Hojun Lee

Scrape Hacker News top/new/best/ask/show stories with scores, comment counts, domains, and HN links. Filter by minimum score, domain, or keywords. No API key required. Perfect for trend monitoring, content curation, and tech pulse tracking. $0.005/story.

Single-call snapshot of all 231 Hyperliquid perpetual futures: mark/oracle price, 24h change, open interest (coins + USD), 24h volume, 8h funding rate (annualized), and premium. Market summary with top 10 by OI/volume/funding. $0.005/run flat.

Fetch GDP growth, inflation, current account, government debt, unemployment, and investment data for 190+ countries from the IMF DataMapper API. Filter by indicator, country, and year range. Free, no API key required. Ideal for macro research and economic dashboards.

Parses SEC Form 4 filings to expose actual insider transactions: CEO/CFO/Director open-market buys & sells, options exercises, awards. Returns ticker, insider name, role, transaction code, shares, price, USD value. Strong quant signal source. Telegram alerts on large trades.

Provide one or more JSON samples (inline or from URLs) and get an inferred JSON Schema (Draft 7 / 2020-12) describing their shape. Bootstrap API validators, Apify input schemas, BigQuery / DuckDB schemas. Powered by genson. $0.01 per inference.

Fetches Korea credit/debit card spending statistics from public financial APIs. Covers total spending, industry breakdown, regional patterns, and YoY changes. No scraping — official public data.

Fetches Korea export/import trade statistics from Korea Customs Service. Filter by HS code, country, port, and period. Returns trade amount and weight data.

Real-time ticker volume, 24h price change, and KRW market depth for Korean crypto exchanges (Upbit, Bithumb, Coinone, Korbit). Detect kimchi premium, Korean retail demand spikes, and arbitrage windows. PPE $0.001/token.

Fetches Korea real estate transaction data from the Ministry of Land public API. Covers apartment, villa, and office-tel buy/rent deals by region and period.

Fetches Korea macro-economic indicators from Statistics Korea (KOSIS) API. Covers GDP, CPI, retail sales, unemployment, service production and 200+ economic indicators.

Daily OHLCV for 2,600+ KOSPI & KOSDAQ stocks from KRX official API. Market cap, volume, price change. Free KRX API key required. PPE $0.0003/stock.

Live TVL across every L2 / L3 chain: Arbitrum, Base, OP, zkSync, Scroll, Linea, Blast, Mantle, Manta. Plus 1d / 7d / 30d growth %. Catch chain rotations before consensus. DefiLlama. PPE $0.001/chain.

Tracks real-time network statistics for major L1 blockchains: Ethereum, Bitcoin, Solana, Avalanche, Polygon. Gas prices, TPS, mempool depth, network load, and cross-chain cost comparison.

Live supply APR + borrow APR + utilization for USDC, USDT, ETH, WBTC on Aave V3, Compound V3, Morpho across Ethereum/Arbitrum/Optimism/Base/Polygon. Find the cheapest borrow rate and highest yield in DeFi. PPE $0.001/pool.

Real-time Lightning Network dashboard: total capacity, node/channel count and growth, Tor privacy ratio, routing fee benchmarks, and 30-day trends. Combines mempool.space and 1ML.com data. No API key required. $0.005/run.

Tracks Bitcoin Lightning Network stats: channels, nodes, total BTC capacity, fee rates, top nodes by liquidity, and historical trends. No API key. $0.005/run.

Count tokens for any text across 16+ models (Claude Opus/Sonnet/Haiku, GPT-4o, o3, Gemini 1.5, Llama, Mistral) and estimate per-million-token cost. Claude via Anthropic API (BYO key), GPT via tiktoken, others via heuristic. $0.001 per text counted.

Calculate impermanent loss for Uniswap v2-style AMM pools. Auto-fetch current prices via CoinGecko or provide manual ratios. Compares LP vs HODL P&L, factors in fee income, generates scenario sweep. $0.001/calculation.

Real-time peg health for stETH, rETH, cbETH, wstETH, weETH, frxETH, sfrxETH, ezETH. Rebasing vs reward-bearing logic handled correctly — no false depeg alerts. Spot depeg events, monitor LSD basket health. PPE $0.002/LST.

Given any Apify actor ID, generates ready-to-paste Model Context Protocol (MCP) server configs for Claude Desktop, Claude Code, and Cursor. Wraps the actor as a tool Claude can call directly. $0.005 per config.

Detect and track new memecoin launches on Solana and Base using DexScreener. Monitor price, liquidity, volume, rug risk score, and momentum labels. No API key required.

Fetch prediction questions and community forecasts from Metaculus — the rigorous research-grade forecasting platform. AI, pandemics, geopolitics, science, and more. No API key required.

Scans Morpho Protocol curated vaults (Gauntlet, Steakhouse, RE7) across Ethereum and Base: TVL, gross APY, net APY after fees, curator info. Public GraphQL API, no auth. $0.005/run.

Real-time gas prices across Ethereum, Arbitrum, Optimism, Base, Polygon, BNB + USD cost estimates for transfers and swaps. Etherscan oracle safe/propose/fast for ETH. Find cheap-gas windows across 10 chains. No API key. PPE $0.001/chain.