https://github.com/braedonsaunders/polymarket-btc-pulse-overlay
Read-only Binance BTC/USDT price, flow, and liquidity overlay for Polymarket BTC pages.
https://github.com/braedonsaunders/polymarket-btc-pulse-overlay
binance bitcoin browser-extension btc chrome-extension javascript market-data polymarket price-overlay websocket
Last synced: 16 days ago
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Read-only Binance BTC/USDT price, flow, and liquidity overlay for Polymarket BTC pages.
- Host: GitHub
- URL: https://github.com/braedonsaunders/polymarket-btc-pulse-overlay
- Owner: braedonsaunders
- License: mit
- Created: 2026-03-11T22:53:24.000Z (3 months ago)
- Default Branch: main
- Last Pushed: 2026-03-11T23:06:21.000Z (3 months ago)
- Last Synced: 2026-03-12T04:20:44.071Z (3 months ago)
- Topics: binance, bitcoin, browser-extension, btc, chrome-extension, javascript, market-data, polymarket, price-overlay, websocket
- Language: JavaScript
- Size: 281 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Security: SECURITY.md
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README
# BTC Pulse Overlay
Fast market context. Zero trade calls.
BTC Pulse Overlay is a read-only browser extension that adds a live Binance spot reference panel directly into compatible Polymarket price pages. It surfaces price, latency, short-term flow, and liquidity in the place people already look, without placing orders, clicking buttons, or telling anyone what to trade.
If your first question on a compatible market page is "what is spot doing right now?", this extension answers it immediately.
## What it shows
- Live Binance spot reference price for supported assets
- WebSocket latency to the latest trade print
- Short-term aggressor flow bias
- Lightweight liquidity context from depth, spread, and recent flow
## What it does not do
- Place trades
- Click buttons
- Automate the site
- Emit entry or exit instructions
- Claim affiliation with Polymarket or Binance
## Compatible pages
The current version is tuned for Polymarket price markets where the price header row is visible on the page.
Currently verified assets:
- BTC
- ETH
- SOL
- XRP
- DOGE
- BNB
Unsupported 5-minute assets show an unavailable label instead of falling back to BTC.
## Install
1. Clone or download this repo.
2. Open `chrome://extensions` in a Chromium-based browser.
3. Enable `Developer mode`.
4. Click `Load unpacked`.
5. Select this folder.
6. Open a compatible Polymarket price page.
## Local development
There is no build step.
1. Edit [`content.js`](content.js) or [`manifest.json`](manifest.json).
2. Reload the extension from `chrome://extensions`.
3. Refresh the target page.
## Design guardrails
This project should remain:
- Read-only
- Small and understandable
- Easy to audit
- Respectful of the platform it runs on
Changes that introduce order placement, automation, account actions, or "you should trade this now" style guidance are out of scope for the public repo.
## Contributing
Bug reports, UI fixes, compatibility improvements, and observability ideas are welcome. Start with [`CONTRIBUTING.md`](CONTRIBUTING.md).
## Security
Please report vulnerabilities privately as described in [`SECURITY.md`](SECURITY.md).
## License
MIT. See [`LICENSE`](LICENSE).
## Disclaimer
This is an unofficial community project. It is not affiliated with, endorsed by, or sponsored by Polymarket or Binance. Users are responsible for complying with the terms, laws, and rules that apply to their own use.