61trust / 100

Equity Curve

by Portfolio Stats in Other

x402 APIPassing, checked 7 h ago

Equity-curve summary of a price or return series you supply: CAGR, volatility, Sharpe, drawdown, best and worst period.

GET
https://portfolio-stats.x402tookit.com/equity-curve
Price
$0.02
per call in USDC
Uptime
64.3%
last 30 days
Response time
544 ms
597 ms slowest 5%
Last check
Passed
7 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

GET https://portfolio-stats.x402tookit.com/equity-curve

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://portfolio-stats.x402tookit.com/equity-curve?periodsPerYear=12&prices=%5B100%2C104%2C101%2C108%2C112%2C106%2C115%5D&riskFreeRatePct=2

Parameters

ParameterTypeRequiredDescription
periodsPerYearintegerNoPeriods per year for annualising: 252 daily (default), 52 weekly, 12 monthly
pricesstringNoPrice series, oldest first, JSON like [100,101,99.5] or 100,101,99.5 (up to 1000). Give prices OR returns
returnsstringNoPeriod returns, oldest first, decimals by default (0.01 = 1%). Give returns OR prices
riskFreeRatePctnumberNoAnnual risk-free rate in percent for Sharpe and Sortino (default 0)
startValuenumberNoStarting value when you give returns (default 100); ignored for prices
unitstringNodecimal (default, 0.01 = 1%) or percent (1 = 1%); applies to returns only

Example response

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

Example response, 43 lines
{
  "annualizedVolatilityPct": 18.97008139,
  "asOf": "2026-10-12T00:57:39.570Z",
  "bestPeriodIndex": 6,
  "bestPeriodPct": 8.490566038,
  "cagrPct": 32.25,
  "calmarRatio": 6.02,
  "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.",
  "educationalOnly": "Educational arithmetic on the numbers you supplied. Not investment advice: it does not say what to buy, sell, hold or how much to risk, and a supplied or past series does not predict the future.",
  "endValue": 115,
  "indexNote": "period k is the return from level k-1 to level k; level 0 is the start",
  "inputKind": "prices",
  "longestLosingStreakPeriods": 1,
  "maxDrawdownPct": -5.357142857,
  "maxDrawdownPeakIndex": 4,
  "maxDrawdownTroughIndex": 5,
  "notChecked": [
    "everything the other stats shelves say they do not check: this is one supplied series, never fetched or verified",
    "costs, taxes, dividends and cash flows into or out of the account (a simple compounding path is assumed)",
    "…1 more"
  ],
  "periods": 6,
  "periodsPerYear": 12,
  "positivePeriodsPct": 66.66666667,
  "reasons": [
    "Total return = last / first - 1; CAGR = (last / first)^(1 / years) - 1 with years = periods / periodsPerYear; volatility is the sample standard deviation times sqrt(periodsPerYear).",
    "Sharpe and Sortino use your risk-free rate split evenly across periods; Calmar is CAGR divided by the size of the maximum drawdown.",
    "…1 more"
  ],
  "recoveredFromMaxDrawdown": true,
  "riskFreeRatePct": 2,
  "sharpeRatio": 1.463694782,
  "sortinoRatio": 3.111278288,
  "source": "computed locally",
  "startValue": 100,
  "summary": "6 periods (0.5 years): total 15%, CAGR 32.25%, volatility 18.97008139%, max drawdown -5.357142857%.",
  "totalReturnPct": 15,
  "verdict": "SUMMARY_COMPUTED",
  "worstPeriodIndex": 5,
  "worstPeriodPct": -5.357142857,
  "years": 0.5
}

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://portfolio-stats.x402tookit.com/equity-curve?periodsPerYear=12&prices=%5B100%2C104%2C101%2C108%2C112%2C106%2C115%5D&riskFreeRatePct=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://portfolio-stats.x402tookit.com/equity-curve?periodsPerYear=12&prices=%5B100%2C104%2C101%2C108%2C112%2C106%2C115%5D&riskFreeRatePct=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%2Fportfolio-stats.x402tookit.com%2Fequity-curve
const res = await pay("https://portfolio-stats.x402tookit.com/equity-curve?periodsPerYear=12&prices=%5B100%2C104%2C101%2C108%2C112%2C106%2C115%5D&riskFreeRatePct=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://portfolio-stats.x402tookit.com/equity-curve?periodsPerYear=12&prices=%5B100%2C104%2C101%2C108%2C112%2C106%2C115%5D&riskFreeRatePct=2")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

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47 h agoExpected HTTP 402, got 53053099 ms-
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5 days agoExpected HTTP 402, got 530530106 ms-
Show 9 older checks
5 days agoExpected HTTP 402, got 530530207 ms-
5 days agoExpected HTTP 402, got 530530180 ms-
5 days agoPassed402515 ms$0.02
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6 days agoPassed402580 ms$0.02
7 days agoPassed402420 ms$0.02