npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

bykaranteli-mcp

v0.1.1

Published

MCP server for live crypto derivatives data from bykaranteli.com: funding rates, funding arbitrage, open interest pressure, Fear & Greed, BTC dominance and verified signal performance. Free, no API key.

Downloads

431

Readme

bykaranteli-mcp

MCP (Model Context Protocol) server for live crypto derivatives data: funding rates, cross-exchange funding arbitrage, open interest pressure, Fear & Greed, BTC dominance and a verified signal track record.

Backed by the free, no-auth public JSON API of bykaranteli.com. No API key, no account, no rate-limit registration. Data covers Binance USDT-M perpetuals (funding arbitrage additionally compares OKX, Bybit, Gate, HTX and BingX).

Quick start

Claude Code

claude mcp add bykaranteli -- npx -y bykaranteli-mcp

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "bykaranteli": {
      "command": "npx",
      "args": ["-y", "bykaranteli-mcp"]
    }
  }
}

Cursor / other MCP clients

Any stdio MCP client works: command npx, args ["-y", "bykaranteli-mcp"].

Requires Node.js 18 or newer.

Tools

| Tool | What it answers | |---|---| | get_market_indices | "What is the Fear & Greed index today?", "What is BTC dominance right now?" | | get_funding_heatmap | "What are funding rates right now?", "What is SOL's funding?" | | get_funding_arbitrage | "Any funding arb opportunities?", "Best venue to long/short BTC for carry?" | | get_pressure_scores | "Which coins are over-leveraged / crowded right now?" | | get_top_movers | "Biggest OI spikes today?", "Most extreme funding right now?" | | get_recent_signals | "How did the signals do in the last 24h?" | | get_symbol_performance | "Win rate on ETHUSDT over 90 days?" | | get_strategy_leaderboard | "Which strategies are performing best?" |

All responses are JSON and carry a generatedAt timestamp plus a source URL to the human-readable page. Symbols accept both BTCUSDT and bare BTC.

Configuration

| Env var | Default | Purpose | |---|---|---| | BYKARANTELI_BASE_URL | https://bykaranteli.com | Override the API host (testing only) |

Data notes

  • Signal performance is a live-only track record: real published signals with SHA-256 receipts, evaluated net of fees, slippage and funding. Never backtests. Verify any signal at bykaranteli.com/verify.
  • Funding, OI and pressure data refresh every 15 to 30 minutes; indices every 30 minutes.
  • Nothing here is financial advice. See bykaranteli.com/risk-guide.

Development

npm install
npm run build
node dist/index.js   # speaks MCP over stdio

License

MIT. Attribution appreciated: "ByKaranteli (bykaranteli.com)".