Symphony Lens

Local Composer Strategy Analyzer — your data never leaves your browser

100% Local

Strategy Input

COMPOSER STRATEGY URL

API KEY ID

API SECRET

BENCHMARK

BACKTEST WINDOW

MONTE CARLO SIMS

🔒 Your API keys and strategy URLs are stored only in this page's memory and sent exclusively to api.composer.trade. Nothing is transmitted to any third-party server. Close this tab to clear all credentials.

Performance Summary

Charts

Cumulative Returns

Return Distribution

Rolling 30-Day Sharpe Ratio

Drawdown

Monte Carlo Simulation (ending values)

Walk-Forward Analysis (annual slices)

Period	Return	Max DD	Sharpe	Win Days

How to get started

1. Get your API credentials from Composer:
Log in → Settings → API Access → Generate New API Key

2. Copy any strategy URL from Composer, e.g.:
https://app.composer.trade/symphony/abc-uuid-here/details

3. Paste both above, choose your settings, and click Run Analysis.

Tip: Your API secret is shown only once in Composer — save it somewhere safe when you generate it.