Hojun Lee

On-demand wallet analysis: full ERC20 transfer history, per-token positions, current USD value via DexScreener, top 10 holdings. Supports Ethereum, Base, Arbitrum, Optimism, Polygon, BSC. PPE $0.05 per wallet analyzed. No subscription.

Search and retrieve archived snapshots of any URL from Internet Archive's Wayback Machine. Supports date range filtering, deduplication, status code filtering, and optional HTML content fetching via CDX API. Ideal for web archive research, deleted content recovery, and SEO history analysis.

Pass a URL + JSON schema (or natural-language goal). Claude reads the page and returns a strict JSON object matching your schema. Product / news / hotel / real-estate / job-board extraction. BYO Anthropic API key. $0.01 per page.

Scrape Wikipedia articles via public MediaWiki API — no proxy, no auth. Modes: summary (extract + thumbnail), full_text, search, random, category. Supports 250+ language editions.

Fetch time-series economic data from the World Bank Open Data API. No API key required. Supports GDP, population, inflation, and 20,000+ indicators across 200+ countries. Filter by country, indicator, and year range.

Compares APY and TVL across yield-bearing stablecoins: sUSDe (Ethena), sUSDS (Sky), sDAI, sGHO, sfrxUSD vs benchmark USDC lending rates. Includes USDe peg health and spread-vs-USDC in basis points. No API key. $0.01/run.

Finds the best DeFi yield for a specific token (ETH, BTC, USDC, SOL, etc.) across 15,000+ pools. Risk classification: single-asset, LP, lending. APY trends and reward breakdown. No API key. $0.005/run.

Tracks currently trending cryptocurrencies and NFTs on CoinGecko, plus top 24h gainers and losers from top-250 coins by market cap. No API key. $0.005/run.

Extract structured metadata from any URL: title, description, OpenGraph (og:title/image/type/url/site_name), Twitter Cards, canonical, favicon, JSON-LD schema.org, language, h1 count, images, links. Used for link previews, SEO audits, content cataloging. $0.005/URL.

Tracks live BTC/ETH/SOL options on Deribit (largest crypto options exchange). Implied volatility (IV) surface by expiry, put/call ratio, max pain price, top OI strikes, funding vs spot. No API key. Perfect for options traders. $0.005/run.

Real-time peg deviation in basis points for 50+ stablecoins (USDT, USDC, DAI, FDUSD, USDe, sUSD, GUSD, …). Configurable alert threshold. Catch the next UST/USDR moment early. PPE $0.001/stablecoin.

Convert a Twitter / X thread (URL or pasted text) into a clean Markdown article. Removes '1/N' noise, smooths transitions, adds optional H2 headings, preserves facts and quotes. BYO Anthropic API key. $0.01 per thread.

Extract full transcripts and subtitles from YouTube videos. Supports batch URLs, auto-generated captions, 50+ languages, and timestamped output. Perfect for LLM ingestion, RAG pipelines, and content analysis. $0.01/video.

Track 238+ curated smart-money wallets + auto-discovery across Ethereum, Base, Arbitrum, BSC and Solana. Returns transactions, PnL, win-rate, coordinated buys, and token flow. Free alternative to Nansen ($150/mo). PPE $0.02/wallet.

Real-time Korea vs global crypto price gap (Upbit/Bithumb vs Binance/Coinbase) for BTC, ETH, XRP, SOL + 50 alts. KRW/USD FX-adjusted. Telegram alerts on premium thresholds. Free public APIs. PPE $0.003/token.

On-demand risk lookup for EVM wallet addresses. Returns flags for sanctioned, mixer, money laundering, cybercrime, phishing, darkweb, blacklist, fake KYC, stealing attack. Source: GoPlus Security aggregating SlowMist + BlockSec + OFAC. $0.01 per address.

Live positions and PnL for the top traders on Hyperliquid perp DEX. Filter by min position USD, fills lookback, PnL alert. Catch whale entries before the crowd. No API key. PPE $0.003/trader scanned.

Real-time Bitcoin network metrics: hash rate, difficulty, mempool size, transaction count, mining revenue, block times, and fee rates. Fetches from blockchain.info and mempool.space. Perfect for miners, investors, and developers tracking BTC network activity.

Scans spot bid/ask prices across 5 major CEXes (Binance, Bybit, OKX, Kraken, Gate.io) and identifies raw cross-exchange spread opportunities. Best buy/sell exchange highlighted per coin. No API key. $0.003/coin.

Scan 150+ DeFi protocols across Ethereum, Arbitrum, Base, Optimism, Solana, BSC for the best stablecoin, ETH, BTC yields. TVL filter, APR, IL risk score. Replaces DefiLlama Pro browsing. DefiLlama data. PPE $0.001/pool.

Search the web using DuckDuckGo — no API key required. Returns clean JSON: title, URL, snippet, domain, rank. Perfect for AI agents and LLM pipelines that need real-time web search. Supports web and news search.

Scans CBOE free delayed-quote API for unusual options: volume/OI ratio > threshold. Covers 80+ S&P500 + major ETFs by default. Outputs strike, expiry, DTE, volume, OI, ratio, IV%, notional, moneyness, greeks. Filter by calls/puts, IV, DTE. No API key required.

Live Bitcoin mempool snapshot: whale transfers (≥X BTC), pending tx count, fee bands (next-block / 30min / 1hr), recent block stats. mempool.space data. Time your BTC sends, catch whale moves. PPE $0.002/snapshot.

Crypto data MCP server: real-time market data API for AI agents. Tools include kimchi premium, DeFi yields, ETF flows, Fear & Greed index, funding rates, and market metrics. No API keys required. Persistent HTTP server.