Hojun Lee

Real-time perp funding rates across all major CEXs (Binance, OKX, Bybit, Bitget, Bingx) + Hyperliquid in one row per symbol. Hourly + daily + annualized APR. Identify arbitrage opportunities. Free public APIs. PPE $0.002/symbol.

Convert any URL to clean Markdown plus structured metadata (title, author, date, lang, image, tags). Uses trafilatura — the same library Common Crawl uses. LLM-ready output. Batch up to 500 URLs. $0.005 per URL.

Track the AI/Agent crypto token ecosystem. Returns market cap, volume, price changes for AI-category tokens across multiple CoinGecko categories. Includes sector summary and top movers.

Ranks 488 altcoin/BTC pairs by 24h performance vs Bitcoin using Binance data: top gainers, top losers, volume leaders, market breadth % (altseason signal). No API key. $0.005/run flat.

Computes the Altcoin Season Index: what % of top-50 coins outperformed BTC over 90 days. Returns per-coin comparison, beat/miss flag, and aggregate score. Score ≥75 = altcoin season, ≤25 = BTC season. No API key required.

Altcoin Season Index tracker: what % of top-50 altcoins outperformed BTC over 90 days. Per-coin performance, rank, and aggregate altcoin vs Bitcoin score (0-100). Track BTC dominance shifts and altcoin rotation. No API key required.

Track app rankings by keyword across Apple App Store and Google Play Store. Find competitors, discover keyword opportunities, and monitor your app's rank. Essential for App Store Optimization (ASO).

Pass any URL or text — get back a tight summary in your chosen style (TL;DR / bullets / executive / tweet) plus topic tags + sentiment. Article body auto-extracted via trafilatura. BYO Anthropic API key. $0.005 per summary, Claude tokens billed by Anthropic.

Binance perpetual futures sentiment dashboard: OI change (1h/4h/24h), retail L/S ratio, top trader account + position L/S ratios, and taker buy/sell flow. Composite sentiment: overcrowded_long/capitulation/neutral. No API key. $0.005/coin.

Bitcoin miner revenue tracker: block subsidy vs transaction fees, fee-to-reward ratio, and mining profitability trends. Detect miner selling pressure signals post-halving. No API key. $0.005/run.

Bitcoin mining pool tracker: hashrate distribution, block counts, and pool dominance (Nakamoto coefficient). Covers Foundry USA, AntPool, F2Pool and 14+ pools. Monitor mining centralization risk. No API key. $0.005/run.

Tracks Bitcoin mining pool hashrate share, block counts, and centralization risk (Nakamoto coefficient). Covers Foundry USA, AntPool, F2Pool and 14+ pools. No API key. $0.005/run.

Real-time Bitcoin network dashboard: block height, mempool backlog, fee estimates, mining pool distribution, hashrate trend, difficulty change, block rewards, and halving countdown. mempool.space API, no auth required. $0.01/run.

Tracks peer-to-peer margin lending rates on Bitfinex for USD, USDT, BTC, ETH. Shows FRR (Flash Return Rate), annualized APR, best offers, and lending volume. No API key. $0.005/run.

Scrape posts from Bluesky social network via the public AT Protocol API. Search by keyword, hashtag, or user handle. No API key required. Outputs post text, author, likes, reposts, replies, images, URLs, and tags. PPE $0.003/post.

Tracks Bitcoin miner block revenue: subsidy vs transaction fees, fee-to-reward ratio trend. Essential for post-halving miner economics. No API key. $0.005/run.

Fetch global crypto market data: total market cap, BTC/ETH dominance, 24h trading volume, DeFi market cap, active cryptocurrencies count, market sentiment, and Fear & Greed index. Uses public CoinMarketCap data. No API key required.

Track US Congress stock trades (House + Senate PTR). Filter by politician, ticker, buy/sell, date. Real-time data from official disclosures. $0.001/start + $0.001/trade.

Track public company Bitcoin and Ethereum holdings. 179 BTC companies + 32 ETH companies ranked by holdings. Unrealized P&L, avg entry price, % of supply. No API key required.

Real-time staking APY, inflation rate, bonded %, and unbonding period for 13 major Cosmos SDK chains (ATOM, OSMO, TIA, INJ, DYDX, AKASH, STARS, KAVA, AXL, SCRT, STRIDE, EVMOS, XPRT). Public cosmos.directory REST API, no key. $0.005/chain.

Screens all 738 CoinGecko categories by market cap and 24h performance. Find trending narratives, best/worst sectors, emerging categories. No API key. $0.005/run.

Computes Pearson correlation matrix of daily returns for crypto assets. Identify highly correlated assets (same risk) or low-correlation pairs (diversification). CoinGecko free API, 7/30/90 day windows. No API key. $0.003/pair.

Real-time crypto market data exposed as an MCP (Model Context Protocol) server. AI agents connect directly and call tools: kimchi premium, DeFi yields, ETF flows, Fear & Greed index, funding rates, market overview. No API keys required. Runs as a persistent HTTP server.

Simulate dollar-cost averaging for any CoinGecko-listed crypto over the past 1-365 days. Daily/weekly/biweekly/monthly purchase frequency. Shows per-purchase breakdown, total P&L, avg cost, vs lump-sum comparison. Free CoinGecko API, no key needed. $0.002/run.