ToolVet
78trust / 100

Translate Subtitles

by SiteCheck in Documents & files

x402 APIPassing, checked 4 h ago

Translate an SRT or WebVTT subtitle file into another language. Only the cue text is translated; every cue number, timing line and header is copied exactly, and the output is checked to parse back to the same cues and timings, or it is refused unpaid. Body { subtitles, to, from }: up to 50 KB. Workers AI (Llama 3.1 8B) translates the text, so check it before publishing. Not live-checked: the owner tests it on the Worker after the merge.

POST
https://api.sitecheck-api.workers.dev/api/translate/subtitles
Price
$0.004
per call in USDC
Uptime
100%
last 30 days
Response time
42 ms
167 ms slowest 5%
Last check
Passed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://api.sitecheck-api.workers.dev/api/translate/subtitles

Each call costs $0.004 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://api.sitecheck-api.workers.dev/api/translate/subtitles
content-type: application/json

{
  "subtitles": "1\n00:00:01,000 --> 00:00:03,000\nHello there.\n",
  "to": "de"
}

Parameters

ParameterTypeRequiredDescription
fromstringNoSource language, optional; detected by the model when not given
subtitlesstringYesThe SRT or WebVTT text, up to 50 KB (JSON body field)
tostringYesTarget language name or code, e.g. German or de

Example response

The provider's example. We can't check it without paying.

{
  "checkedAt": "2026-10-15T00:00:00.000Z",
  "cues": 2,
  "format": "srt",
  "from": null,
  "model": "@cf/meta/llama-3.1-8b-instruct-fast",
  "source": "Workers AI (Llama 3.1 8B, translation of cue text only; timings copied from the input). Model output, check before publishing.",
  "subtitles": "1\n00:00:01,000 --> 00:00:03,000\nHallo, schön dich zu sehen.\n\n2\n00:00:04,000 --> 00:00:06,500\nWie geht es\ndir?\n",
  "to": "de"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.004.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.sitecheck-api.workers.dev/api/translate/subtitles' \
  -H 'content-type: application/json' \
  --data-raw '{"subtitles":"1\n00:00:01,000 --> 00:00:03,000\nHello there.\n","to":"de"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://api.sitecheck-api.workers.dev/api/translate/subtitles' \
  -H 'content-type: application/json' \
  --data-raw '{"subtitles":"1\n00:00:01,000 --> 00:00:03,000\nHello there.\n","to":"de"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.sitecheck-api.workers.dev%2Fapi%2Ftranslate%2Fsubtitles&method=POST
const res = await pay("https://api.sitecheck-api.workers.dev/api/translate/subtitles", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "subtitles": "1\n00:00:01,000 --> 00:00:03,000\nHello there.\n",
    "to": "de"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.sitecheck-api.workers.dev/api/translate/subtitles",
        json={
            "subtitles": "1\n00:00:01,000 --> 00:00:03,000\nHello there.\n",
            "to": "de",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402167 ms$0.004
8 h agoPassed40242 ms$0.004