viafrei

Live German traffic, rail, parking, charging, fuel, addresses and weather – inside your AI assistant.

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What it can do

  • Check Autobahn Traffic: Returns jams, slow traffic, closures and roadworks in force this minute on up to 5 German motorways, with delay and speed. Use when the question is about the road now: Stau, a
  • Find Cheapest Fuel: Returns the cheapest stations for one fuel grade near a place or coordinate: price per litre, brand, address, distance, open state. Use when the user asks where to fill up or what
  • Find Fuel Station: Finds filling stations around a place or coordinate under any combination of filters — grade, brand, name, open now, open at a time you name, open 24 h — sorted by distance, price o

What data it sees

Do you need an account

No: the server works without sign-in

Live German traffic, rail, parking, charging, fuel, addresses and weather – inside your AI assistant. Ask in plain German or plain English and the answer comes back from official open data, with the attribution the licence requires.

How to connect

How to connect viafrei to Claude

The server address to paste into Claude settings:

https://viafrei--mavrovde.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect viafrei to ChatGPT

The server address to paste into ChatGPT settings:

https://viafrei--mavrovde.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect viafrei to Cursor

The server address to paste into Cursor settings:

https://viafrei--mavrovde.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (20)

Raw names from tools/list. Only developers need these.

check_autobahn_trafficReturns jams, slow traffic, closures and roadworks in force this minute on up to 5 German motorways, with delay and speed. Use when the question is about the road now: Stau, a delay, how it looks, or which closures are reported; name every motorway (Munich→Berlin: A9). Do NOT use for whether a road is open or passable — check_road_status at any clock — nor a closure with no time word or a later one (tonight, the weekend); for Baustellen dated or geplant — find_roadworks_ahead; nor city streets, fuel (find_cheapest_fuel) or trains (get_train_departures). ~5 min old. Show the attribution line.
find_cheapest_fuelReturns the cheapest stations for one fuel grade near a place or coordinate: price per litre, brand, address, distance, open state. Use when the user asks where to fill up or what fuel costs. Do NOT use for charging an electric car (call find_charging_station), price history, or traffic (call check_autobahn_traffic). Radius ≤ 25 km, at most 10 stations. For a brand, a name, open now or at a named time, or nearest-first, call find_fuel_station. Each line names the age of its price and opening-hours claim. Prices are consumer information only; the attribution line and MTS-K note must be shown.
find_fuel_stationFinds filling stations around a place or coordinate under any combination of filters — grade, brand, name, open now, open at a time you name, open 24 h — sorted by distance, price or name. Use when the question is WHICH station: the closest diesel to a stop, an ARAL open tonight, what one forecourt sells. Do NOT use for the plain "where is fuel cheapest" question (call find_cheapest_fuel) or for charging an electric car (call find_charging_station). Every result carries the attribution and the MTS-K note, and says how old each price and opening-hours claim is.
find_parkingReturns parking near a place, a coordinate or along one motorway: rest areas with lorry spaces, car parks and park-and-ride sites, with total spaces and, where published, how many are free now and that reading's age. Use when someone asks where to park, stop, rest or leave the car for the train ("Parkhaus in Köln", "Rastplatz A3", "P+R"). Do NOT use for fuel — call find_cheapest_fuel — or for charging an electric car — call find_charging_station. Radius ≤ 25 km, ≤ 10 sites. No "free now" means the operator publishes no count, not that it is full. Every answer carries each source's attribution.
check_road_statusReturns whether one German motorway or federal road is open, closed or restricted, now and in the coming days. Use when the question is whether the road is open or passable — "ist die A8 offen", "ist die A8 in diesem Moment gesperrt", "komme ich durch" — at any clock, plus closures tonight, at the weekend or with no time word. Do NOT use for jams and delays, a whole multi-motorway route, or what is reported on a motorway this minute — call check_autobahn_traffic; for roadworks over a date window — find_roadworks_ahead. One road per call, ≤ 14 days, ≤ 11 entries. Show the attribution line.
