bykaranteli-mcp

MCP (Model Context Protocol) server for live crypto derivatives data: funding rates, cross-exchange funding arbitrage, open interest pressure, liquidations, options, ETF flows, Fear & Greed and BTC dominance.

47 read-only tools over the public JSON API of bykaranteli.com. Since 2026-09-10 the API asks programs for an account key: a free key comes with any verified account at https://bykaranteli.com/dashboard/api (30 requests a minute, public depth), and the Builder, Business and Scale plans raise the rate and unlock member depth (LiqMap on seven timeframes, 5-minute series, the x402 catalog included). Set it as BYKARANTELI_API_KEY. Data covers Binance USDT-M perpetuals (funding arbitrage additionally compares OKX, Bybit, Gate, HTX, BingX, Kraken, MEXC and Bitget).

Hosted endpoint (no install)

Paste https://mcp.bykaranteli.com as a custom connector in any MCP-capable assistant. Same 47 tools, nothing to install. Without a key it runs on the shared Free pool; a connector header Authorization: Bearer bk_... (Builder and above) brings your own rate limit and member depth.

Quick start

Claude Code

claude mcp add bykaranteli -e BYKARANTELI_API_KEY=bk_... -- npx -y bykaranteli-mcp

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "bykaranteli": {
      "command": "npx",
      "args": ["-y", "bykaranteli-mcp"],
      "env": { "BYKARANTELI_API_KEY": "bk_..." }
    }
  }
}

Cursor / other MCP clients

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

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_liquidations | "How much was liquidated today?", "Did longs or shorts get flushed this week?" | | get_etf_flows | "Did the Bitcoin ETFs buy or sell yesterday?", "Cumulative ETH ETF inflow?" | | get_cot_positioning | "Are hedge funds long or short Bitcoin?", "What did the COT report show?" | | get_options_snapshot | "Where are the BTC option walls?", "What is DVOL / the zero-gamma level?" | | get_coinbase_premium | "Are US investors buying Bitcoin?", "What does the basis trade pay?" | | get_flow_toxicity | "Is toxic order flow building?", "What is BTC's VPIN right now?" | | get_options_flow | "What are the big options players buying?", "Any block trades today?" | | get_slippage | "How much slippage on a $1M market order?", "Which book is thinnest?" | | get_fomc_impact | "What does BTC do on Fed days?", "When is the next FOMC meeting?" | | get_liquidation_cascades | "What caused that flush?", "Who got liquidated this week?" | | get_open_interest | "Is leverage entering the market?", "Are shorts building in XRP?" | | get_psi_charge | "What liquidity state is the market in?", "Is parked money deploying?" | | get_theme_indices | "Which crypto narrative is leading: AI, RWA, DePIN, memes, L2s, DeFi?" | | get_factor_board | "Which indicators sit in an unusual band today, and what followed historically?" | | get_venue_markets | "Total BTC open interest across exchanges?", "What is the DEX share of perp OI?", "Is USDT off peg anywhere?" | | get_leverage_tiers | "How much leverage does Bybit allow on SOL?", "Which exchange has the highest max leverage for DOGE?", "Did any venue cut leverage on a coin this week?" | | get_withdrawal_status | "Has KuCoin paused USDT withdrawals?", "Cheapest network to withdraw USDT from Gate?", "Which exchanges have withdrawals closed right now?" | | get_venue_profile | "What do you record about Bybit?", "How many contracts does OKX list?", "Is HTX up, and what happened there this week?" | | get_settlements | "What expires this week?", "When is the next BTC quarterly on OKX?", "At what price did the September future settle?" | | get_borrow_rates | "What does it cost to borrow USDT on Binance?", "Cheapest venue to borrow ETH?", "Is stablecoin borrow spiking?" | | get_fee_table | "What are Bitget's perp fees?", "Which exchange has the lowest taker fee?", "Did any venue change fees this week?" | | get_lead_lag | "Does Coinbase or Binance move first?" | | get_iv_surface | "What is BTC implied vol by expiry?", "Is downside protection expensive (skew)?" | | get_whale_tape | "Are whales buying or selling right now?" | | get_correlations | "How correlated is SOL to BTC over 30 days?" | | get_new_listings | "Which perpetuals were listed this week, and where first?" | | get_macro_liquidity | "What is the Fed balance sheet / RRP / stablecoin supply doing?" | | get_network_health | "Bitcoin hashrate, difficulty, fees, mempool right now?" | | get_tradfi_board | "TSLA perp funding rate? Which exchanges list NVDA perps? Is the stock session open?" | | get_rsi_heatmap | "Which coins are oversold on the daily? BTC RSI on 4h and 1w?" | | get_hl_whales | "Are Hyperliquid whales net long BTC? What did the biggest accounts just flip?" | | get_positioning | "BTC long/short ratio on Binance? Are top traders net short ETH? CVD today?" | | get_coverage | "Which exchanges are behind your liquidation totals? How fresh is the data?" | | get_orderbook_depth | "Where is the biggest BTC bid wall? How deep is ETH within 2% on Coinbase vs Binance?" | | get_jupiter_perps | "How much long vs short OI is on Jupiter SOL perps? Who topped Jupiter this week? What is the JLP APR?" | | get_turkey_premium | "What do lira buyers pay for bitcoin above the world price? What is the Turkey Premium Index and its score right now? Which Turkish exchange is dearest? What is USDT/TRY against the official rate?" | | get_data_proof | "Can I verify a ByKaranteli number was not changed later? Show the on-chain proof for BTC funding right now. Which Solana transaction sealed the newest epoch?" | | get_cycle_indicators | "Has the Pi Cycle crossed? Mayer Multiple and Puell today?" | | get_altseason | "Is it altseason?", "What is the altcoin season index?" | | get_metric_context | "Is today's funding extreme historically?", "Where does this reading sit in its distribution?" | | get_quantum_exposure | "How much Bitcoin is quantum-vulnerable?", "What is the P2PK exposure?" | | get_liqmap | "Where are the BTC liquidation clusters?", "Where would leveraged longs get liquidated?" |

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_API_KEY | none | Account key (bk_...) sent as Authorization: Bearer. Free at https://bykaranteli.com/dashboard/api; required for programs from 2026-09-10 | | BYKARANTELI_BASE_URL | https://bykaranteli.com | Override the API host (testing only) |

Data notes

• The signal engine was retired in September 2026; this server publishes recorded market data only, no trading signals or performance claims.
• 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

Server: MIT. Data: personal and research use with attribution "ByKaranteli (bykaranteli.com)"; commercial use with the Business plan. Licence text: https://bykaranteli.com/data#license.

Plans and paid depth

| Plan | Price | Rate | Depth | |---|---|---|---| | Free API | $0 | 30 / min | public pages | | Builder | $49 / mo | 300 / min | member depth, x402 catalog included | | Business | $149 / mo | 1,200 / min | member depth, commercial licence, monthly bulk | | Scale | $399 / mo | 3,000 / min | member depth, derived redistribution, daily raw |

Full table: https://bykaranteli.com/developers#tiers. For recorded history and raw records beyond the live snapshots, bykaranteli.com also exposes pay-per-call x402 endpoints for anonymous agents (USDC on Solana or Base, priced per call, no account): https://bykaranteli.com/developers#x402 · machine catalog: https://bykaranteli.com/api/x402. Builder and higher keys call those routes unpaid within their plan limits.