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Orchard Data Backtest
x402
Orchard Data Backtest is a paid API for AI agents from orchard-data.letom1176.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).
Backtests a rule-based entry signal (e.g. RSI2, IBS, dip-from-high) on a given ticker symbol over historical data and returns win rate, trade count, and strategy vs buy-and-hold comparison.
Price / call$0.1
Success—
StatusUnknown
How this service works
Market data for AI agents, paid per-call via x402 (USDC on Base). Free index at /, free spec here.
Output
Returns a JSON object with the backtest spec (symbol, entry rule, threshold, hold days), a verdict block with a plain-English honest read and whether the first/second half of history agree on direction, and full-period statistics including number of trades, win rate, strategy multiple (cumulative return), and buy-and-hold multiple for the same symbol over the same period.
Example use cases
RSI2 mean-reversion strategy validation
“Backtest an RSI2 below 10 entry on SPY, holding for up to 5 days — I want to see the win rate and whether it beats buy-and-hold.”
NVDA dip-from-high signal test
“Run a backtest on NVDA using a dip-from-20-day-high entry with a threshold of 5, hold for 3 days, and add a 2% stop loss. Does the strategy outperform holding NVDA outright?”
IBS entry evaluation with profit target
“Test an IBS-below entry with threshold 0.2 on QQQ, max hold 10 days, and a 3% profit target — how many trades does it generate and what's the win rate?”
Technical details
Endpoint
GEThttps://orchard-data.letom1176.workers.dev/api/backtestWhen to prefer
Choose this endpoint when you need a quick, quantitative historical backtest of a specific rule-based entry signal (RSI2, IBS, dip-from-high, SMA cross, gap-down, down-days) on a U.S. equity ticker. It is purpose-built for signal validation with plain-English verdict summaries, making it ideal for AI agents that need to reason about whether a trading rule has historically worked. Prefer this over generic data APIs when you want pre-computed win rates, strategy multiples, and buy-and-hold comparisons in a single call rather than raw price data requiring your own analysis.
Side effects
- Missing required query params (symbol, entry, threshold) returns 400 or error JSON
- Invalid entry type string not in enum returns error
- Symbol not found or unsupported ticker may return empty results or error
- Payment not completed via x402 (USDC on Base) returns 402 Payment Required
- Hold days outside 1-30 range may return validation error
- Threshold value out of meaningful range for chosen entry type may produce zero trades
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"spec": {
"entry": "rsi2_below",
"symbol": "SPY",
"hold_days": 5,
"threshold": 10
},
"verdict": {
"honest_read": "...",
"halves_agree_on_sign": true
},
"full_period": {
"n_trades": 118,
"win_rate": 0.66,
"strategy_multiple": 2.1,
"buy_hold_multiple_same_symbol": 2.9
}
}
}Tags
x402
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