why i always get data: { error: 403 }?

API Spot/Margin API
,
1 
const axios = require("axios");
const BASE_URL = "https://api.binance.com";

async function getPrices(symbol) {
  try {
    const res = await axios.get(`${BASE_URL}/api/v3/klines`, {
      params: { symbol, interval: "1m", limit: 100 },
    });

    return res.data.map((c) => parseFloat(c[4]));
  } catch (err) {
    console.dir(err, { depth: null });
    return [];
  }
}

getPrices("DOGEUSDT");

i’m always getting data: { error: 403 }

17533736735325422251793428384515
175337367353254222517934283845154080×1824 2.28 MB

2

Hi @Zam-J_Id, are those 403s happening regularly or permanently? Have you checked if your IP is rate limited, due to a spam of requests?

3

data: { error: 403 }

because Binance is blocking your request — and this usually happens due to missing headers, incorrect domain, or rate-limiting! Binance’s public REST API requires a proper User-Agent header for some endpoints (especially /api/v3/klines) so… your current code is missing that.

Working Solution:

const axios = require(“axios”);
const BASE_URL = “https://api.binance.com”;

async function getPrices(symbol) {
try {
const res = await axios.get(${BASE_URL}/api/v3/klines, {
headers: {
“User-Agent”: “Mozilla/5.0”,
},
params: {
symbol,
interval: “1m”,
limit: 100,
},
});

return res.data.map((c) => parseFloat(c[4])); // Closing price

} catch (err) {
console.dir(err.response?.data || err, { depth: null });
return ;
}
}

getPrices(“DOGEUSDT”).then((prices) => console.log(prices));

Hope it will helps!! Where you see square where it says return, in my code , you must replace the square with: brackets (left square bracket and right square bracket) but without space between them.