Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
The German Real-Time Mobility Context Platform for AI: traffic, trains, charging, parking, weather.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://mcp.viafrei.de/mcpRun this in your terminal
claude mcp add --transport http viafrei https://mcp.viafrei.de/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"viafrei": {
"url": "https://mcp.viafrei.de/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"viafrei": {
"type": "http",
"url": "https://mcp.viafrei.de/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://mcp.viafrei.de/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.
check_autobahn_trafficPer motorway (≤ 5), or one Bundesland's motorways with land: an Ampel, then jams, closures, roadworks in force, with place/delay/speed/map. Use when asked about a named motorway now: frei/clear (Ampel), Stau, delay, how it looks, or a LIST of closures; name every motorway (Munich
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
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,
find_parkingParking near a place, a coordinate or along one motorway: lorry parks, car parks, P+R and disabled-badge bays, with total spaces, stated amenities (WC, shower) and published free spaces. Use when asked where to park or leave the car for the train ("Parkhaus in Köln", "Rastplatz A
check_road_statusIf a motorway/B/Land road (NI, NW, HE, BW, MV, SN, TH; B also SH, BY, BE; pass Land/town as place) is open/closed/restricted now/soon; by place, jams, city/Land messages, Hamburg traffic cameras; lorry limits, Lang-Lkw (vehicle). Use when asked if a road's open/closed/gesperrt/pa
find_roadworks_aheadReturns roadworks PLANNED on one motorway, one Bundes-/Landesstraße in NI, NW, HE, BW, MV, SN or TH (BY: B only), or city streets by place, in a date window: where, impact, dates, map links. Use when a date or window is named, it says geplant, or how long a site lasts ("Baustelle
find_charging_stationReturns EV charging sites near a place or coordinate: operator, plugs, max power, price per kWh where published, and points free now where live status is published. Filters: plug, power (min/max kW), operator, free now, conditions (24/7, card, free of charge, public). Use when an
find_hydrogen_stationReturns hydrogen (H2) filling stations near a place or coordinate, nearest first, with operator, address, pumps (700 bar car, 350 bar truck/bus), opening hours where published and the age of the record. Use when someone asks where to refuel a fuel-cell car, lorry or bus ("Wassers
find_speed_camerasReturns a town's published speed-enforcement locations (fixed and red-light cameras, section control, announced mobile checks, measuring sites) by kind and street, with the § 23 Abs. 1c StVO notice. Use when someone plans a trip and asks where speed cameras are ("Blitzer Köln").
find_placeLooks up a place name and returns every match, each with its kind, population, English name and coordinate; the official key (AGS/RS) only in the structured result. Use when the person asks where somewhere is, when you need a coordinate for another tool, and above all to RECOVER
find_poiFinds a business or landmark by name or kind — company, shop, clinic, hotel, hostel — with address, category and coordinate. Use when the person names a THING rather than a town: "the adesso office in Dortmund", "the nearest Aldi", "a hotel in Weimar". The coordinate passes to an
find_addressLooks up a street address: its coordinate, and the named OpenStreetMap objects at it (company, shop, office) or that none are. Use when the person gives a STREET AND NUMBER — "Bahnhofstraße 12, Fulda" — for the point or the business there, never who lives there. The coordinate pa
describe_locationTurns a coordinate into words: the nearest address, settlement and motorway junction with their distances, and the Gemeinde, Kreis and Land the point lies in; also any low-emission zone. Use when you already HAVE a lat/lon and need to say where that is. Do NOT use to look up a pl
find_nearbyOverview of what is around a place or coordinate: fuel, EV charging, parking, nearest railway station and motorway junction, with distances; everyday places (shop, pharmacy, cash, food, hotel, workshop, police) only when named in categories. Use when asked "what is around me". Do
find_sharingReturns rentable shared bikes near a place or coordinate: bike-sharing stations with bikes and free docks now, and free-floating bikes around, with distance and data age (nextbike incl. KVB Rad, MyRadl, VAG_Rad; Donkey Republic). Use when someone asks for a rental or shared bike
