Moving Polygons

Moving Polygons makes animated maps of how borders, territories and other regions change over time: empires, wars, nations, provinces, epidemics, sea ice.

With this connector your AI can turn an idea such as "the Thirty Years' War" or "how Poland's borders moved" into a map in your account. What your AI can do:

MCP connector

Server URL: https://www.movingpolygons.com/mcp
Login: API key
Protocol: MCP 2025-11-25
Instructions: Moving Polygons (movingpolygons.com) turns timed polygons into animated maps: borders that morph between keyframes, plus point markers. Most tools act on the user's own account; the first call to one of them asks the user to sign in. , and work without signing in.
Workflow for a new map:
Call once and follow it exactly (geometry is a list of closed rings, not GeoJSON; labels ≤ 50 chars; colours #RRGGBB).
Small maps (under ~1 MB of JSON): pass the JSON object to .
Bigger maps, or a map file you built in a sandbox or on disk: call , then run the returned curl command. Never paste a large file into a single tool call. If curl cannot reach this site (the claude.ai sandbox blocks it unless the user allowlists www.movingpolygons.com), send the minified JSON in parts of about 30,000 characters: , then for each piece in order, then .
Give the user the editor or preview link. New maps are private drafts.
To find maps other people published (any topic or period), use and .
Never call unless the user asked to publish: it makes the map public. overwrites a map (a backup is kept); confirm with the user first when the map is published.

Tools

Reads data7

Changes data5

Deletes or can't be undone2

Skills

None in the store listings or on the server

MCP connector

Server URL

https://www.movingpolygons.com/mcp

API key

Protocol

MCP 2025-11-25

Instructions

Moving Polygons (movingpolygons.com) turns timed polygons into animated maps: borders that morph between keyframes, plus point markers. Most tools act on the user's own account; the first call to one of them asks the user to sign in. , and work without signing in.

Workflow for a new map:

Call once and follow it exactly (geometry is a list of closed rings, not GeoJSON; labels ≤ 50 chars; colours #RRGGBB).

Small maps (under ~1 MB of JSON): pass the JSON object to .

Bigger maps, or a map file you built in a sandbox or on disk: call , then run the returned curl command. Never paste a large file into a single tool call. If curl cannot reach this site (the claude.ai sandbox blocks it unless the user allowlists www.movingpolygons.com), send the minified JSON in parts of about 30,000 characters: , then for each piece in order, then .

Give the user the editor or preview link. New maps are private drafts.

To find maps other people published (any topic or period), use and .

Never call unless the user asked to publish: it makes the map public. overwrites a map (a backup is kept); confirm with the user first when the map is published.