find_roadworks_aheadReturns the roadworks PLANNED on one German motorway inside a date window: the section and direction as published, what is restricted, and the start and end. Use when a date or window is named, the question says geplant, or someone asks how long a site lasts ("Baustellen auf der A7 in den Sommerferien?"). ONE road per call. Do NOT use when more than one motorway is named, for the situation this minute, or for Baustellen with neither date nor geplant — all three are check_autobahn_traffic; whether a road is open — call check_road_status. ≤ 90 days, max 20 sites. Show the attribution line.
find_charging_stationReturns EV charging sites near a place or coordinate with operator, connector types, maximum power, price per kWh where published, and how many points are free right now where the operator publishes live status. Use when an EV driver asks where to charge ("Wo kann ich laden?", "CCS 150 kW near Leipzig", "ist gerade eine Säule frei?"). Do NOT use for petrol or diesel — call find_cheapest_fuel; for E-Kennzeichen or Ladekarte rules — call get_driving_rules. Radius ≤ 25 km, ≤ 10 sites; availability is missing for most operators and is then unknown, never free. Show the attribution line.
find_placeLooks up a place name and returns every place that matches, each with its kind, official key (AGS/RS), population, English name and coordinate. Use when the person asks where somewhere is, when you need a coordinate for another tool, and above all to RECOVER after a tool reported a name as ambiguous — this is where you find out which Neustadt is which. Pass `near` to rank and separate same-named places by distance. Do NOT use to find a company, shop or landmark: call find_poi. At most 10 results, radius <= 200 km. Every result carries an attribution line that must be shown to the user.
find_poiFinds a named business or landmark — company, shop, clinic, hotel — and returns its address, category and coordinate. Use when the person names a THING rather than a town: "the adesso office in Dortmund", "the nearest Aldi". The coordinate it returns passes to any other tool as lat/lon. Do NOT use for a town, district or station (every tool's `place` resolves those), nor for fuel, charging or parking, which have their own tools. Give "in" (a town) when you can: far faster than searching nationwide. At most 10 results, radius <= 50 km. OpenStreetMap under ODbL 1.0; show the attribution line.
find_addressLooks up a street address and returns its coordinate, plus what OpenStreetMap holds under it. Use when the person gives a STREET AND NUMBER — "Hauptstraße 12, Fulda" — for the point, or to see what is mapped there. The coordinate passes to any other tool as lat/lon. Do NOT use for a town/district/station name alone (find_place) or a company/shop/landmark by name (find_poi) — needs a street and a number. At most 5 results; more than one means the door is mapped twice, not that the address is ambiguous. OpenStreetMap ODbL 1.0; show the attribution line.
describe_locationTurns a coordinate into words: the nearest address, settlement, Kreis, administrative area and motorway junction, each with its own distance. Use when you already HAVE a lat/lon and need to say where that is. Do NOT use to look up a place or address BY NAME — that is find_place, find_poi or find_address; this only goes coordinate to words. The gazetteer facts are the NEAREST point, not a boundary lookup — near a border it can differ, and the admin point can be a Regierungsbezirk, not a Land. OpenStreetMap ODbL 1.0 for the address; show the attribution line.
find_nearbyOverview of what is around a place or coordinate: nearby fuel stations, EV charging, parking, the nearest railway station and motorway junction, each with its distance. Use when someone asks "what is around me" or "what is near <place>" — a broad look, not one category in depth. Do NOT use for a fuel grade's price (find_cheapest_fuel), charger/connector status (find_charging_station), parking kind/occupancy (find_parking), a NAME lookup (find_place/find_poi/find_address), or a coordinate's address (describe_location). Radius ≤ 15 km, up to 3 per category. Shows each source's attribution.
get_driving_rulesReturns the German road rules a visitor needs: low-emission zones (Umweltzone) and which Feinstaubplakette a city requires, speed limits (advisory 130), winter tyres, alcohol, the Sunday lorry ban, tolls (no car toll), Rettungsgasse, what must be in the car, and electric cars (E-Kennzeichen, ad-hoc payment, plugs). Use when someone drives through Germany or asks whether they may enter a city. Do NOT use for live traffic or closures: check_autobahn_traffic; to FIND a charger: find_charging_station. Optional city narrows to its zone. Sourced and dated; show the attribution. Not legal advice.