get_driving_rulesReturns the German road rules a visitor needs: low-emission zones (Umweltzone) and the Feinstaubplakette, speed limits (advisory 130), winter tyres, alcohol, the Sunday lorry ban, tolls, Rettungsgasse, what must be in the car, electric cars. Use when someone drives through German
check_transit_disruptionHow punctual public transport is now in one German region: the share of trips ever >5 min late, trips skipping a stop, trips cancelled, the trend and the service alerts in force there (diversions, closed stops). Use when asked whether buses and trains run normally, or a strike, s
check_weather_warningsReturns the official DWD weather warnings in force for a place — storm, snow, ice, heavy rain, thunderstorm, heat — with Warnstufe 1–4, area, validity and the official text unaltered. At a town or coordinate it adds the DWD road-surface forecast (Straßenwetter-Prognose: dry to bl
get_train_departuresNext trains at a German railway station: platform, delay, cancellations. Use when asked when a train, S-Bahn or ICE leaves a named station, or if a train or line from it is late; later today ("heute Abend") stays here. A line with no DEPARTURE station ("ist die S1 pünktlich?"; a
get_departuresScheduled departures from any German stop — bus, tram, U-/S-Bahn, train, ferry — or the nearest stops around a place ("Abfahrten in der Nähe"). Use when asked when a bus, tram, U-/Stadtbahn or ferry goes ("welche Bahnen" at a Hbf too), or for another DAY or a time over 2 h away:
check_station_facilitiesWhether the lifts and escalators of a railway station or Köln Stadtbahn stop work now: each with place, state, reason. Another tram, U-Bahn or bus stop (named with its city: "Stuttgart Charlottenplatz") gets its step-free survey where one exists. Use when asked about step-free ac
describe_stationOne German railway station as its viafrei.de page shows it: address, step-free platforms now, lifts and escalators (out of service first), platforms, the next departures with live delays, service alerts, parking and charging. Use when asked about a station as a whole: "Was gibt e
watch_situationOpens a watch so THIS conversation is told when something changes: a road closed or restricted, a motorway jam, a stop running late, a weather warning, a charger freeing up. Use when asked to be told later: "sag mir Bescheid, wenn die A8 wieder frei ist", "tell me when a warning
stop_watchEnds a watch this conversation opened with watch_situation, so no further 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". No id at hand: pass kind ("weather") and key in the perso
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
The registry name was verified against the domain viafrei.de (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
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Read 24 tool descriptions and found no hidden instructions to the AI
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (2.5.8) reached the registry 3 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, Signoff
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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
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ViaFrei gives AI assistants real-time awareness of Germany. Trains and buses, traffic and roadworks, fuel, charging, parking and weather. One MCP. No API key. No sign-up.
Ask in plain words. Get the live answer, with its source.
[viafrei.de](https://viafrei.de/en) · Connect your assistant · For developers · For businesses · All tools · API reference · REST API (in design)
claude mcp add --transport http viafrei https://mcp.viafrei.de/mcp
Free. No account, no API key, no sign-up. One line and your assistant knows whether the A8 is jammed, whether your train, bus or tram is late, where the nearest fast charger is (and whether it is free, where the operator publishes that), which hydrogen station takes a lorry, whether the lift at your station works and whether the road ahead is forecast to freeze — from official German open data, live, with the source named in every answer. And every German motorway has a live page of its own on viafrei.de, with a map and a traffic light, and so does every railway station and every Autobahnkreuz, all of them one search away from the box in the site's header.
Beta. ViaFrei is being stabilised: sources are still being added, and
answers and coverage can change. The answers are written by an AI assistant
from our data, and AI can make mistakes, so check anything important (a
closure, a departure, a price) against the source each answer names.
**New in server 2.5.8: a whole railway station in one answer, one Bundesland's
motorways at a glance, and on viafrei.de a page for every Land, every fuel station
and every charging site.** One tool was added,
describe_station; none was renamed
or removed.
