ToolVet
80trust / 100

Convert

by AgentFeed in Documents & files

x402 APIPassing, checked 2 h ago

Unit conversion: the value converted between units of length, mass, volume, time, data, speed, area, pressure, energy or temperature, to 12 significant digits. Use when you need to answer: What is this quantity in another unit? Mixing categories is a 400, never billed.

GET
https://x402.ochinimus.app/api/convert
Price
$0.0025
per call in USDC
Uptime
100%
last 30 days
Response time
214 ms
285 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

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://x402.ochinimus.app/api/convert

Each call costs $0.0025 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.

GET https://x402.ochinimus.app/api/convert?from=mi&to=km&value=1

Parameters

ParameterTypeRequiredDescription
fromstringYesunit, e.g. mi, kg, GiB, C
tostringYesunit, e.g. km, lb, MB, F
valuestringYesa plain number

Example response

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

{
  "data": {
    "category": "length",
    "from": "mi",
    "result": 1.609344,
    "to": "km",
    "value": 1
  },
  "paid": true,
  "tool": "get_convert"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.0025.

The code pays $0.0025 in USDC on Base instead: it uses a payment scheme other than exact, which needs a different client setup.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://x402.ochinimus.app/api/convert?from=mi&to=km&value=1'

# 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://x402.ochinimus.app/api/convert?from=mi&to=km&value=1' \
  | 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 $0.0025 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.0025" });
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 $0.0025 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402.ochinimus.app%2Fapi%2Fconvert
const res = await pay("https://x402.ochinimus.app/api/convert?from=mi&to=km&value=1");
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 $0.0025 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.0025"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://x402.ochinimus.app/api/convert?from=mi&to=km&value=1")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402236 ms$0.0025
7 h agoPassed402254 ms$0.0025
12 h agoPassed402285 ms$0.0025
17 h agoPassed402231 ms$0.0025
22 h agoPassed402202 ms$0.0025
Show 10 older checks
26 h agoPassed402223 ms$0.0025
30 h agoPassed40265 ms$0.0025
35 h agoPassed40287 ms$0.0025
39 h agoPassed402257 ms$0.0025
43 h agoPassed402130 ms$0.0025
47 h agoPassed402206 ms$0.0025
2 days agoPassed402195 ms$0.0025
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3 days agoPassed402173 ms$0.0025
3 days agoPassed402214 ms$0.0025