TidesAtlas
com.tidesatlas/tidestidesatlas.comstreamable-httpv1.1.0Scanned
Worldwide tide times and heights, marine weather, sea temperature, sun and moon for 13,000+ ports.
10 tools: 10 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
Run the operations that matter as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
10 tools
Only reads 10Show 10 read-only tools
get_astronomyGet sun and moon data: sunrise, sunset, dawn, dusk, day length, moon phase, illumination, moonrise, moonset.No findings
Why it is in this group
- The name "get_astronomy" says "get": a word for reading.
Description, as the server wrote it Get sun and moon data: sunrise, sunset, dawn, dusk, day length, moon phase, illumination, moonrise, moonset.
get_conditionsGet unified weather + marine + astronomy data in one call.No findings
Why it is in this group
- The name "get_conditions" says "get": a word for reading.
Description, as the server wrote it Get unified weather + marine + astronomy data in one call. More efficient than calling each separately.
get_historyGet historical tide predictions and weather data for past dates.No findings
Why it is in this group
- The name "get_history" says "get": a word for reading.
Description, as the server wrote it Get historical tide predictions and weather data for past dates. Tides up to 365 days, weather up to 90 days.
get_marineGet ocean and wave forecast (wave height, swell, sea state on Douglas scale).No findings
Why it is in this group
- The name "get_marine" says "get": a word for reading.
Description, as the server wrote it Get ocean and wave forecast (wave height, swell, sea state on Douglas scale). Returns hourly and daily data.
get_observationsGet real-time sea level observations from REFMAR/SHOM tide gauges (French stations only).No findings
Why it is in this group
- The name "get_observations" says "get": a word for reading.
Description, as the server wrote it Get real-time sea level observations from REFMAR/SHOM tide gauges (French stations only). Returns 10-minute interval readings.
get_radarGet rain radar tile URLs for a location.No findings
Why it is in this group
- The name "get_radar" says "get": a word for reading.
Description, as the server wrote it Get rain radar tile URLs for a location. Returns past frames and short-term nowcast frames for map overlays.
get_tidesGet tide predictions (high/low water times and heights) for a port or coordinates.No findings
Why it is in this group
- The name "get_tides" says "get": a word for reading.
Description, as the server wrote it 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 18,400+ stations worldwide.
get_weatherGet weather forecast (temperature, wind, precipitation, UV, conditions) for a port or coordinates.No findings
Why it is in this group
- The name "get_weather" says "get": a word for reading.
Description, as the server wrote it Get weather forecast (temperature, wind, precipitation, UV, conditions) for a port or coordinates. Returns hourly and daily data.
list_countriesList all 188 countries that have tide stations, with their station counts and ISO codes.No findings
Why it is in this group
- The name "list_countries" says "list": a word for reading.
Description, as the server wrote it List all 188 countries that have tide stations, with their station counts and ISO codes.
search_portsSearch for tide stations by name or country.No findings
Why it is in this group
- The name "search_ports" says "search": a word for reading.
Description, as the server wrote it Search for tide stations by name or country. Returns port name, slug, coordinates, timezone, country.
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.1.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http tides https://tidesatlas.com/mcp --header 'X-API-Key: <your-x-api-key>'claude mcp add --transport http tides https://tidesatlas.com/mcp --header 'X-API-Key: <your-x-api-key>'Run in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__tides__get_tides",
"mcp__tides__search_ports",
"mcp__tides__list_countries",
"mcp__tides__get_weather",
"mcp__tides__get_marine",
"mcp__tides__get_astronomy",
"mcp__tides__get_conditions",
"mcp__tides__get_history",
"mcp__tides__get_observations",
"mcp__tides__get_radar"
],
"ask": [],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as tides. Review it before you use it.
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/com.tidesatlas/tides/verify?hash=b9d218cffd36048a921e0a52cc2524116a66f6e303f10d585bd423f83ed156c2" | jq -e '.changed == false'Pinned hash b9d218cffd36, from Nov 3, 2026, 10:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/com.tidesatlas/tides/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/com.tidesatlas/tides)Source: MCP Registry. Synced Nov 3, 2026, 10:17 UTC.