- A whole station in one answer. The new tool
describe_stationanswers
one railway station as its page on viafrei.de shows it: the address, which
platforms are step-free now, the lifts and escalators (out of service first), the
platforms with their heights, the next departures with live delays, the service
alerts, and parking and charging at the station, with a link to the station page
(example). One lift, one train's delay or a bus stop are still
check_station_facilities,get_train_departuresandget_departures.
- One Bundesland's motorways.
check_autobahn_traffictakeslandinstead of
roads: "Stau in Bayern?" is answered with the Land's counts of closures,
warnings and roadworks, its longest jams and each motorway with something in
force, as the Land's page shows it (example).
- Lift states agree with the station page.
check_station_facilitiesreads the
lift and escalator states by the same rule as the station page, so the two no
longer count a station's lifts differently.
- On viafrei.de: a page for each of the sixteen Länder and an index of them,
with the motorways now, facts and the largest towns; a page for every fuel station
and every charging site, linked from the cards and from the fuel and charging
answers, each kind in its own sitemap; maps that draw closures, roadworks and jams
along the road, mark a station's lifts and say how fresh they are, refreshing in
place with the traffic light every two minutes; a site search that also finds
Bundes- and Landesstraßen ("B 51", "L 249") and suggests without waiting on a slow
read; and recent places in the header's place bar that each open their own place,
and a station chosen from the search remembered as that station, reopening its page.
Before that, server 2.5.4 and 2.5.5: published speed-camera locations for
planning, everyday needs near a place, departures around a place, charging by terms
of use, Trier's car parks, and bus and train cards that read like a departure board.
One tool was added then,
find_speed_cameras. Server 2.5.6 and 2.5.7 added no tool.
- Published speed-enforcement locations, for planning only. The new tool
find_speed_cameras
and a card on the place pages list what four towns publish: the fixed and
red-light cameras of Düsseldorf and of Karlsruhe (with Rheinstetten), Köln's
table of measuring sites (a published measuring site, never called a fixed
camera), and Aachen's log of this year's mobile checks, for the town as a whole.
They are listed by kind and street, never by distance. Every answer, every
empty answer and every refusal opens with the § 23 Abs. 1c StVO notice: a
driver may not use such a function while driving, so the list is for before the
trip or a stop, and
watch_situationrefuses to watch for speed cameras
(example).
- Everyday needs near a place.
find_nearbyanswers, when they are named in
categories,groceries,health(pharmacy, doctor, hospital),money(cash
machine, bank, post office),
food,lodging,garage(repair, tyres, car
wash),
policeandtoilets, up to five each, from OpenStreetMap, each in its
own radius of 1 to 2 km, widened up to 5 km where fewer than three are near. The
place pages show the same places as cards. Server 2.5.4 had one
safetyneed for
police and public toilets together; 2.5.5 made them two,
needs.policeand
needs.toilets, and still answerssafetyas both.
- Departures around a place.
get_departurestakes aplaceorlat/lon
as well as a stop, and then answers with the nearest stops within 5 km and
their next departures in the coming hour, the same stops, departures and credits
as the place page's card.
- Charging by terms of use.
find_charging_stationand the charging card
filter for
conditions: open around the clock, card payment at the charger,
free of charge, open to the public. Only the Bundesnetzagentur's charging
register states these terms, so a site that states nothing is left out and
counted, never assumed to qualify.
- Trier's car parks with their free spaces: 29 car parks and lots of the
Stadtwerke Trier, 28 of them placed, in
find_parkingand on the parking card,
the first parking source for Trier (SOURCES.md).
- The bus and train card, stop by stop. Each stop is a small departure board
(the countdown over the clock, the line as a badge, the destination, the
platform, the state as a word and a symbol), its facilities folded underneath
with what is out of service, and chips over the stops to show one kind of
service. The station pages' board is drawn as a platform display, with
departures and arrivals on two tabs, and its columns keep one line each on a
phone (fixed in 2.5.5).
