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# Karta: 8 WebMCP tools for AI agents

![](https://www.google.com/s2/favicons?domain=karta.timothybrits.co.za&sz=96)

Public services · karta.timothybrits.co.za

## Karta

Map of how apartheid-era planning shapes Gauteng commutes. Agents can toggle layers, find places and measure distances.

[Open karta.timothybrits.co.za](https://karta.timothybrits.co.za/?basemap=topo)

## Ask an agent to

-   Fly the map to Soweto
-   Measure the distance from Soweto to Sandton
-   List the map layers, turn one on and read the map story

## 8 tools

-   `list-map-layers`
    
    List this map's layers, each with its id, label, and whether it's currently visible.
    
-   `measure-area`
    
    Measure the area enclosed by three or more named locations, and show it on the map's measuring tool.
    
    locations: array
    
-   `measure-distance`
    
    Measure the straight-line distance across two or more named locations, and show it on the map's measuring tool.
    
    locations: array
    
-   `read-map-story`
    
    Read this map's background story explaining why it exists, and open the Story panel.
    
-   `search-map-location`
    
    Search for a place by name and fly the map to the best match, e.g. a town, suburb or station.
    
    query: string
    
-   `set-app-theme`
    
    Switch the app's colour theme. "system" follows the OS preference.
    
    theme: string
    
-   `set-map-basemap`
    
    Switch the map's basemap style.
    
    basemap: string
    
-   `toggle-map-layer`
    
    Show or hide a map layer by id. Call list-map-layers first to find valid ids.
    
    layerId: string
    

Tools

8

Registered with

JavaScript

Scan finished

Oct 19, 2026

Tool names and descriptions are what karta.timothybrits.co.za/?basemap=topo registered when we loaded it in Chrome 154 on Browser Use Cloud. The summary and the “ask an agent” lines are AI-written from them. To call the tools yourself, see [Chrome’s WebMCP docs](https://developer.chrome.com/docs/ai/webmcp). [How we found it](https://browser-use.com/webmcp#method).