PredictionToolkit logoPredictionToolkit
Language: English
Search tools
← Browser extensions

Browser extension

PolyChart: add a floating candlestick panel to Polymarket

PolyChart overlays a chart on Polymarket event pages and retrieves price history through the CLOB API. The panel can move, resize or minimize while the underlying market remains visible.

3.5/ 5Editorial ratingEditorial assessment
Install PolyChart from Chrome Web Storechromewebstore.google.com
Available on
Browser extension
Pricing
The store lists free core charts and 3 Pro purchase options.
Availability: public

Screenshots and interface

Product preview1 / 2

The store demo shows the chart above the event interface.

What is PolyChart?

Select the exact outcome after the extension detects the event’s available outcomes. Free covers longer candle intervals; Pro adds shorter views, indicators and multiple-outcome comparisons. Charts offer historical price context, but they are not executable order-book quotes.

The exported volume series is described as proxy volume rather than a complete record of trading. Desktop alerts use background checks at 60-second intervals, so they are polling-based browser notifications rather than tick-level or server-side monitoring. Panel and alert preferences are retained locally, while Pro entitlement validation uses the provider’s external service.

Who it is for

  • Users who prefer OHLC candles to probability lines.
  • Researchers comparing price histories across outcomes.
  • Desktop users configuring market-price notifications.

Features and coverage

  • Floating event panel

    Move, resize or minimize the chart and load the event’s automatically detected outcomes.

  • Free candle views

    Use 1-hour, 4-hour and daily OHLC intervals with an OHLC crosshair, without connecting a wallet or trading account.

  • Pro intervals and indicators

    Add 5-minute and 15-minute views, MA20, EMA12, Bollinger Bands, RSI14 and MACD.

  • Outcome overlays

    Pro supports comparisons of up to 8 outcomes on a chart.

  • Desktop alerts

    Set thresholds for background checks at 60-second intervals and delivery through desktop notifications.

  • CSV and preferences

    Export timestamps, OHLC and the supplied proxy-volume field, and retain panel and alert settings locally.

Workflows with PolyChart

Inspect price structure

Open the correct event, choose its outcome and select the candle interval before interpreting patterns.

Compare outcomes

Overlay related outcome histories on Pro and examine whether their patterns actually differ.

Configure a notification

Set the price threshold and enable browser notifications. Expect polling and desktop delivery rather than per-tick alerts.

Pricing and total cost

The store lists free core charts and 3 Pro purchase options.

Free

US$0

  • 1H, 4H and 1D candles.
  • OHLC crosshair.
  • No wallet or trading-account connection.

Pro monthly

US$12.99/month

  • Short intervals, indicators and overlays.
  • Alerts and CSV export.

Pro annual

US$129/year

  • Pro features.

Pro lifetime

US$89 once

  • The published lifetime offer.

Getting started

Before you start: The volume series is a proxy, not complete exchange trade volume.

  1. Install from the official Chrome listing.
  2. Open a supported Polymarket event page.
  3. Choose the exact outcome and position the floating panel.
  4. Select an interval and any available indicators.
  5. Enable notifications if using price alerts.

The supplied volume is proxy volume and does not represent a complete traded-volume record.

Useful links

    What to check

    • The volume series is a proxy, not complete exchange trade volume.
    • Alerts use desktop notifications and checks roughly every 60 seconds.
    • Historical candles are not executable quotes.
    • Pro validation depends on the provider’s external entitlement service.

    A closer look

    Ratings & reviews

    Editorial rating
    3.5/ 5
    0 user reviews
    PredictionToolkit editorial

    Our take on PolyChart

    Editorial rating: 3.5/5. Movable charts, clear interval tiers and exports add context to native market pages. Proxy volume and browser-dependent alerts should not be confused with complete venue data or server-side monitoring.

    Based on documented features, setup and access terms. How we rate

    User reviews 0

    The main score switches to user ratings after 5 published reviews.

    Be the first to share your experience

    A specific example helps the next person choose the right tool.

    Related tools

    Browse category
    PolyTape product overview
    PolyTape
    Analytics3.5Editorial

    Read the sequence behind a trader’s result through market-level fills, position replay and saved activity.

    • Access Web · API · MCP

    Compare recorded market data for analysis.

    Official Jaeger store demo with article-related markets in a side panel.
    Jaeger
    Browser extension3.0Editorial

    A Chrome extension that finds related Polymarket questions from a webpage, selection or Twitter/X post.

    • Access Browser extension

    Also in Browser Extensions.

    Synthesis overview of its Polymarket trading workspace
    Synthesis
    Trading terminal3.0Editorial

    A web terminal combining outcome tables, chart context, detailed depth and an order-entry workspace.

    • Trading mode Manual
    • Access Web

    Compare an integrated chart-and-order terminal.

    Frequently asked questions about PolyChart

    Do charts require connecting my wallet?

    The listing describes access without a wallet or trading-account connection.

    Can I compare multiple outcomes?

    Pro supports up to 8 outcome overlays.

    Are alerts instantaneous?

    No. They use 60-second background checks and desktop notifications.

    Does CSV volume represent actual exchange volume?

    The listing calls the provided series proxy volume; it is not a complete traded-volume record.