Cosmic's Coast Map MCP

An MCP server providing tide times, currents, marine forecasts, warnings, and water temperature data for paddlers and anglers across 26 countries. It integrates with AI assistants like Claude and ChatGPT to answer questions about launch conditions, slack water, and weather risks using official government data sources.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-18Operated by Cosmic's Coast Map

MCP endpoint (Streamable HTTP)

https://coast.cosmicotter.ca/mcp

Vendor documentation

What you can do with it

Check tide times and heights for a specific location
Get marine wind and wave forecasts for a launch area
Find nearby tide and current stations
Check for active small craft or gale warnings

Tools advertised by the last live check:

find_stations
plan_paddle
tide_times
currents
best_low_tides
marine_forecast
marine_warnings
coast_map_pass
start_pass_purchase
pass_status
water_temperature

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 a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http cosmic-s-coast-map-mcp https://coast.cosmicotter.ca/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 cosmic-s-coast-map-mcp --url https://coast.cosmicotter.ca/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable cosmic-s-coast-map-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "cosmic-s-coast-map-mcp": {
      "url": "https://coast.cosmicotter.ca/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "cosmic-s-coast-map-mcp": {
      "type": "streamableHttp",
      "url": "https://coast.cosmicotter.ca/mcp",
      "disabled": false
    }
  }
}

VS Code

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

VS Code configuration

{
  "servers": {
    "cosmic-s-coast-map-mcp": {
      "type": "http",
      "url": "https://coast.cosmicotter.ca/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 cosmic-s-coast-map-mcp https://coast.cosmicotter.ca/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "cosmic-s-coast-map-mcp": {
      "url": "https://coast.cosmicotter.ca/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": {
    "cosmic-s-coast-map-mcp": {
      "serverUrl": "https://coast.cosmicotter.ca/mcp"
    }
  }
}

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