curl --request GET \
  --url https://nano-gpt.com/api/v1/usage \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://nano-gpt.com/api/v1/usage"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://nano-gpt.com/api/v1/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://nano-gpt.com/api/v1/usage",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($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://nano-gpt.com/api/v1/usage"

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://nano-gpt.com/api/v1/usage")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://nano-gpt.com/api/v1/usage")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "object": "usage",
  "apiKey": {
    "id": 123
  },
  "from": "2026-05-01",
  "to": "2026-05-31",
  "timezone": "UTC",
  "groupBy": "day,model",
  "asOf": "2026-05-31T12:00:00.000Z",
  "source": {
    "rollupDays": [
      "2026-05-01"
    ],
    "liveDays": [
      "2026-05-31"
    ],
    "missingRollupDays": []
  },
  "totals": {
    "requests": 1284,
    "costUsd": 42.18,
    "refundedUsd": 1.25,
    "netCostUsd": 40.93,
    "inputTokens": 1234567,
    "outputTokens": 456789,
    "reasoningTokens": 12000,
    "totalTokens": 1691356,
    "date": "2026-05-01",
    "model": "GPT-4.1 mini"
  },
  "byDay": [
    {
      "requests": 1284,
      "costUsd": 42.18,
      "refundedUsd": 1.25,
      "netCostUsd": 40.93,
      "inputTokens": 1234567,
      "outputTokens": 456789,
      "reasoningTokens": 12000,
      "totalTokens": 1691356,
      "date": "2026-05-01",
      "model": "GPT-4.1 mini"
    }
  ],
  "byModel": [
    {
      "requests": 1284,
      "costUsd": 42.18,
      "refundedUsd": 1.25,
      "netCostUsd": 40.93,
      "inputTokens": 1234567,
      "outputTokens": 456789,
      "reasoningTokens": 12000,
      "totalTokens": 1691356,
      "date": "2026-05-01",
      "model": "GPT-4.1 mini"
    }
  ],
  "byDayModel": [
    {
      "requests": 1284,
      "costUsd": 42.18,
      "refundedUsd": 1.25,
      "netCostUsd": 40.93,
      "inputTokens": 1234567,
      "outputTokens": 456789,
      "reasoningTokens": 12000,
      "totalTokens": 1691356,
      "date": "2026-05-01",
      "model": "GPT-4.1 mini"
    }
  ]
}

{
  "error": {
    "message": "from and to must use YYYY-MM-DD UTC dates.",
    "type": "invalid_request_error"
  }
}

{
  "error": {
    "message": "from and to must use YYYY-MM-DD UTC dates.",
    "type": "invalid_request_error"
  }
}

{
  "error": {
    "message": "from and to must use YYYY-MM-DD UTC dates.",
    "type": "invalid_request_error"
  }
}

{
  "error": {
    "message": "from and to must use YYYY-MM-DD UTC dates.",
    "type": "invalid_request_error"
  }
}

{
  "error": {
    "message": "from and to must use YYYY-MM-DD UTC dates.",
    "type": "invalid_request_error"
  }
}