SCIENCE: daily historical weather (ERA5 reanalysis) for any coordinate & date range. ?lat&lng&start&end. Returns JSON.

Latest Hacker News job / hiring posts (newest first) — tech hiring-market signal. Returns JSON.

Hacker News stories matching a query (?q=rust) ranked by relevance, with points and comment counts. Returns JSON.

Recent Show HN launches ranked by points — new product / startup launch signal. Returns JSON.

HEALTH: ICD-10-CM diagnosis code lookup by text or code prefix → code + description. ?q=text or code. Returns JSON.

ECONOMICS: monthly interest expense the U.S. government pays to service the national debt, by security type. Returns JSON.

GEO: geolocate an IP address (?ip=8.8.8.8) → country, city, coordinates, timezone, ISP. Returns JSON.

SCIENCE: real-time ISS position, altitude, velocity and sunlit status. Returns JSON.

CRYPTO: Bitcoin Lightning Network state — node/channel counts, capacity, Tor vs clearnet, fee rates (mempool.space). Returns JSON.

Trader long/short account ratio per coin (OKX) — crowd sentiment (>1 = net long). Live. Returns JSON.

World Bank macro indicators by country (?country=US&indicator=FP.CPI.TOTL.ZG, default US inflation). Live. Returns JSON.

MEDIA: manga — score, rank, chapters, authors, synopsis from MyAnimeList (?q=berserk, required). Returns JSON.

Wave height/period/direction for a coastal point (?lat=&lon=) — maritime/shipping signal. Live. Returns JSON.

MARKETS: one-call live snapshot of major U.S. indices (S&P 500, Dow, Nasdaq, Russell), the VIX, and the 10-year Treasury yield. Returns JSON.

MEDIA: sports match/event lookup with scores and venue (?event=Arsenal_vs_Chelsea, required). Returns JSON.

Top podcasts or apps for a term (?term=ai&type=podcast|app) — media/marketing signal (iTunes). Live. Returns JSON.

HEALTH: prescribable-medication autocomplete (NLM RxTerms) — name + dose form. ?q=text. Returns JSON.

CRYPTO: Bitcoin mining-pool distribution over 1 week — blocks and hashrate share per pool (mempool.space). Returns JSON.

MEDIA: music tracks — artist, album, genre, preview URL (?term=daft+punk, required). Returns JSON.

SCIENCE: search NASA official image & video library (Hubble, Webb, Apollo). ?q. Returns JSON.

SCIENCE: live natural hazard events worldwide (wildfires, storms, volcanoes) with coordinates. ?category&limit. Returns JSON.

SCIENCE: asteroids making close approaches to Earth (size, velocity, miss distance, hazard flag). ?date. Returns JSON.

GEO: notable Wikipedia-documented places near a coordinate (?lat=&lon=&radius=), ranked by distance. Returns JSON.

TRANSPORT: snap a coordinate (?lat=&lon=) to the nearest drivable road segment via OSRM. Returns JSON.

LOGISTICS: the next upcoming public holidays for a country from today (?country=US). Returns JSON.

npm download counts for a package (?pkg=express) over last week and last month — real adoption signal. Returns JSON.

npm package metadata (?pkg=express): latest version, license, dependency count, maintainers, dist-tags, keywords, publish dates. Returns JSON.

npm packages matching a term (?q=react) with monthly/weekly downloads and dependent counts — discovery + adoption. Returns JSON.

MEDIA: historical events, births & deaths on a date (?date=MM/DD, defaults today) from Wikipedia. Returns JSON.

ON-CHAIN READ: read ERC-20 totalSupply / balanceOf (?chain=base&token=&holder=&decimals=) via RPC — a deterministic oracle. Returns JSON.

Perp open interest per coin (BTC/ETH/SOL/XRP/DOGE) — leverage/positioning signal (OKX). Live. Returns JSON.

CRYPTO: on-chain options protocols ranked by 24h/7d/30d notional volume (DeFiLlama). Returns JSON.

SCIENCE: everyone currently in orbit and their spacecraft. Returns JSON.

PLACE INTELLIGENCE: one call → weather alerts + air quality + UV + sea state for a location (?lat=&lon=). Returns JSON.

MEDIA: athlete profiles — team, position, nationality, bio (?player=Messi, required). Returns JSON.

MEDIA: Pokémon reference data — types, abilities, base stats (?name=pikachu, defaults pikachu). Returns JSON.

GEO: find the postal/ZIP codes covering a city (?country=us&state=CA&city=Beverly Hills). Returns JSON.

GEO: resolve a postal/ZIP code to place names + coordinates (?country=us&postal=90210). Returns JSON.

Live consolidated prediction-market feed: top active markets across Polymarket AND Kalshi in one call, normalized to {question, yesProb, volume, closeDate}. Cross-venue in a single request — cheaper than querying each. Returns JSON.

PRICE ATTESTATION: attest a live crypto or FX price (?asset=bitcoin&vs=usd) from a named source with timestamp — a data oracle. Returns JSON.

BIOMEDICAL: search UniProtKB proteins by name (default human) — accession, name, gene, length, reviewed. ?q=, ?organism=. Returns JSON.

Protocols ranked by 24h fees generated — real economic-activity signal, not hype. Live. Returns JSON.

CRYPTO: fee/revenue detail for one DeFi protocol over 24h/7d/30d/1y/all-time with chains (DeFiLlama). ?protocol=aave|uniswap|gmx. Returns JSON.

RESEARCH: latest biomedical papers by query (?q=) from PubMed — research-frontier signal. Returns JSON.

PyPI download counts for a package (?pkg=requests) over last day/week/month — Python adoption signal. Returns JSON.

PyPI package metadata (?pkg=requests): version, summary, license, author, required Python, dependency count, release history. Returns JSON.

SCIENCE: search 150M+ scholarly works via CrossRef (title, authors, DOI, citations). ?q. Returns JSON.

GEO: reverse geocode a coordinate (?lat=&lon=) to the nearest address + place metadata (OpenStreetMap). Returns JSON.

SCIENCE: real-time USGS streamflow & gage-height for a river station. ?site=USGS site number. Returns JSON.

SCIENCE: upcoming worldwide rocket launches (provider, vehicle, mission, pad, window). ?limit. Returns JSON.