# PNL Toolkit

> Investing and trading calculators with an editable Screenshot Maker.

All eight calculators and three calculator image templates are free without signup. Pro unlocks eight account and income layouts for a one-time US$7.99 payment. Outputs represent calculations or user-entered figures; no financial account is connected.

## Tools
- [Investment Calculators & Screenshot Maker](https://pnltoolkit.com/): Explore eight investment and trading calculators. Create customizable account, revenue and income screenshots without signing up.
- [Free MCP Server for Calculations & PNG Charts](https://pnltoolkit.com/for-agents): Connect PNL Toolkit to Claude, ChatGPT, Cursor, VS Code or Claude Code. Calculate, create a PNG and continue editing on the web without an account.
- [Historical Investment Return Calculator](https://pnltoolkit.com/calculators/investment-return): Compare historical investment returns for Bitcoin, stocks and ETFs. Choose your asset, investment amount and date range.
- [DCA Calculator & Backtest](https://pnltoolkit.com/calculators/dca): Backtest dollar-cost averaging in Bitcoin, QQQ and other assets. Compare recurring contributions, fees and historical returns.
- [Compound Interest Calculator](https://pnltoolkit.com/calculators/compound-interest): Calculate compound growth with monthly contributions, fees and inflation. Explore how different assumptions change the result.
- [Position Size Calculator](https://pnltoolkit.com/calculators/position-size): Calculate a position size from your loss budget, entry and stop price, with fees, slippage and exposure limits.
- [Trade Expectancy & Kelly Calculator](https://pnltoolkit.com/calculators/trade-expectancy): Explore trade expectancy, break-even win rates and fractional Kelly sizing using your own assumptions.
- [Drawdown Recovery Calculator](https://pnltoolkit.com/calculators/drawdown-recovery): See the gain needed to recover a drawdown. Compare losing streaks, recovery time and monthly deposits.
- [Spread & Trading Fee Calculator](https://pnltoolkit.com/calculators/spread-and-fees): Compare quoted spreads, maker fees, rebates and adverse-selection costs to calculate round-trip trading P&L.
- [Inventory Skew & Quote Calculator](https://pnltoolkit.com/calculators/inventory-skew): Explore how inventory targets, spreads and tick sizes change market-making bid and ask quotes.
- [Account & Income Screenshot Maker](https://pnltoolkit.com/screenshot-maker): Create customizable portfolio, wallet, revenue and income images. Use 3 free calculator templates or unlock 8 Pro account and income templates.

## Free remote MCP
Endpoint: https://pnltoolkit.com/mcp (Streamable HTTP, stateless, no authentication). Eight tools: historical_return, dca_backtest, compound_interest, position_size, trade_expectancy, drawdown_recovery, spread_and_fees, inventory_quotes. Each returns full conditions, assumptions, results, an editable URL, share page and PNG. include_image=true adds an inline PNG. Historical return and DCA use the installed monthly snapshot and return data dates and source metadata, not live quotes. Pro layouts and accounts are excluded. [Installation instructions](https://pnltoolkit.com/for-agents).

## Historical data
- BTC: 2014-10 through 2026-09; monthly observations.
- ETH: 2017-11 through 2026-09; monthly observations.
- SOL: 2020-04 through 2026-09; monthly observations.
- SPY: 1993-02 through 2026-09; monthly observations.
- QQQ: 1999-04 through 2026-09; monthly observations.
- VTI: 2001-07 through 2026-09; monthly observations.
- VXUS: 2011-02 through 2026-09; monthly observations.
- GLD: 2004-12 through 2026-09; monthly observations.
- TLT: 2002-08 through 2026-09; monthly observations.
- AAPL: 2010-01 through 2026-09; monthly observations.
- MSFT: 2010-01 through 2026-09; monthly observations.
- NVDA: 1999-02 through 2026-09; monthly observations.
- TSLA: 2010-07 through 2026-09; monthly observations.

## Browser-agent actions
The page exposes calculate_account_result and configure_screenshot when WebMCP is supported. Calculate first, then use the visible Create screenshot control to carry the result into an image. configure_screenshot opens a standalone template. Export uses the visible Export PNG control. Pro editing requires an authenticated purchase.

[Calculator inputs and defaults](https://pnltoolkit.com/calculator-inputs.json)

Contact: info@pnltoolkit.com