ToolVet
75trust / 100

Media Audio Convert

by Relaystation Audio Convert in Documents & files

x402 APIPassing, checked 3 h ago

$0.0005/MB. Re-encode audio to another format, bitrate, or sample rate — mp3, aac, wav, flac and more. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

POST https://api.relaystation.ai/v1/media/audio-convert

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
354 ms typical, 703 ms slowest 5%
Last check
3 h ago
Next check
any minute now

How to call it

POST https://api.relaystation.ai/v1/media/audio-convert

Each call costs $0.01 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.relaystation.ai/v1/media/audio-convert
content-type: application/json

{
  "bitrate": "string",
  "file": {},
  "format": "mp3",
  "sampleRate": 8000
}

Parameters

ParameterTypeRequiredDescription
bitratestringNo
fileobjectNocputools input-source: { inline: <base64 ≤ 4 MiB> } or { inputKey: <scratch key ≤ 50 MB> }. The input container must sniff (ffprobe) to the live allowlist (operator-tunable cputools.media.input_formats): 3g2, 3gp, aac, asf, avi, flac, flv, gif, m4a, m4v, matroska, mj2, mov, mov,mp4,m4a,3gp,3g2,mj2,…
formatstringNo One of: mp3, m4a, aac, wav, ogg, flac.
sampleRateintegerNo

Example response

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

{
  "ok": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.relaystation.ai/v1/media/audio-convert' \
  -H 'content-type: application/json' \
  --data-raw '{"bitrate":"string","file":{},"format":"mp3","sampleRate":8000}'

# 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.relaystation.ai/v1/media/audio-convert' \
  -H 'content-type: application/json' \
  --data-raw '{"bitrate":"string","file":{},"format":"mp3","sampleRate":8000}' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.relaystation.ai%2Fv1%2Fmedia%2Faudio-convert&method=POST
const res = await pay("https://api.relaystation.ai/v1/media/audio-convert", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "bitrate": "string",
    "file": {},
    "format": "mp3",
    "sampleRate": 8000
  }),
});
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
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.relaystation.ai/v1/media/audio-convert",
        json={
            "bitrate": "string",
            "file": {},
            "format": "mp3",
            "sampleRate": 8000,
        },
    )
    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
3 h agoPassed402758 ms$0.01
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