check_transit_disruptionReturns how punctual public transport is right now in one German region: the share of distinct trips at least once more than 5 minutes late, trips with a cancelled stop, the trend against the previous window, and how many trips that rests on. Use when the user asks whether buses and trains are running normally, or whether a strike or storm is disrupting local transport. Do NOT use for one line, trip or station — per-line realtime is unavailable; the region's figures are the answer. Region-wide aggregates only; window ≤ 120 min. CC BY-SA (share-alike): show the attribution line to the user.
check_weather_warningsReturns the official DWD weather warnings in force for a place or coordinate — storm, snow, ice, heavy rain, thunderstorm, heat — with the DWD's own Warnstufe 1–4, the area, the local validity window and the official text unaltered. Use when someone asks about weather for a trip, whether it is safe to drive somewhere, or about storm, snow or ice warnings. Do NOT use for a plain forecast (not offered: warnings only) or for closures and jams (call check_autobahn_traffic). Says so when the data is not current instead of reporting an all-clear. Show the result's attribution line to the user.
get_train_departuresNext departures from a German railway station, with platform, delay and cancellations. Use when asked when a train, S-Bahn or ICE leaves a named station, or whether THAT departure is late; vague later-today wording ("heute Abend") stays here. Whether ONE line is punctual ("ist die S1 pünktlich?") is NOT this tool, though it is rail and about delay — call check_transit_disruption. Do NOT use for buses, trams, a non-railway stop, another day or a time over 2 h away — get_departures. No destination filter: read the board. Max 15 departures, window 120 min. Results carry their attribution line.
get_departuresScheduled departures from any German public-transport stop — bus, tram, U-Bahn, S-Bahn, train, ferry — with line, destination, platform. Use when someone asks when a bus, tram, U-Bahn or ferry goes, or for another DAY or a clock time over 2 h away: "Wann fährt der nächste Bus ab Fulda Bahnhof?" Do NOT use for a railway station's trains now or later today — get_train_departures. Planned times only: for "is my bus late?" give the plan and say so; regional punctuality check_transit_disruption. No destination filter: read the board. Window 48 h, 15 per call. Results carry their attribution line.
check_station_facilitiesReport whether a German railway station's lifts and escalators are working right now: each one, where it is, its state (in service / out of service / unknown) and the operator's own explanation. Use when someone asks about step-free access or a broken lift — "Funktioniert der Aufzug am Kölner Hauptbahnhof?", "is the lift at Hamburg Hbf working?", "Rolltreppe kaputt?", travelling with a wheelchair, a pram or heavy luggage. Do NOT use for train times, platforms or delays — call get_train_departures. At most 50 facilities, out-of-service ones first. Results carry their attribution line.
watch_situationOpens a watch so THIS conversation is told when something changes: a road reopening, a stop running late, a weather warning starting, a charge point turning free. Use when the person asks to be told later: "sag mir Bescheid, wenn die A8 wieder frei ist", "tell me when a charger is free". Do NOT use to look something up now (call check_road_status, check_autobahn_traffic or find_charging_station), and do NOT use when an e-mail, SMS or any alert outside this chat was asked for — we cannot send one; say so. Session-scoped. At most 10 watches, 24 h each. Results carry their attribution line.
stop_watchEnds a watch this conversation opened with watch_situation, so no further change notifications arrive for it. Use when the person no longer needs to be told — "du musst mir nichts mehr zur A8 sagen", "stop watching that charger". When they name the subject and not an id, take the id from viafrei://watches. Do NOT use to look a situation up (call check_road_status), to list what is running (read viafrei://watches), or to cancel anything outside this chat — there is nothing subscribed elsewhere. A watch id from another session is not found, never stopped. Results carry their attribution line.