ToolVet
61trust / 100

Slow Motion

by Video & Timecode Calc in Other

x402 APIPassing, checked 3 h ago

Slow-motion factor from capture and playback fps, output duration for real seconds, and capture fps needed.

GET
https://video-calc.x402tookit.com/slow-motion
Price
$0.02
per call in USDC
Uptime
64.3%
last 30 days
Response time
525 ms
600 ms slowest 5%
Last check
Passed
3 h ago, next in 4 h

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

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

How to call it

GET https://video-calc.x402tookit.com/slow-motion

Each call costs $0.02 in USDC on Polygon, 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.

GET https://video-calc.x402tookit.com/slow-motion?captureFps=120&playbackFps=24&realSeconds=2

Parameters

ParameterTypeRequiredDescription
captureFpsnumberYesFrame rate the camera records at
playbackFpsnumberNoTimeline or playback frame rate (default 24)
realSecondsnumberNoSeconds of real action recorded, to get the playback length
wantedSlowFactornumberNoInstead: the slow factor you want (for example 4), to get the fps to shoot

Example response

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

{
  "asOf": "2026-10-12T00:51:08.483Z",
  "captureFps": 120,
  "degraded": false,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "framesRecorded": 240,
  "notChecked": [
    "whether the camera can record at that rate at your resolution",
    "motion-blur and shutter settings (see /shutter-angle)",
    "…1 more"
  ],
  "playbackFps": 24,
  "playbackSeconds": 10,
  "realSeconds": 2,
  "reasons": [
    "Slow factor = capture fps / playback fps = 5."
  ],
  "slowFactor": 5,
  "source": "computed locally (ratio of frame rates)",
  "speedPercent": 20,
  "summary": "120 fps played at 24 fps is 5x slow motion (overcranked); 2 s of action lasts 10 s.",
  "verdict": "SLOW_MOTION"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://video-calc.x402tookit.com/slow-motion?captureFps=120&playbackFps=24&realSeconds=2'

# 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 - 'https://video-calc.x402tookit.com/slow-motion?captureFps=120&playbackFps=24&realSeconds=2' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fvideo-calc.x402tookit.com%2Fslow-motion
const res = await pay("https://video-calc.x402tookit.com/slow-motion?captureFps=120&playbackFps=24&realSeconds=2");
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://video-calc.x402tookit.com/slow-motion?captureFps=120&playbackFps=24&realSeconds=2")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402574 ms$0.02
15 h agoPassed402518 ms$0.02
46 h agoExpected HTTP 402, got 530530117 ms-
3 days agoExpected HTTP 402, got 530530142 ms-
4 days agoExpected HTTP 402, got 530530134 ms-
Show 9 older checks
5 days agoExpected HTTP 402, got 530530173 ms-
5 days agoExpected HTTP 402, got 530530167 ms-
5 days agoPassed402589 ms$0.02
5 days agoPassed402525 ms$0.02
6 days agoPassed402600 ms$0.02
6 days agoPassed402530 ms$0.02
6 days agoPassed402484 ms$0.02
6 days agoPassed402496 ms$0.02
7 days agoPassed402400 ms$0.02