Mariner GPS Tools

com.watchandnavy/mariner-gps-tools · v1.0.1

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Not declared (tools carry no read/destructive hints)
Capabilities declared	tools
Tool definitions	6 tools · with description 100% · input schema is an object 100% · read/destructive hints 0%

Marine navigation calculators for GPS distance, bearing, cross track error, coordinates and speed.

streamable-http · https://marinergps.tools/mcp

claude mcp add --transport http mariner-gps-tools https://marinergps.tools/mcp

{
  "mcpServers": {
    "mariner-gps-tools": {
      "url": "https://marinergps.tools/mcp"
    }
  }
}

convert_speed
Convert a speed value between knots, mph, km/h, m/s, and ft/s.
convert_coordinates
Parse latitude and longitude and format them as decimal degrees or DMS.
calculate_distance
Calculate great-circle and rhumb-line routes between two GPS coordinates.
calculate_bearing
Calculate the initial true bearing between two GPS coordinates.
calculate_cross_track_error
Calculate cross track error (XTE) — the perpendicular distance from a vessel position to the great-circle track between two waypoints — plus side of track (port/starboard) and along-track distances.
list_tools
List the public Mariner GPS Tools calculators currently available.

Website · JSON · Text for agents · Registry updated 2026-10-03