Token count · Token Count

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/token-count", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "model": "gpt-4o",
    "text": "hello world"
  }),
});
const data = await res.json();

curl -X POST \
  "https://agent402.tools/api/token-count" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-4o","text":"hello world"}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "characters": 11,
  "encoding": "o200k_base",
  "model": "gpt-4o",
  "tokens": 2
}