url": "https://dataforseo.com/",
"keyword_length": 2,
"filters": ["frequency", ">", 5]
}
]
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify([
{
id: '09101923-1535-0216-0000-2389a8854b70',
url: 'https://dataforseo.com/',
keyword_length: 2,
filters: ['frequency', '>', 5]
}
])
};
fetch('https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
[
'id' => '09101923-1535-0216-0000-2389a8854b70',
'url' => 'https://dataforseo.com/',
'keyword_length' => 2,
'filters' => [
'frequency',
'>',
5
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density"
payload := strings.NewReader("[\n {\n \"id\": \"09101923-1535-0216-0000-2389a8854b70\",\n \"url\": \"https://dataforseo.com/\",\n \"keyword_length\": 2,\n \"filters\": [\n \"frequency\",\n \">\",\n 5\n ]\n }\n]")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("[\n {\n \"id\": \"09101923-1535-0216-0000-2389a8854b70\",\n \"url\": \"https://dataforseo.com/\",\n \"keyword_length\": 2,\n \"filters\": [\n \"frequency\",\n \">\",\n 5\n ]\n }\n]")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "[\n {\n \"id\": \"09101923-1535-0216-0000-2389a8854b70\",\n \"url\": \"https://dataforseo.com/\",\n \"keyword_length\": 2,\n \"filters\": [\n \"frequency\",\n \">\",\n 5\n ]\n }\n]"
response = http.request(request)
puts response.read_body{
"version": "<string>",
"status_code": 123,
"status_message": "<string>",
"time": "<string>",
"cost": 123,
"tasks_count": 123,
"tasks_error": 123,
"tasks": [
{
"id": "<string>",
"status_code": 123,
"status_message": "<string>",
"time": "<string>",
"cost": 123,
"result_count": 123,
"path": [
"<string>"
],
"data": {},
"result": [
{
"crawl_progress": "<string>",
"crawl_status": {
"max_crawl_pages": 123,
"pages_in_queue": 123,
"pages_crawled": 123
},
"total_items_count": 123,
"items_count": 123,
"items": [
{
"keyword": "<string>",
"frequency": 123,
"density": 123
}
]
}
]
}
]
}Keyword Density
Word and phrase frequency across a crawl, with keyword_length choosing n-gram size.
# Fixed reference example. Playground inputs do not update this sample.
curl --request POST \
--url https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '[
{
"id": "09101923-1535-0216-0000-2389a8854b70",
"url": "https://dataforseo.com/",
"keyword_length": 2,
"filters": [
"frequency",
">",
5
]
}
]'curl --request POST \
--url https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
[
{
"id": "09101923-1535-0216-0000-2389a8854b70",
"url": "https://dataforseo.com/",
"keyword_length": 2,
"filters": [
"frequency",
">",
5
]
}
]
'import requests
url = "https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density"
payload = [
{
"id": "09101923-1535-0216-0000-2389a8854b70",
"url": "https://dataforseo.com/",
"keyword_length": 2,
"filters": ["frequency", ">", 5]
}
]
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify([
{
id: '09101923-1535-0216-0000-2389a8854b70',
url: 'https://dataforseo.com/',
keyword_length: 2,
filters: ['frequency', '>', 5]
}
])
};
fetch('https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
[
'id' => '09101923-1535-0216-0000-2389a8854b70',
'url' => 'https://dataforseo.com/',
'keyword_length' => 2,
'filters' => [
'frequency',
'>',
5
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density"
payload := strings.NewReader("[\n {\n \"id\": \"09101923-1535-0216-0000-2389a8854b70\",\n \"url\": \"https://dataforseo.com/\",\n \"keyword_length\": 2,\n \"filters\": [\n \"frequency\",\n \">\",\n 5\n ]\n }\n]")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("[\n {\n \"id\": \"09101923-1535-0216-0000-2389a8854b70\",\n \"url\": \"https://dataforseo.com/\",\n \"keyword_length\": 2,\n \"filters\": [\n \"frequency\",\n \">\",\n 5\n ]\n }\n]")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "[\n {\n \"id\": \"09101923-1535-0216-0000-2389a8854b70\",\n \"url\": \"https://dataforseo.com/\",\n \"keyword_length\": 2,\n \"filters\": [\n \"frequency\",\n \">\",\n 5\n ]\n }\n]"
response = http.request(request)
puts response.read_body{
"version": "<string>",
"status_code": 123,
"status_message": "<string>",
"time": "<string>",
"cost": 123,
"tasks_count": 123,
"tasks_error": 123,
"tasks": [
{
"id": "<string>",
"status_code": 123,
"status_message": "<string>",
"time": "<string>",
"cost": 123,
"result_count": 123,
"path": [
"<string>"
],
"data": {},
"result": [
{
"crawl_progress": "<string>",
"crawl_status": {
"max_crawl_pages": 123,
"pages_in_queue": 123,
"pages_crawled": 123
},
"total_items_count": 123,
"items_count": 123,
"items": [
{
"keyword": "<string>",
"frequency": 123,
"density": 123
}
]
}
]
}
]
}keyword_length choosing n-gram size. Returns total_items_count, items_count and items. Measured at 611 bytes. Reads a finished crawl, so it needs the id from post_dataforseo_on_page_submit and returns crawl_progress plus a crawl_status of max_crawl_pages, pages_in_queue and pages_crawled - check those before trusting a small result, because a crawl still running simply has less to report. This describes what a site says about itself; for what the web says about it use post_dataforseo_backlinks_anchors_live, and for what people search use post_dataforseo_keywords_gads_search_volume_live. ## Example
curl -X POST "https://api.aisa.one/apis/v1/dataforseo/on_page/keyword_density" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '[{"id": "...", "keyword_length": "...", "url": "..."}]'
// Copy this whole block into Claude Code, Codex, Cursor or any coding agent.
