Cosmic's Coast Map is listed as active in the registry but did not answer our last check. It exposes 11 tools.
Tides, currents, marine forecasts and warnings for paddlers, anglers and small boats, 26 countries.
Uptime history
16 days of history · worst day 25%
16 days agonow
25.3%
Uptime 24h
23 of 91 checks
11
Tools
read from the server
343 ms
Response time
average over 24h
open, no key
Access
streamable-http
Cosmic's Coast Map does not always answer
Over the last week it answered 55.2% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
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 coast-map --transport http https://coast.cosmicotter.ca/mcpSettings → Connectors → Add custom connector, then paste this address
https://coast.cosmicotter.ca/mcp~/.codex/config.toml
[mcp_servers.coast-map]
url = "https://coast.cosmicotter.ca/mcp".cursor/mcp.json
{
"mcpServers": {
"coast-map": {
"url": "https://coast.cosmicotter.ca/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"coast-map": {
"type": "http",
"url": "https://coast.cosmicotter.ca/mcp"
}
}
}Available tools 11
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
marine
marine_forecast
Hourly wind and gusts (knots), direction, temperature, rain, fog and thunder risk for the next 48 hours, plus wave height and period, from Environment Canada (HRDPS/GDWPS), the US National Weather Service or MET Norway.
marine_warnings
Marine warnings (gale, storm, small craft…) in effect for the marine forecast area at a point.
best
best_low_tides
The lowest daylight low tides over the next days (default 30, up to 90 with a pass key), marking the good ones for clamming, foraging and tide pools.
coast
coast_map_pass
What the Coast Map Pass adds over the free map (offline regions for trips with no signal; longer tide and current ranges for assistants), its prices (CA$5 a month or CA$55 a year), whether it is on sale yet, and the purchase or support links. Covers offline use, longer tide ranges and upgrading.
currents
currents
Slack water and maximum flood/ebb times and speeds at a current station, in local time. Up to 7 days free; longer with a Coast Map Pass key.
pass
pass_status
Checks whether the payment for a purchase reference has completed. Returns pending (with a retry interval) or paid with the pass key, which is sent as "Authorization: Bearer <key>" from then on, plus a link that activates the pass in the user's own map.
plan
plan_paddle
One call that answers "what will the water be like at this spot?": the nearest tide station with 2 days of highs and lows, currents nearby, the next 24 h of wind, gusts and waves with the maxima, warnings in effect, water temperature and sunrise/sunset, with the important heads_up lines listed first.
start
start_pass_purchase
Begin a Coast Map Pass purchase without leaving the conversation: returns checkout links (CA$5 a month or CA$55 a year, Stripe, no account) tagged with a purchase reference, or says the pass is not on sale yet. The user pays in their browser; the reference identifies that payment afterwards.
stations
find_stations
Nearest tide stations (high/low times) and current stations (slack water, max flood/ebb) to a point, with distance and time zone. Coverage: Canada, the US, Norway, Ireland, the Netherlands, New Zealand, Australia (Queensland) and modelled tides elsewhere.
tide
tide_times
High and low tides with heights, in the station's local time. Up to 7 days ahead free; longer ranges (up to 90 days) need the user's Coast Map Pass key.
water
water_temperature
Water temperature from the nearest buoy within 40 km, otherwise satellite sea surface temperature.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://coast.cosmicotter.ca/mcp | streamable-http | answering | 52 ms | 9 min ago |
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Cosmic's Coast Map — questions
Answers built from our own checks of this server.
What can Cosmic's Coast Map do?
It exposes 11 tools, read directly from the server on our last check. Among them: best_low_tides, coast_map_pass, currents, find_stations, marine_forecast, marine_warnings and 5 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 Cosmic's Coast Map working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 23 of 91 checks got a reply (25.3%), average response time 343 ms. The bar chart above shows every period we have measured.
The registry lists Cosmic's Coast Map as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Cosmic's Coast Map?
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 Cosmic's Coast Map need an API key?
No. Cosmic's Coast Map completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 11 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Cosmic's Coast Map?
It answers our handshake in 343 ms on average, which is faster than 41% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.