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Where Boats Anchor MCP Server

by whereboatsanchor Your server? Claim it
answering

Where Boats Anchor is answering right now. Last checked 15 min ago. It exposes 4 tools.

Where boats stayed the night, and in what wind, at anchorages worldwide, with tonight's forecast.

Uptime history 4 days of history · worst day 99%
4 days agonow
100.0%
Uptime 24h
91 of 91 checks
4
Tools
read from the server
359 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 4

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 31 October 2026. No other catalogue keeps this.

2 Nov a tool description was rewritten find_anchorages
1 Nov a tool description was rewritten find_anchorages
31 Oct a tool description was rewritten find_anchorages
31 Oct a tool changed the parameters it asks for find_anchorages

Where Boats Anchor missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

run in your terminal
claude mcp add anchorages --transport http https://whereboatsanchor.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://whereboatsanchor.com/mcp
~/.codex/config.toml
[mcp_servers.anchorages]
url = "https://whereboatsanchor.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "anchorages": {
      "url": "https://whereboatsanchor.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "anchorages": {
      "type": "http",
      "url": "https://whereboatsanchor.com/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

anchorages
find_anchorages
Lists the places near a position where boats stopped, overnight or by day, with where boats stayed in tonight's forecast there or in a given wind. For tonight, call it without wind_from and wind_kn: the answer then carries tonight's forecast at the position and each place's nights in each of tonight's winds, as the site's Tonight does. Give a wind only to ask about that wind. Each place comes with how far and which way it lies from the position (e.g. 0.5 NM SW), its nights, where it is, its page and its place on the map. With a wind, each place gets its nights in that wind, split by strength, with the gusts on those nights (kt), and the list is sorted by those nights. A wind is counted as the site counts it: its compass point at 10 or 20 kt or more, as the forecast's band (e.g. wind_kn 15 counts E 10 kt or more). wind_from alone counts the direction at any strength. Under 3 kt (wind_kn in whole knots) the wind has no settled direction, so every night counts. A night counts once, in the wind it blew from most. Tonight is counted as the site's Tonight counts it: tonight's forecast times that are night there, each counted in its compass point at 10 or 20 kt or more, as its band (every night under 3 kt), and each place's fewest nights in any one of them. Where a place faces open water and tonight's swell there is 0.5 m or more, the nights of that count that also had that swell are given beside it, as on the site. The swell never changes the count. Places with a night in every one of tonight's winds come first, by those fewest nights, then the rest. Without a forecast, by distance. Positions are WGS84 decimal degrees.
bay
get_bay_evidence
What boats did at one place, as its page on the site shows it. Its nights. Its nights by the eight compass points the wind blew from, split under 10, 10 to 20 and 20 kt or more, with the different boats and the windiest night of each. Its boats by length and type (cells under 3 boats null), its day stops by wind, its nights by swell direction where its page shows them, and the places nearby with how far and which way. It carries tonight's forecast at the place: the night's strongest forecast wind and the place's nights in that wind, as its page's Tonight shows it. Give bay_id, or name with near (WGS84 decimal degrees) to rank places of one name. Several places of one name come back as candidates.
climatology
get_climatology
Wind through the year at a place, as its page shows it: for each month, the nights whose strongest hour reached 20 kt and 30 kt, each year's fewest and most of them, the commonest directions of the nights of 20 kt or more, and the strongest gust, over ten years, for the area round the place. The first call for an area can answer preparing, then ready a few minutes later.
regions
list_regions
The site's directory of places where boats stayed the night. Without a country: each country with its number of places. With a country (directory slug or ISO code): its regions and cruising areas with their number of places. Each with the address of its directory page.

Endpoints

URLTransportStateLatencyChecked
https://whereboatsanchor.com/mcp streamable-http answering 329 ms 15 min ago

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Where Boats Anchor — questions

Answers built from our own checks of this server.

What can Where Boats Anchor do?
It exposes 4 tools, read directly from the server on our last check. Among them: find_anchorages, get_bay_evidence, get_climatology, list_regions. 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 Where Boats Anchor working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 359 ms. The bar chart above shows every period we have measured.
How do I connect Where Boats Anchor?
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 Where Boats Anchor need an API key?
No. Where Boats Anchor completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Where Boats Anchor?
It answers our handshake in 359 ms on average, which is faster than 38% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.