River Level Tracker: USGS Real-Time Gauges

NOAA Tides & Water Level Predictions API

koalastuff/noaa-tides-water-level-monitor

Retrieve bounded NOAA CO-OPS tide predictions and water-level observations by station, date, datum, and interval for maritime and coastal data workflows.

USGS Streamflow & Water Levels Scraper API

pink_comic/usgs-streamflow-water-levels

Query USGS NWIS Instantaneous Values for bounded streamflow, discharge, gage-height, and water-monitoring observations by site or geography. Returns one source-linked row per site/parameter series with qualifiers, units, methods, and optional bounded history.

Current tide and water level readings from official NOAA coastal and Great Lakes stations, by state or station ID: water level, water temperature, air temperature or air pressure. For port operations, shipping, marine businesses and coastal engineering teams.

Track new dev.to articles by tag. Get title, description, author, reaction/comment counts, and link the moment a new post goes live, for content research and topic monitoring.

Track new published versions and deprecation warnings for npm packages you depend on. Get the version, publish date, and deprecation status the moment it changes. For engineering and security teams monitoring dependencies without checking npm by hand.

SEC 13D/13G Tracker: New 5% Stake Filings

m_ctim/sec-13d-ownership-tracker

Track new SEC Schedule 13D and 13G filings — the disclosure an investor files within days of acquiring 5%+ ownership of a public company. 13D signals activist intent; 13G signals a passive stake. Search by ticker or keyword.

Look up nonprofits by name or EIN and get their most recent Form 990 filings: revenue, expenses, assets, and a link to the filed PDF. For journalists, donors, and grantmakers doing due diligence without digging through IRS filings by hand.

arXiv Paper Tracker: New Preprints by Topic

m_ctim/arxiv-preprint-tracker

Track new research preprints on arXiv by keyword and/or category (cs.AI, econ.GN, stat.ML, and more). Get title, authors, abstract, category, and PDF link the moment a paper is submitted.

Search new consumer complaints filed with the Consumer Financial Protection Bureau against banks, lenders, and financial-service companies. Filter by company, product line, state, and date range. For reputation monitoring, competitive intelligence, and compliance teams.

Volcano Alert Tracker: USGS Elevated Volcanoes

m_ctim/volcano-alert-tracker

Every U.S. volcano at an elevated alert level right now, from the official USGS Volcano Hazards Program: alert level, aviation color code, observatory and the latest notice. For aviation and flight operations, disaster preparedness and insurance teams, and researchers.