# InvestSim (XingAI)

> AI paper trading lab — mechanical strategies on Invest AI signals. Simulation only.

- Product URL: https://lab.xingai.app
- About: https://lab.xingai.app/about
- Also: https://invest-performance-sim.vercel.app
- Flagship: Invest AI at https://invest.xingai.app
- Main flow: ingest daily signal → run paper strategies → compare equity / fills on dashboard
- Languages: en, zh, ko
- Disclaimer: Not a broker. Not investment advice. Paper ledgers can diverge from live markets.

## What it does

- Pulls top signals and quotes from Invest AI over HTTPS
- Runs multiple independent $10k paper ledgers with fixed exit rules
- Shows drawdown, Sharpe-like metrics, best/worst closed trades, and optional Phase 2 validation
- Portfolio guards can halt new opens on max drawdown
- Publishes read-only MCP handoff: paper-winner, feedback/latest, mcp-preferred, execution evidence

## What it does not do

- Place live brokerage orders (Robinhood MCP / auto-trading is out of scope here)
- Promise returns or provide professional advice
- Auto-promote strategy versions without an operator (Phase 3 is admin-only)

## Access modes

- Public: leave `DASHBOARD_TOKEN` unset (typical local/dev)
- Private: set `DASHBOARD_TOKEN` — dashboard requires login; `/about` and `/legal/*` stay crawlable