TidesAtlas MCP

An official MCP server provided by TidesAtlas that allows AI agents to access worldwide tide times, heights, marine weather, sea temperature, and astronomical data for over 13,000 ports. It exposes 8 tools including tides, ports, countries, weather, marine, astronomy, conditions, and history, enabling integration with platforms like Claude and Cursor.

Visit TidesAtlas

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Vendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-06Operated by TidesAtlas

You need:Get your API key

MCP endpoint (Streamable HTTP)

https://tidesatlas.com/mcp

Vendor documentation

What its tools do

10 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

10 of 10 have a description · 10 of 10 declare behavior hints · 9 of 9 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 6, 2026, 11:52 PM UTC
Passed Official MCP Registry namespace is tied to tidesatlas.com · Nov 6, 2026, 11:48 PM UTC
Passed Endpoint is on the registry namespace domain · Nov 6, 2026, 11:48 PM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Fetch tide times and heights for specific ports or coordinates
Retrieve marine weather and sea temperature data
Access astronomical data such as sun and moon phases
List available ports and countries for tide predictions

Source and maintenance

Vendor evidenceRegistry 1.1.1

mcp-registry: com.tidesatlas/tides@1.1.1 Source repository Project website

Maintenance checked: Nov 6, 2026, 11:48 PM UTC

Protocol and capabilities

Server: TidesAtlas 1.1.0
MCP protocol negotiated in check: 2024-11-05
Tools: 10 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {}
}

Tools

10 advertised

get_tides

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

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.

get_tides input schema

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "description": "Latitude (-90 to 90). Alternative to port — finds the nearest station."
    },
    "lon": {
      "type": "number",
      "description": "Longitude (-180 to 180). Must be used with lat."
    },
    "date": {
      "type": "string",
      "description": "Start date in YYYY-MM-DD format (default: today)."
    },
    "days": {
      "type": "integer",
      "maximum": 14,
      "minimum": 1,
      "description": "Number of days, 1-14 (default: 1)."
    },
    "port": {
      "type": "string",
      "description": "Station slug, e.g. \"aberdeen\" or \"san-francisco\". Use search_ports to find slugs."
    },
    "datum": {
      "enum": [
        "LAT",
        "MSL",
        "MLLW",
        "MHW",
        "MLW",
        "MHHW",
        "MTL",
        "HAT"
      ],
      "type": "string",
      "description": "Vertical datum: LAT, MSL, MLLW, MHW, MLW, MHHW, MTL, HAT (default: native datum of station)."
    }
  }
}

get_tides annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

search_ports

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Search for tide stations by name or country. Returns port name, slug, coordinates, timezone, country.

search_ports input schema

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 500,
      "minimum": 1,
      "description": "Max results, 1-500 (default: 50)."
    },
    "search": {
      "type": "string",
      "description": "Search by station name (partial match)."
    },
    "country": {
      "type": "string",
      "description": "Filter by country slug, e.g. \"united-kingdom\" or \"france\"."
    }
  }
}

search_ports annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

list_countries

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

List all 188 countries that have tide stations, with their station counts and ISO codes.

list_countries input schema

{
  "type": "object",
  "properties": {}
}

list_countries annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

get_weather

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Get weather forecast (temperature, wind, precipitation, UV, conditions) for a port or coordinates. Returns hourly and daily data.

get_weather input schema

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "description": "Latitude."
    },
    "lon": {
      "type": "number",
      "description": "Longitude."
    },
    "days": {
      "type": "integer",
      "maximum": 7,
      "minimum": 1,
      "description": "Forecast days, 1-7 (default: 3)."
    },
    "port": {
      "type": "string",
      "description": "Station slug."
    }
  }
}

get_weather annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

get_marine

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Get ocean and wave forecast (wave height, swell, sea state on Douglas scale). Returns hourly and daily data.

get_marine input schema

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "description": "Latitude."
    },
    "lon": {
      "type": "number",
      "description": "Longitude."
    },
    "days": {
      "type": "integer",
      "maximum": 7,
      "minimum": 1,
      "description": "Forecast days, 1-7 (default: 3)."
    },
    "port": {
      "type": "string",
      "description": "Station slug."
    }
  }
}

get_marine annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

get_astronomy

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Get sun and moon data: sunrise, sunset, dawn, dusk, day length, moon phase, illumination, moonrise, moonset.

