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io.github.aybeeare/water-conditions

Official registry Maps, travel and weather

Real-time water temperature and tides for 8,000+ locations, by name or lat/long coordinates.

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

PYPI package water-conditions-mcp
Claude Code 
claude mcp add water-conditions -- uvx water-conditions-mcp==1.1.0
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "water-conditions": {
            "command": "uvx",
            "args": [
                "water-conditions-mcp==1.1.0"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Get real-time water temperature and tide prediction data for any lake, river, ocean, bay, or beach by name or latitude/longitude coordinates. Data sourced live from NOAA CO-OPS, USGS, and seatemperature.info, with automatic nearest-station matching for coordinate inputs. Coverage includes 8,000+ named locations across North America and major international bodies, with string to coordinate geocoding for fallback.

mcp-name: io.github.aybeeare/water-conditions

Roadmap: national sensor network expansion

Today's accuracy hierarchy is USGS/NOAA (real government sensors, ground-truth for the exact station) > seatemperature.info (best-guess aggregator, no known dedicated sensor network, used for everywhere else via geocoding). The plan is to extend the first tier — real sensor networks, wired in the same way as USGS/NOAA — country by country, rather than leaning on the aggregator fallback long-term. Goal: a genuine "super API" blending national sensor networks the way this project already blends USGS + NOAA.

Confirmed and ready to integrate (free, open, no API key required):

  • UK Environment Agency — best next candidate. Hydrology API (river flows/levels/groundwater, ~8,000 stations, 15-min resolution) + Flood Monitoring API (river/tide levels) — same openness and simplicity as USGS/NOAA, Open Government Licence.
  • France SHOM/REFMAR — ~100 real-time tide gauges, Licence Etalab 2.0.

Investigated, more complex integration:

  • Copernicus Marine Service (EU/global sea surface temperature, satellite + in-situ) — free and authoritative, but the bulk data products are scientific-grade (NetCDF via a Python toolbox) rather than simple per-station JSON. Has a REST "In Situ Dashboard" worth a closer look.

Investigated, unclear near-term path:

  • East Asia (Japan JMA/JODC, Korea KMA) — both have relevant agencies, but access looked more fragmented/licensed than the UK case in an initial search (Japan's tide data appears to route through an authorized distributor, not a clean open endpoint). Needs real investigation before committing — not a near-term target.

North America (USGS/NOAA) + Europe (UK EA, France SHOM) covers the current priority footprint well. Everything else stays on the geocoding + seatemperature.info fallback until/unless a specific region's sensor network turns out to be worth the integration effort.

Checking MCP activity (owner only)

Every call to the get_water_conditions tool is logged in the database. To pull a summary from the live server:

1. One-time setup — set ACTIVITY_API_KEY in Railway (already done). Note the value somewhere safe.

2. Run the activity script — open a terminal in this project folder and run these two commands:

$env:ACTIVITY_API_KEY="your-secret-here"
python scripts/activity.py

This prints total calls, unique locations queried, success rate, and the last 50 individual calls with timestamps and temperatures.

The $env: line only needs to be run once per terminal session. After that you can re-run python scripts/activity.py as many times as you like.

Frequently asked questions

What is io.github.aybeeare/water-conditions?

Real-time water temperature and tides for 8,000+ locations, by name or lat/long coordinates.

How do I install io.github.aybeeare/water-conditions?

It runs on your machine. In Claude Code: claude mcp add water-conditions -- uvx water-conditions-mcp==1.1.0. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.aybeeare/water-conditions need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.aybeeare/water-conditions open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains io.github.aybeeare/water-conditions?

It is published by aybeeare. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.