// It carries everything needed to connect, authorize and run this example —
// no key to paste, one click of Allow in the browser.
{
"operation_id": "post_dataforseo_on_page_keyword_density",
"arguments": {},
"max_price_usd": 0.05
}
// ── for the agent ─────────────────────────────────────────────────────────
// Register the AIsa MCP server, then call its `use` tool with the JSON above.
// name aisa
// endpoint https://mcp.aisa.one/mcp
// transport streamable-http
// auth OAuth. The server publishes RFC 9728 metadata, so open a
// browser and the user clicks Allow once — nothing to paste.
// If AISA_API_KEY is set, send it as a bearer header instead.
// Use your own MCP mechanism, not a hand-edited config file:
// Codex codex mcp add aisa --url https://mcp.aisa.one/mcp
// Claude Code claude mcp add --transport http -s user aisa https://mcp.aisa.one/mcp
// Cursor / VS Code a "url" entry for https://mcp.aisa.one/mcp in the MCP config
// The server lists five tools over https://mcp.aisa.one/servers worth of APIs:
// search, get_details, use, batch_use, list_categories. search and
// get_details are free; use is billed per call and max_price_usd refuses
// anything above the cap before spending. This operation's full contract —
// every argument, the response shape, the price and the pitfalls — is at
// https://aisa.one/docs/api-reference/dataforseo/post_dataforseo-on-page-keyword-density.md
// Then run the call and show me the result.
https://mcp.aisa.one/mcp — Claude
Code, Codex, Cursor, VS Code and the rest. Authorization is OAuth: the client
opens a browser, you click Allow once, and there is no key to paste. The
commands per client, and what each call costs, are on
aisa.one/mcp.Cost and request rules
Published reference values are not an account-specific quote or a settled charge. For endpoints supporting X-AISA-Cost-Mode: quote, obtain a free quote for your exact request before execution; reconcile the settled cost with response metadata and Usage Logs. USD amounts use 1,000,000 integer micro-USD per dollar.- Default request reference estimate (USD): 0.012
- Cost contract: response_usd
- Published reference multiplier: 1.0
- Settlement evidence source: response_body
Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Body
number of words for a keyword
required field
possible values:1, 2, 3, 4, 5
page URL
optional field
if you do not specify a page here, the results will be provided for the whole website
if you use this field, the API response will contain only keywords from the specified page
a page should be specified with absolute URL (including http:// or https://)
the maximum number of returned keywords
optional field
default value: 100
maximum value: 1000
array of results filtering parameters
optional field
you can add several filters at once (8 filters maximum)
you should set a logical operator and, or between the conditions
the following operators are supported:regex, not_regex, =, <>, in, not_in, like, not_like
you can use the % operator with like and not_like to match any string of zero or more characters
example:["keyword","=","%seo%"]
[["keyword","=","%seo%"],"and",["frequency","<","6"]]
[["keyword","not_like","%seo%"],"and",[["frequency",">","6"],"or",["density",">","0.02"]]]
The full list of possible filters is available by this link.
results sorting rules
optional field
you can use the same values as in the filters array to sort the results
possible sorting types:asc - results will be sorted in the ascending orderdesc - results will be sorted in the descending order
you should use a comma to set up a sorting type
example:["frequency,desc"]
note that you can set no more than three sorting rules in a single request
you should use a comma to separate several sorting rules
example:["keyword,asc","frequency,desc"]
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
[ { "id": "09101923-1535-0216-0000-2389a8854b70", "url": "https://dataforseo.com/", "keyword_length": 2, "filters": ["frequency", ">", 5] } ]
Response
Successful operation
the current version of the API
general status code you can find the full list of the response codes here
general informational message you can find the full list of general informational messages here
total execution time, seconds
total tasks cost, USD
the number of tasks in the tasks array
the number of tasks in the tasks array returned with an error
array of tasks
Show child attributes
Show child attributes