ToolVet
75trust / 100

Calc Break Even

by ismec-agent-tools.ismec.workers.dev in Other

x402 APIPassing, checked 3 h ago

損益分岐点売上高・限界利益率・安全余裕率・目標利益達成売上高を、式の過程・前提つきで返す

POST
https://ismec-agent-tools.ismec.workers.dev/v1/calc/break-even
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
306 ms
563 ms slowest 5%
Last check
Passed
3 h ago, next any minute now

Run a free test callHow to call it

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

How to call it

POST https://ismec-agent-tools.ismec.workers.dev/v1/calc/break-even

Each call costs $0.01 in USDC on Base Sepolia, 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://ismec-agent-tools.ismec.workers.dev/v1/calc/break-even
content-type: application/json

{
  "fixedCost": 15000000,
  "sales": 50000000,
  "targetProfit": 3000000,
  "variableCostRatio": 0.6
}

Parameters

ParameterTypeRequiredDescription
fixedCostintegerYes固定費（円・整数）
salesintegerYes売上高（円・整数）
targetProfitintegerNo目標利益（円・整数）。−固定費以上
variableCostintegerNo変動費（円・整数）。variableCostRatio と排他
variableCostRationumberNo変動費率 0以上1未満（小数第6位まで）。variableCost と排他

Example response

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

{
  "assumptions": [
    "変動費は売上高に比例し、固定費は一定（CVP分析の標準的な前提）",
    "販売構成（商品の売上の組み合わせ）は一定",
    "円未満は切り上げ。整数演算で計算し、浮動小数点の誤差を含まない"
  ],
  "disclaimer": "本結果は入力値に基づく計算結果の提供であり、経営・融資・税務・会計・投資・申請等の判断や助言ではありません。可否・合否・推奨は返しません。判断の基準は利用者が定め、必要に応じて専門家に確認してください。",
  "result": {
    "breakEvenSales": 37500000,
    "contributionMarginRatio": 0.4,
    "marginOfSafetyRatio": 0.25,
    "targetProfitSales": 45000000
  },
  "source": "https://ismec.jp/break-even-point-from-financial-statements/",
  "tool": "break_even",
  "trace": [
    "限界利益率 = 1 − 変動費率 = 0.4",
    "損益分岐点売上高 = 固定費 ÷ 限界利益率 = 15000000 ÷ 0.4 → 円未満切り上げ 37500000",
    "安全余裕率 = (売上高 − 損益分岐点売上高) ÷ 売上高 = (50000000 − 37500000) ÷ 50000000 = 0.25",
    "目標利益達成売上高 = (固定費 + 目標利益) ÷ 限界利益率 = (15000000 + 3000000) ÷ 0.4 → 円未満切り上げ 45000000"
  ]
}

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://ismec-agent-tools.ismec.workers.dev/v1/calc/break-even' \
  -H 'content-type: application/json' \
  --data-raw '{"fixedCost":15000000,"sales":50000000,"targetProfit":3000000,"variableCostRatio":0.6}'

# 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://ismec-agent-tools.ismec.workers.dev/v1/calc/break-even' \
  -H 'content-type: application/json' \
  --data-raw '{"fixedCost":15000000,"sales":50000000,"targetProfit":3000000,"variableCostRatio":0.6}' \
  | 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%2Fismec-agent-tools.ismec.workers.dev%2Fv1%2Fcalc%2Fbreak-even&method=POST
const res = await pay("https://ismec-agent-tools.ismec.workers.dev/v1/calc/break-even", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "fixedCost": 15000000,
    "sales": 50000000,
    "targetProfit": 3000000,
    "variableCostRatio": 0.6
  }),
});
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://ismec-agent-tools.ismec.workers.dev/v1/calc/break-even",
        json={
            "fixedCost": 15000000,
            "sales": 50000000,
            "targetProfit": 3000000,
            "variableCostRatio": 0.6,
        },
    )
    print(res.status_code, res.text)

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