- One card format everywhere. The motorway pages' fuel, charging, weather
warning and road-weather cards, and the station page's departure rows, are drawn
like the place pages' cards, and the fuel card can be sorted by your grade.
- Fixed: a 22 kW AC charger (and a Type 2-only site up to 43.5 kW) is no
longer labelled DC; one departure published twice under two spellings of its
line or stop ("RE5" and "RE 5 (RRX)") is listed once, in every departure tool
and on every board.
Earlier: server 2.5.1 to 2.5.3 brought a search box in every page's header,
one page for every Autobahnkreuz and Autobahndreieck, a place box that finds
motorways and junctions, redesigned cards, and a place that may come with a
coordinate (refused with the distance and
_meta.errorReasonwhen the two are too
far apart). Server 2.5.0 fixed bugs only (a sectioned track such as Hamburg Hbf's
"7A-D" is read as that track). Server 2.4.4 to 2.4.9 brought live times for buses,
trams and the U-Bahn from DELFI's fourteen regional SIRI ET feeds and VBN's
Connect, the traffic strategies of Bayern and Lower Saxony, a traffic light and a
street map for every place, station pages for every railway station, and police and
Land traffic messages translated on the site. The 2.4.0 to 2.4.3 releases brought
the five-question
entryon every road item, charging by operator and power band,
truck-parking occupancy behind the user's acceptance, and the
station and exit pages; the CHANGELOG
has the whole list. Every source is listed, with what it feeds and what we hold
back, in SOURCES.md.
You don't need to know any tool names. Ask the way you'd ask a friend who happens to have every German traffic feed open. German or English; the answer comes back in the language you asked in.
| when you're… | ask |
|---|---|
| 🌅 about to commute | *Wann fährt die nächste Bahn ab Köln Neumarkt?* · *What leaves from the stops near Köln-Ehrenfeld?* · *Does an ICE leave Tübingen Hbf in the next hour?* · *Fahren Busse und Bahnen in Bayern gerade pünktlich?* · *When does the next train leave Hamburg Hbf?* · *Which U-Bahn and trams leave Berlin Alexanderplatz in the next minutes?* · *Wann fährt die nächste Stadtbahn ab Hannover Kröpcke?* · *Tell me about Leipzig Hbf* |
| 🚗 about to drive | *Is the A7 clear right now?* · *Stau in Bayern?* · *How are the motorways in Hessen right now?* · *Gibt es Stau auf der A8?* · *Are there roadworks on the A7 next week?* · *Is the A1 closed anywhere?* · *Welche Vollsperrungen sind auf der A7 in den nächsten sieben Tagen geplant?* · *Welche Baustellen gibt es in München?* · *How is the traffic on the A3 around Köln?* · *Ist die Fehmarnsundbrücke wegen Wind gesperrt?* · *Which detours are signed near Hamburg Hbf?* |
| 🗺️ planning a trip | *Ich plane eine Fahrt nach Düsseldorf: Wo stehen dort feste Blitzer?* · *Which speed-camera locations does Karlsruhe publish?* — for planning only: the answer opens with the § 23 Abs. 1c StVO notice, and a driver may not use it while driving |
| 🚚 driving a lorry | *Darf der Lang-Lkw auf die A7?* · *Which height limits are there for lorries in Bremen?* · *Gibt es Lkw-Durchfahrtsverbote bei Bielefeld?* · *Wann ist der nächste Lkw-Fahrverbotstag?* · *Gilt am 31. Oktober in Niedersachsen Lkw-Fahrverbot?* · *Welche Durchfahrtshöhen gibt es am Kölner Dom?* · *Where are the lorry bans in Dresden?* |
| 🚧 stuck in traffic | *How much time is the jam on the A3 between Frankfurt and Würzburg costing right now?* · *Is traffic backed up on the Cologne motorway ring — A1, A3 or A4?* · *Ist der Elbtunnel auf der
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