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GET
/
v1
/
dashboard
/
billing
/
usage
Get usage
curl --request GET \
  --url https://openp.ai/v1/dashboard/billing/usage
import requests

url = "https://openp.ai/v1/dashboard/billing/usage"

response = requests.get(url)

print(response.text)
const options = {method: 'GET'};

fetch('https://openp.ai/v1/dashboard/billing/usage', 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://openp.ai/v1/dashboard/billing/usage",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://openp.ai/v1/dashboard/billing/usage"

	req, _ := http.NewRequest("GET", url, nil)

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.get("https://openp.ai/v1/dashboard/billing/usage")
  .asString();
require 'uri'
require 'net/http'

url = URI("https://openp.ai/v1/dashboard/billing/usage")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)

response = http.request(request)
puts response.read_body
Query the cumulative spend over a specified time range (in USD).

​
Request

curl "https://openp.ai/v1/dashboard/billing/usage?start_date=2026-05-01&end_date=2026-05-15" \
  -H "Authorization: Bearer $OPENPAI_API_KEY"

​
Query parameters

ParameterTypeRequiredDescription
start_datestring✅YYYY-MM-DD, inclusive of this day
end_datestring✅YYYY-MM-DD, exclusive of this day
Maximum span 100 days.

​
Response

{
  "object": "list",
  "total_usage": 12.43,
  "daily_costs": [
    {
      "timestamp": 1714521600,
      "line_items": [
        {"name": "gpt-5.5", "cost": 1.20},
        {"name": "gpt-5.5", "cost": 0.15}
      ]
    }
  ]
}
total_usage is in USD ×100 (i.e. 12.43 = $0.1243), consistent with OpenAI’s convention. However, the OpenPAI console / logs display in RMB; refer to the console for the exact conversion.

​
Finer granularity

For per-request logs, use Console → Logs, or the dedicated API: 
curl "https://openp.ai/api/log/self?page=1&page_size=50" \
  -H "Authorization: Bearer $OPENPAI_USER_TOKEN"
It returns, for each call: model, tokens, latency, charge, Request ID, IP and more.

​
Client compatibility

NextChat / ChatBox / LobeChat and others call this endpoint to display spend trends in their UI; OpenPAI fully supports it so the client “Account info” panel works.