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x402stock Backtest
x402
x402stock Backtest is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-14).
Backtests an SMA crossover or RSI mean-reversion strategy on a US stock ticker and returns a PNG equity-curve report with full performance statistics
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 hosted PNG image URL (artifact.png_url) showing the strategy equity curve plotted against a buy-and-hold baseline, plus full backtest statistics including returns, drawdown, and other performance metrics computed over the requested historical window with no lookahead bias.
Example use cases
Golden cross strategy evaluation
“Backtest a 50/200 SMA crossover on AAPL over the last 5 years with $50,000 starting capital and send me the equity curve image comparing it to buy and hold.”
RSI mean-reversion on ETF
“Run an RSI mean-reversion backtest on SPY using a 14-day period with lower threshold 30 and upper 70, over 3 years starting with $10,000 — I want to see the stats and the chart.”
Strategy comparison for volatile stock
“Can you backtest an SMA crossover strategy on TSLA with a 20-day fast and 100-day slow moving average over the last 2 years and show me how it performed versus just holding?”
Technical details
Endpoint
GEThttps://agents.x402stock.xyz/api/v1/backtest/:tickerWhen to prefer
Choose this endpoint when you need a quick, visual backtest of a standard technical strategy (SMA crossover or RSI mean-reversion) on a US equity with a rendered PNG report and hosted image URL. It is ideal for AI agents that need to present a chart artifact to users. Prefer alternatives if you need custom strategy logic, intraday data, options backtesting, or multi-asset portfolio simulation.
Side effects
- Invalid or delisted ticker returns an error with no data
- fast SMA period >= slow SMA period may produce degenerate results
- years parameter exceeding 5 is rejected
- RSI lower >= upper threshold may cause validation error
- Insufficient historical data for requested period
- Payment of 0.5 USDC not confirmed results in 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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