# Monte-Neo strategy verifier

Monte-Neo audits trading-strategy backtests for future-data leaks, costs, and overfitting. Use it before trusting a backtest result.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 8
- Author: NeoZorK
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/NeoZorK/Monte-Neo
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/mcp/monte-neo-strategy-verifier

## What it does

Monte-Neo checks the backtest itself rather than judging the trading idea. The server takes price data plus strategy code or positions, then tests for look-ahead bias, hidden fees, slippage, and selection from many variants. It returns a verdict, the checks that led to it, and concrete follow-up actions.

Its verification set includes future-data probes, Deflated Sharpe analysis, and walk-forward checks. A run can produce a reproducible certificate, with optional signing. People can also read the result as a single-file HTML report using `--html report.html`.

The verifier needs price data and either the strategy code or its positions; without those inputs, there is no backtest to inspect. Claude Code connects to it by starting `monte-neo` through `uvx`.

## Requirements
- Needs: Python and uv (commands run via uvx)

## Install

### Claude Code (native platform)

**Platform CLI**
```bash
claude mcp add monte-neo -- uvx monte-neo
```
uvx runs the command named after the package; if the README names another one, use uvx --from monte-neo <command>

### Codex

**Platform CLI**
```bash
codex mcp add monte-neo-strategy-verifier -- uvx monte-neo
```
uvx runs the command named after the package; if the README names another one, use uvx --from monte-neo <command>

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "monte-neo-strategy-verifier": {
            "command": "uvx",
            "args": [
                "monte-neo"
            ]
        }
    }
}
```
uvx runs the command named after the package; if the README names another one, use uvx --from monte-neo <command>

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "monte-neo-strategy-verifier": {
            "type": "stdio",
            "command": "uvx",
            "args": [
                "monte-neo"
            ]
        }
    }
}
```
uvx runs the command named after the package; if the README names another one, use uvx --from monte-neo <command>

### Gemini CLI

**Platform CLI**
```bash
gemini mcp add monte-neo-strategy-verifier uvx monte-neo
```
uvx runs the command named after the package; if the README names another one, use uvx --from monte-neo <command>

## When to use it
- detect future-bar leakage in a strategy
- include fees and slippage in a backtest
- test Sharpe after trying many variants
- run a walk-forward check on results
- produce a verdict and report for a strategy

## Example prompts
- Check the backtest in `prices.csv` together with `agent_strategy.py`.
- Inspect this strategy for look-ahead bias and point to the affected lines.
- Run the verification and create an HTML report with `--html report.html`.

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