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TidesAtlas MCP Server

by tidesatlas Your server? Claim it
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TidesAtlas is answering right now. Last checked 9 min ago. It exposes 10 tools. Last commit 24 Oct 2026.

Worldwide tide times and heights, marine weather, sea temperature, sun and moon for 13,000+ ports.

Uptime history 4 days of history
4 days agonow
100.0%
Uptime 24h
91 of 91 checks
10
Tools
read from the server
209 ms
Response time
average over 24h
0
Stars
last commit 24 Oct 2026

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 4 November 2026. No other catalogue keeps this.

4 Nov a tool description was rewritten get_tides

Nothing serious here today

Today is the operative word: we check TidesAtlas every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

run in your terminal
claude mcp add tides --transport http https://tidesatlas.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://tidesatlas.com/mcp
~/.codex/config.toml
[mcp_servers.tides]
url = "https://tidesatlas.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "tides": {
      "url": "https://tidesatlas.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "tides": {
      "type": "http",
      "url": "https://tidesatlas.com/mcp"
    }
  }
}

Available tools 10

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

astronomy
get_astronomy
Get sun and moon data: sunrise, sunset, dawn, dusk, day length, moon phase, illumination, moonrise, moonset.
conditions
get_conditions
Get unified weather + marine + astronomy data in one call. More efficient than calling each separately.
countries
list_countries
List all 188 countries that have tide stations, with their station counts and ISO codes.
history
get_history
Get historical tide predictions and weather data for past dates. Tides up to 365 days, weather up to 90 days.
marine
get_marine
Get ocean and wave forecast (wave height, swell, sea state on Douglas scale). Returns hourly and daily data.
observations
get_observations
Get real-time sea level observations from REFMAR/SHOM tide gauges (French stations only). Returns 10-minute interval readings.
ports
search_ports
Search for tide stations by name or country. Returns port name, slug, coordinates, timezone, country.
radar
get_radar
Get rain radar tile URLs for a location. Returns past frames and short-term nowcast frames for map overlays.
tides
get_tides
Get tide predictions (high/low water times and heights) for a port or coordinates. Returns extremes with datetime, height in meters, and type (high/low). Supports 13,000+ stations in 180 countries.
weather
get_weather
Get weather forecast (temperature, wind, precipitation, UV, conditions) for a port or coordinates. Returns hourly and daily data.

Endpoints

URLTransportStateLatencyChecked
https://tidesatlas.com/mcp streamable-http answering 179 ms 9 min ago

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TidesAtlas — questions

Answers built from our own checks of this server.

What can TidesAtlas do?
It exposes 10 tools, read directly from the server on our last check. Among them: get_astronomy, get_conditions, get_history, get_marine, get_observations, get_radar and 4 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is TidesAtlas working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 209 ms. The bar chart above shows every period we have measured.
How do I connect TidesAtlas?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does TidesAtlas need an API key?
No. TidesAtlas completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is TidesAtlas?
It answers our handshake in 209 ms on average, which is faster than 69% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is TidesAtlas open source?
The code is open source: it is published under the MIT licence and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at tidesatlas.com, which runs on its operator's own terms.