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# Highway to Hell: 13 WebMCP tools for AI agents

![](https://www.google.com/s2/favicons?domain=dassey.github.io&sz=96)

Public services · dassey.github.io

## Highway to Hell

Map of every US fatal crash 2001-2024 from NHTSA FARS. Agents can search places and roads, check routes and read crash records.

[Open dassey.github.io](https://dassey.github.io/Highway-to-Hell/#3.83/39.2/-95.8)

## Ask an agent to

-   Count road deaths along my route from Denver to Vail
-   Show the deadliest crashes within 5 miles of my town
-   Get total fatalities on I-95 since 2015

## 13 tools

-   `capture_map_screenshot`
    
    Take a PNG of the map exactly as the user sees it, so you can look at the heat field, the plotted crashes or a coloured route yourself. Returns the picture plus the same numbers get\_map\_view reports. The map canvas…
    
    maxWidth: integer?
    
-   `check_route`
    
    Check a drive end to end: routes A to B, counts every death within a quarter mile of the road, colours the route by how deadly each stretch has been, and returns the worst stretches. This is the tool for "is this…
    
    from: string, to: string
    
-   `clear_selection`
    
    Drop the pin, the isolated road and the route check and go back to the whole country. Use it before starting a different question.
    
    recenter: boolean?
    
-   `find_place`
    
    Look up candidate US places for a search string without touching the map. Use it to disambiguate before dropping a pin or checking a route.
    
    query: string, limit: integer?
    
-   `get_crash_record`
    
    Pull the full FARS case file for one crash: date and time, conditions, every vehicle with speed and outcome, every person with age, restraint and injury. Use case ids from list\_crashes\_in\_view.
    
    state: string, year: integer, caseId: integer
    
-   `get_map_view`
    
    Read the current state of the crash map: where it is centred, the zoom, the active year range, the fatal-crash toll inside the current view, and any pin, isolated road or checked route. Call this first to know what…
    
-   `list_crashes_in_view`
    
    List the individual fatal crashes currently plotted, deadliest first, with the case id needed by get\_crash\_record. Needs the map zoomed in far enough for dots to appear; if a pin is set the list is limited to its ring.
    
    limit: integer?
    
-   `search_roads`
    
    Search the national road index by name and get each road's full 2001-2024 toll across every state it runs through. Use it to find the exact road name before isolating one.
    
    query: string, limit: integer?
    
-   `select_road`
    
    Isolate one road nationally: the map shows only its crashes, coast to coast, and reports its toll for the active year range. Takes a name from search\_roads, or a colloquial one like "hwy 6", which resolves to the…
    
    name: string
    
-   `set_basemap`
    
    Switch the basemap. "dark" is the default CARTO Dark Matter, best for reading the heat field; "street" shows road names and buildings, better for a screenshot of one neighbourhood.
    
    style: string
    
-   `set_map_view`
    
    Move the map to a place, or to explicit coordinates and zoom. Zoom past level 9 to make individual crashes appear; the whole lower 48 sits near zoom 4.
    
    place: string?, lat: number?, lng: number?, zoom: number?
    
-   `set_pin`
    
    Drop the pin on a place or coordinate and scope the map to a radius around it, so every count becomes "within N miles of here". This is the tool for "how bad is it around me / around this address".
    
    place: string?, lat: number?, lng: number?, radiusMiles: number?
    
-   `set_year_range`
    
    Limit the map to a range of crash years. FARS coverage on this map runs 2001 to 2024. Everything else — the heat field, the road toll, the route check — re-counts for the chosen years.
    
    from: integer, to: integer
    

Tools

13

Registered with

JavaScript

Scan finished

Oct 19, 2026

Tool names and descriptions are what dassey.github.io/Highway-to-Hell/#3.83/39.2/-95.8 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).