Moving Polygons MCP Server

by movingpolygons Your server? Claim it

not responding

Moving Polygons is listed as active in the registry but did not answer our last check. It exposes 14 tools.

Create, edit and publish animated historical maps in your Moving Polygons account.

Uptime history 17 days of history · worst day 0%

17 days agonow

0.0%

Uptime 24h

0 of 91 checks

Tools

read from the server

79 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 5

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 23 October 2026. No other catalogue keeps this.

25 Oct a tool description was rewritten publish_map

25 Oct a tool changed the parameters it asks for get_public_map

23 Oct 3 tools appeared finish_map_upload, start_map_upload, upload_map_part

Moving Polygons does not always answer

Over the last week it answered 0.0% 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 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add maps --transport http https://www.movingpolygons.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://www.movingpolygons.com/mcp

~/.codex/config.toml

[mcp_servers.maps]
url = "https://www.movingpolygons.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "maps": {
      "url": "https://www.movingpolygons.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "maps": {
      "type": "http",
      "url": "https://www.movingpolygons.com/mcp"
    }
  }
}

Available tools 14

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

map

create_map

Create a new private draft map from an import JSON of up to about 1 MB.

get_map

A summary of one of the user's maps (layers, keyframe dates, markers) and a 15-minute download link for its full import JSON, which can be several MB.

maps

list_maps

The user's maps, most recently changed first, with their ids and links.

search_maps

Find published animated maps on Moving Polygons (history, wars, empires, borders, epidemics, sea ice…) by words in their title or description and/or a year they cover. Returns links to the interactive map, its text version and its article.

upload

create_upload_link

A one-off link (valid 15 minutes) for uploading a map JSON file of up to 40 MB with curl. It creates a new draft map, or with mode replace overwrites an existing map's content. The curl output reports the result.

upload_map_part

Stores one numbered piece of a chunked map upload. The pieces are joined in part order with nothing in between; sending a part number again replaces that part. Returns the piece's length and SHA-256.

account

get_account

The signed-in user's public handle, plan and how many maps they can still create.

finish

finish_map_upload

Joins parts 1 to the given count of a chunked upload, validates the map and creates the draft map (or replaces the map's content, keeping a backup). Reports missing parts or where the JSON breaks.

import

get_import_format

The JSON format for maps: layers with timed polygon keyframes, point markers and a style.

public

get_public_map

One published map as Markdown: description and sources, the timeline of keyframes (date and caption), layers, events, and the iframe code to embed the interactive map. Pass its URL, or the handle and slug.

publish

publish_map

Make one of the user's maps public at its /map/<handle>/<slug> link, where anyone can view it. The user must first choose a username at https://www.movingpolygons.com/settings; until then this fails and says so.

replace

replace_map_content

Overwrite an existing map's layers, markers, name, description and casualty bar (and style, if given) with an import JSON of up to about 1 MB. The link and publish state stay; the old content is backed up.

start

start_map_upload

Opens an upload (valid 2 hours) for a map JSON text that is sent in numbered parts through tool calls rather than over the network. It creates a new draft map, or with mode replace overwrites an existing map's content.

unpublish

unpublish_map

Make one of the user's maps private again (its public link stops working).

Endpoints

URL	Transport	State	Latency	Checked
https://www.movingpolygons.com/mcp	streamable-http	answering	79 ms	6 min ago

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Moving Polygons — questions

Answers built from our own checks of this server.

What can Moving Polygons do?

It exposes 14 tools, read directly from the server on our last check. Among them: create_map, create_upload_link, finish_map_upload, get_account, get_import_format, get_map and 8 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 →

What is Moving Polygons mostly used for?

Its tools cluster around upload, map and maps. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Moving Polygons working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 79 ms. The bar chart above shows every period we have measured.

The registry lists Moving Polygons 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 Moving Polygons?

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 Moving Polygons need an API key?

No. Moving Polygons completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 14 of them are readable on this page. This is what we observed, not what the docs claim.