curl "https://api.metastreams.io/v1/wallets/balances?wallets=7YttLkHDoNj9wyDur5pM1ejNaAvT9X4eqaYcHQqtj2G5&chains=solana" \
  -H "Authorization: Bearer $API_KEY"

const url = new URL("https://api.metastreams.io/v1/wallets/balances");
url.searchParams.set("wallets", "7YttLkHDoNj9wyDur5pM1ejNaAvT9X4eqaYcHQqtj2G5");
url.searchParams.set("chains", "solana");

const response = await fetch(url, {
  headers: { Authorization: `Bearer ${process.env.API_KEY}` },
});
if (!response.ok) throw new Error(`HTTP ${response.status}`);
const { balances } = await response.json();

use serde_json::Value;

let response: Value = reqwest::Client::new()
    .get("https://api.metastreams.io/v1/wallets/balances")
    .query(&[("wallets", "7YttLkHDoNj9wyDur5pM1ejNaAvT9X4eqaYcHQqtj2G5"), ("chains", "solana")])
    .bearer_auth(std::env::var("API_KEY")?)
    .send()
    .await?
    .error_for_status()?
    .json()
    .await?;
let balances = &response["balances"];

{
  "balances": [
    {
      "chain": "solana",
      "wallet": "7YttLkHDoNj9wyDur5pM1ejNaAvT9X4eqaYcHQqtj2G5",
      "asset": "SOL",
      "balance": "41.208113",
      "trigger": "trade",
      "blockNumber": 371204118,
      "signature": "4xQmVb8e2kT1nR7pZcW3sLdHfA9jEuY6gVnX1oB5iC0wQ2rT8yU3iO7pA1sD4fG6h",
      "txIndex": 812,
      "updatedAt": 1789632015120
    }
  ]
}

{
  "balances": []
}