get_astronomy input schema

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "description": "Latitude."
    },
    "lon": {
      "type": "number",
      "description": "Longitude."
    },
    "date": {
      "type": "string",
      "description": "Start date YYYY-MM-DD (default: today)."
    },
    "days": {
      "type": "integer",
      "maximum": 7,
      "minimum": 1,
      "description": "Number of days, 1-7 (default: 1)."
    },
    "port": {
      "type": "string",
      "description": "Station slug."
    }
  }
}

get_astronomy annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

get_conditions

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Get unified weather + marine + astronomy data in one call. More efficient than calling each separately.

get_conditions input schema

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "description": "Latitude."
    },
    "lon": {
      "type": "number",
      "description": "Longitude."
    },
    "days": {
      "type": "integer",
      "maximum": 7,
      "minimum": 1,
      "description": "Forecast days, 1-7 (default: 3)."
    },
    "port": {
      "type": "string",
      "description": "Station slug."
    },
    "include": {
      "type": "string",
      "description": "Comma-separated list: weather,marine,astronomy (default: all three)."
    }
  }
}

get_conditions annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

get_history

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Get historical tide predictions and weather data for past dates. Tides up to 365 days, weather up to 90 days.

get_history input schema

{
  "type": "object",
  "required": [
    "port",
    "date"
  ],
  "properties": {
    "date": {
      "type": "string",
      "description": "Start date in the past, YYYY-MM-DD (required)."
    },
    "days": {
      "type": "integer",
      "maximum": 365,
      "minimum": 1,
      "description": "Number of days, 1-365 (default: 7)."
    },
    "port": {
      "type": "string",
      "description": "Station slug (required)."
    },
    "include": {
      "type": "string",
      "description": "Comma-separated: tides,weather (default: tides)."
    }
  }
}

get_history annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

get_observations

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Get real-time sea level observations from REFMAR/SHOM tide gauges (French stations only). Returns 10-minute interval readings.

get_observations input schema

{
  "type": "object",
  "required": [
    "port"
  ],
  "properties": {
    "date": {
      "type": "string",
      "description": "Start date YYYY-MM-DD (default: today)."
    },
    "days": {
      "type": "integer",
      "maximum": 7,
      "minimum": 1,
      "description": "Number of days, 1-7 (default: 1)."
    },
    "port": {
      "type": "string",
      "description": "Station slug (must be a French REFMAR station)."
    }
  }
}

get_observations annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

get_radar

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Get rain radar tile URLs for a location. Returns past frames and short-term nowcast frames for map overlays.

get_radar input schema

{
  "type": "object",
  "properties": {
    "lat": {
      "type": "number",
      "description": "Latitude."
    },
    "lon": {
      "type": "number",
      "description": "Longitude."
    },
    "port": {
      "type": "string",
      "description": "Station slug."
    }
  }
}

get_radar annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (3 of 3 answered).

2026-11-07: 2 of 2 checks answered
2026-11-09: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 1208 ms
95th percentile latency: 1208 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 6, 2026, 11:52 PM UTC · probe · passed · 1208 ms · metadata changed · 10 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http tidesatlas-mcp https://tidesatlas.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add tidesatlas-mcp --url https://tidesatlas.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable tidesatlas-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "tidesatlas-mcp": {
      "url": "https://tidesatlas.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "tidesatlas-mcp": {
      "type": "streamableHttp",
      "url": "https://tidesatlas.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start tidesatlas-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "tidesatlas-mcp": {
      "type": "http",
      "url": "https://tidesatlas.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http tidesatlas-mcp https://tidesatlas.com/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://tidesatlas.com/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "tidesatlas-mcp": {
      "serverUrl": "https://tidesatlas.com/mcp"
    }
  }
}

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Do you run TidesAtlas MCP?

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TidesAtlas MCP

Endpoint and access

What its tools do

Read-only (10)

Checks and signals

What you can do with it

Source and maintenance

Protocol and capabilities

Tools

Prompts

Resources

90-day uptime

30-day availability

Maintenance history

Connect from your client

Claude Code

Codex

Cursor

Cline

VS Code

Gemini CLI

Claude Desktop

Windsurf

Let your agent find its tools

Other data and analytics servers

Do you run TidesAtlas MCP?