Hojun Lee

Screen stocks using FinViz filters. Filter by market cap, sector, P/E ratio, RSI, volume, country, EPS growth, dividend yield, and 50+ other criteria. Returns fundamentals, technical indicators, and performance data. No API key required.

Fetch posts from any Substack publication: title, author, subtitle, publication date, word count, estimated reading time, tags, and post URL. Supports multiple newsletters, keyword filtering, and date range. Uses Substack's public API. No auth needed.

Aggregate tech news from TechCrunch, The Verge, Ars Technica, Wired, Engadget, and Hacker News in one place. Supports keyword and category filtering, date range, and deduplication. Returns title, source, author, URL, published date, and summary.

Fetch bilateral trade data (exports/imports) from UN Comtrade's free Preview API. Query by reporter country, partner country, HS commodity code, and year. Ideal for tariff analysis, supply chain research, and geopolitical trade intelligence. No API key required.

Track US congressional legislation: bills, resolutions, and amendments from Congress.gov. Filter by chamber, sponsor, committee, status, topic, and date range. Returns sponsor, cosponsors, status, committee, summary, and vote data. Uses Congress.gov API.

Track AI agents on Virtuals Protocol (BASE chain). Monitor volume, price changes, mindshare, holder count, and tokenomics for 80,000+ AI agents. Filter by category, volume, and holders. No API key required.

Given an EVM address, returns public identifiers: ENS reverse name, Etherscan public nametag (CEX deposit, MEV bot, DAO multisig, etc), contract verification + name, first-tx timestamp / account age, native balance. Pre-send safety check. $0.01 per address.

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.

Track active severe weather alerts from NOAA National Weather Service: tornado warnings, hurricane watches, flood advisories, winter storms, and more. Filter by US state, county, event type, or severity. Uses NWS public API. No API key required.

Fetch current conditions, 7-day forecasts, and historical weather data for any location worldwide. Returns temperature, precipitation, humidity, wind speed, UV index, and air quality using the Open-Meteo free API. No API key required. Supports bulk location queries.

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.

Collect country-level public health statistics from the WHO Global Health Observatory (GHO) — life expectancy, infant mortality, HIV prevalence, obesity, PM2.5 exposure, alcohol consumption, and 2,000+ more indicators. Filter by country, year range, and indicator. No API key required.

Query Wikidata's SPARQL endpoint to retrieve structured knowledge data. Use preset queries for tech companies, world leaders, Nobel laureates, unicorn startups, or top universities. Supports custom SPARQL. PPE $0.002/record.

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.

Fetch YouTube channel statistics using the YouTube Data API v3: subscriber count, total views, video count, recent upload dates, top videos by views, and growth metrics. Track multiple channels. Free API with 10,000 units/day quota. API key required.

Track YouTube trending videos by country and category. Returns title, channel, view count, like count, comment count, duration, tags, and thumbnail URL. Monitor viral content, track emerging creators, and analyze trending topics using the official YouTube Data API v3 free tier.

Compute rolling correlations between BTC/ETH/SOL and traditional markets (S&P 500, Gold, DXY, US 10Y). Get 7d/30d/90d Pearson correlations, relative performance, and a risk-on/off signal. No API key required. Flat $0.005/run.

Real-time GPU mining profitability for 46+ PoW coins. Enter your GPU model, power usage, and electricity rate — get daily/monthly net profit after electricity costs. WhatToMine API, no auth required. $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.

Live floor price (USD + native), 24h/7d/30d %, market cap and 24h volume for curated NFT collections across Ethereum, Solana, Bitcoin (Ordinals/Runes), Polygon and more. Customizable collection list. Coingecko data, no API key.

Free weather forecasts using Open-Meteo API. No API key needed.