Equity Curve
by Portfolio Stats in Other
Equity-curve summary of a price or return series you supply: CAGR, volatility, Sharpe, drawdown, best and worst period.
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
Reliability
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=2Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
periodsPerYear | integer | No | Periods per year for annualising: 252 daily (default), 52 weekly, 12 monthly |
prices | string | No | Price series, oldest first, JSON like [100,101,99.5] or 100,101,99.5 (up to 1000). Give prices OR returns |
returns | string | No | Period returns, oldest first, decimals by default (0.01 = 1%). Give returns OR prices |
riskFreeRatePct | number | No | Annual risk-free rate in percent for Sharpe and Sortino (default 0) |
startValue | number | No | Starting value when you give returns (default 100); ignored for prices |
unit | string | No | decimal (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 --decodeJavaScript: 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
We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 7 h ago | Passed | 402 | 545 ms | $0.02 |
| 19 h ago | Passed | 402 | 531 ms | $0.02 |
| 47 h ago | Expected HTTP 402, got 530 | 530 | 99 ms | - |
| 3 days ago | Expected HTTP 402, got 530 | 530 | 94 ms | - |
| 5 days ago | Expected HTTP 402, got 530 | 530 | 106 ms | - |
Show 9 older checks
| 5 days ago | Expected HTTP 402, got 530 | 530 | 207 ms | - |
| 5 days ago | Expected HTTP 402, got 530 | 530 | 180 ms | - |
| 5 days ago | Passed | 402 | 515 ms | $0.02 |
| 5 days ago | Passed | 402 | 593 ms | $0.02 |
| 6 days ago | Passed | 402 | 544 ms | $0.02 |
| 6 days ago | Passed | 402 | 597 ms | $0.02 |
| 6 days ago | Passed | 402 | 482 ms | $0.02 |
| 6 days ago | Passed | 402 | 580 ms | $0.02 |
| 7 days ago | Passed | 402 | 420 ms | $0.02 |