# Money Mind — Deflated Sharpe Ratio Calculator

> Money Mind — Deflated Sharpe Ratio Calculator is a paid API for AI agents from money-mind-extract.onrender.com, paid per call via x402, $0.31/call, status unknown (last checked 2026-10-18).

Adjusts a backtest's Sharpe ratio downward to correct for selection bias introduced by testing multiple strategies or parameter sets.

## Facts

- Endpoint: POST https://money-mind-extract.onrender.com/deflatedsharpe?utm_source=zero.xyz
- Price: $0.31/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/money-mind-deflated-sharpe-ratio-calculator-528d9065
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PpLKSHs1hPBgN40Xgka2b

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability money-mind-deflated-sharpe-ratio-calculator-528d9065 -d '<json body>'
```

Example prompt: I tested 50 parameter combinations and my best strategy has a Sharpe of 2.1 — can you deflate that Sharpe to account for the fact that I ran it across 50 tries and tell me if it's actually real?

## When to prefer this

Choose this endpoint when you need a rigorous, pay-per-call statistical correction for Sharpe ratios inflated by running multiple backtests or parameter searches — especially when you need a fast, no-account verdict before pitching a strategy or publishing results. Prefer this over manual Probabilistic Sharpe Ratio (PSR) calculations when you want an authoritative adjudication without building the math yourself.

## Known failure modes

- Missing or malformed body payload causes 400-level error
- Insufficient USDC balance or failed x402 payment returns 402 Payment Required
- Body missing required trial count or Sharpe inputs may return an error or low-confidence verdict
- Render.com cold start may cause initial latency spike or timeout

## How this service works

Pay-per-call adjudication for trading research.
Eleven gates that killed 35 of our own concepts. Is your backtest real, is your
price data real, is your t-stat inflated? USDC on Base, no account needed.

## Output

Returns a JSON object with a 'reading' field describing the deflation-adjusted Sharpe ratio analysis and a 'verdict' field indicating whether the strategy's performance is statistically credible after correcting for the number of searches or trials conducted.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "description": "Is this Sharpe real, or the best of N tries? Deflated for the search you ran"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "reading": "...",
  "verdict": "..."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/money-mind-deflated-sharpe-ratio-calculator-528d9065/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from money-mind-extract.onrender.com](https://www.zero.xyz/host/money-mind-extract.onrender.com/llms.txt)