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x402stock Stock Backtest with PNG Report
x402stock Stock Backtest with PNG Report is a paid API for AI agents from agents.x402stock.xyz, paid per call via MPP, $0.5/call, status unknown (last checked 2026-09-10).
Runs an SMA crossover or RSI mean-reversion backtest on a US stock ticker over up to 5 years of daily history and returns performance statistics plus a hosted equity-curve PNG report.
Price / call$0.5
Success—
StatusUnknown
How this service works
Backtests a simple rule on a US stock and returns a finished report PNG. Runs an SMA crossover (?strategy=sma_cross&fast=50&slow=200) or RSI mean-reversion (?strategy=rsi_reversion&period=14&lower=30&upper=70) over daily history (?years=, max 5), no lookahead, rendered as an equity curve vs buy & hold. Returns full stats plus a hosted `artifact.png_url`. From x402stock
Output
Returns a JSON object containing: a hosted PNG artifact URL (equity curve vs buy-and-hold, expires after a set time), strategy metadata (kind, label, parameters), full performance stats (total return, Sharpe-equivalent metrics, max drawdown as available), trade-level detail (count, win rate, average/best/worst return per trade, full trade list), buy-and-hold comparison stats, the date range and bar count used, and a disclaimer. The PNG is accessible via the artifact.url field.
Example use cases
Golden cross strategy evaluation
“Backtest the classic 50/200-day SMA golden cross strategy on SPY over the last 5 years with $50,000 starting capital and show me how it performed versus just buying and holding.”
RSI mean-reversion on tech stock
“Can you run an RSI mean-reversion backtest on NVDA using a 14-day period, buying below 30 and selling above 70, over the past 3 years? I want to see the win rate and equity curve.”
Strategy parameter tuning comparison
“Test the SMA crossover on TSLA with a 20-day fast and 100-day slow moving average over 2 years starting with $25,000 — I want to see the trade list and how it stacked up against buy and hold.”
Technical details
Endpoint
GEThttps://agents.x402stock.xyz/api/v1/backtest/{ticker}When to prefer
Choose this endpoint when you need a quick, no-setup quantitative backtest of a classic technical strategy (SMA crossover or RSI mean-reversion) on a US-listed stock or ETF, and want both machine-readable statistics and a shareable visual equity curve PNG in a single call. It is ideal for agents that need to evaluate strategy viability, compare against buy-and-hold, or generate a report artifact without running their own backtesting infrastructure. Prefer alternatives if you need custom strategies beyond SMA cross or RSI reversion, intraday data, or multi-asset portfolio-level backtests.
Side effects
- Unknown or delisted ticker returns a 404 or error response
- Strategy parameter conflicts (fast >= slow for SMA) may cause a validation error
- Insufficient historical data for the requested years returns partial or error response
- years parameter exceeding 5 is rejected
- Invalid strategy enum value returns a 400 bad request
- Payment not processed via x402 returns a 402 Payment Required
- Artifact URL expires after the stated expiry time and becomes inaccessible
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| fast | integer | |
| slow | integer | |
| lower | number | |
| upper | number | |
| years | number | |
| period | integer | |
| tickerrequired | string | US-listed ticker symbol (uppercase), e.g. AAPL. |
| capital | number | |
| strategy | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| datarequired | object | |
| as_ofrequired | string | |
| sourcerequired | string | |
| tickerrequired | string | |
| artifactrequired | object | |
| strategyrequired | object | |
| disclaimerrequired | string |
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