Ponderable Hydrometer

Stock market data from Yahoo Finance in one actor: historical prices (OHLCV, any range or interval), dividends and splits, live quotes, fundamentals and earnings, and the full options chain with implied volatility and open interest — plus news. Stocks, ETFs, crypto, forex. Keyless.

Search GitHub repositories, users and issues by query, or pull full detail for a single repo — stars, forks, topics, language, license, dates. Good for finding projects in a niche or tracking who is building what. Free API, token optional.

Tide predictions and observed water levels for any NOAA station: high and low tide times, currents, water temperature and wind. Built for the 'when can I get the boat out' question in fishing, sailing and coastal apps. Free and keyless.

Scrape Apple Podcasts — search or look up shows, get metadata (genre, RSS feed, artwork) and full episode lists via Apple's public iTunes API. No key, no proxies.

Get full Apple App Store app metadata — pricing, category, developer, version, ratings — plus keyword search and recent reviews, not just a review dump. Look up by id, URL, bundle id or keyword via Apple's public iTunes APIs. No proxies, no login.

Search arXiv preprints — title, abstract, authors, categories, PDF link, DOI & journal ref. Full arXiv query syntax. Free keyless API. For research, LLM datasets & alerts.

Search Australian federal legislation (legislation.gov.au) — Acts, legislative & notifiable instruments with title, dates, status and register links. Free, no key.

Live Berlin/Brandenburg public transport (VBB) — departures with real-time delays and platforms, stop search and multi-leg journey planning. Free, no key.

Search ClinicalTrials.gov (500k+ studies) by condition, drug, sponsor or status. Structured data: phase, enrollment, sponsor, locations. Official free API, no key.

Scrape US Congress data — bills, enacted laws and members with titles, actions, sponsors and dates. Bring your own free api.data.gov key.

Search US court opinions and case law from CourtListener (Free Law Project) — case name, court, date, docket, citation and judge. Free, optional key for higher limits.

Search 150M+ scholarly works from CrossRef — DOI, title, authors, journal, publisher, citations & dates. Filter by date & type. Free keyless API.

Search Discogs for music releases — artist, label, genre, tracklist, ratings, lowest price & copies for sale. Free API, no key. For collectors, resellers & apps.

Fetch earthquake events from USGS — magnitude, place, coordinates, depth, tsunami & alert. Filter by time, magnitude, bbox or radius. Free keyless API.

Search eBay for auto parts with live prices, seller data, vehicle fitment check and an OE/Premium/Mid/Budget brand-quality tier. Bring your own free eBay developer key.

Scrape the US Code of Federal Regulations (eCFR) — full regulatory text structured by section with citations and hierarchy. Any title, part, point-in-time date. Free, no key.

Track FDA drug, device and food recalls via the official openFDA API. Filter by date, class or firm. Structured data: firm, reason, class, status. Free, no key.

Scrape the US Federal Register — rules, proposed rules, notices and presidential documents with title, agencies, dates, abstract and full text. Filter by type and date. Free, no key.

Scrape German federal statutes from gesetze-im-internet.de — full text structured by paragraph (§), with law title and abbreviation. Free, no key.

Look up legal entities worldwide from the GLEIF LEI database. Search by company name or LEI code and get legal name, registered address, jurisdiction, registration number, legal form, status, parent company and BIC. Keyless, structured, joinable.

Google Trends data as clean JSON. Compare up to 5 search terms, get interest over time or interest by region, any country and timeframe. Survives Google's rate limiting by rotating IPs automatically instead of failing the run.

Search Hacker News stories & comments by keyword, author, points or date. Monitor keywords, domains & users. Free Algolia HN API, no key. For research, PR & alerts.

Amateur radio data — US callsign lookup (Callook/FCC), Parks on the Air (POTA) parks and live activator spots, and Summits on the Air (SOTA) summits. Free keyless APIs.

Find where to watch any movie or TV show — streaming, rent and buy offers with providers, prices, quality and deep links, across 140+ countries. Search by title or browse a service. Keyless, with IMDb/TMDB IDs.