SkyV2X

The stack

A production V2X stack.
Without enterprise licensing.

A complete V2X software stack: the full ETSI and 3GPP C-ITS stack covering awareness, hazard, signalised intersection, security and edge, with facilities and trust of our own, independent of the radio underneath. The capability the enterprise automotive stacks reserve for OEMs, built for the roadside and priced for the cities that run it.

The gap

The market grew up
around the car.

The connected-vehicle software market grew up around car makers. That leaves the people who own the actual infrastructure (cities, road operators, signal authorities) buying the leftovers.

Priced in the dark.

No public pricing anywhere in the category. Every figure is a private negotiation sized for a car maker’s budget, far above what a city can carry.

Aimed at the vehicle.

Built for the ECU and the OEM programme. The intersection, the roadside, the operator — an afterthought.

Married to a supplier.

The stack arrives welded to one vendor’s hardware or chipset. Change the box and you change the software.

The stack

One stack,
ten facilities.

Every ETSI C-ITS facility on one shared message and codec layer, over a Local Dynamic Map and a data bus, with trust applied across the whole stack. Nothing bolted on later, nothing left to a second supplier.

Awareness

Who is there, what they see, and the vulnerable ones among them.

CAM · CPM · VAM

Hazard & events

What just happened, and what the roadside signs say.

DENM · IVIM

Signalised intersection

Phase and timing, and the map that makes them mean something.

SPATEM · MAPEM

Priority & request

Ask the junction for green; hear what it grants.

SREM · SSEM

Points of interest

Parking, charging and services, on the same channel.

POIM

Underneath Local Dynamic Map DDS data bus GeoNetworking + BTP Congestion control PKI & certificates MEC edge
Radios ITS-G5 C-V2X PC5 / NR-V2X 5G — swap the access layer, keep the stack

On the road

What the messages
actually do.

The stack is the plumbing; this is what it delivers at the junction. Every one is a standard C-ITS service, and every one runs on the same stack.

Emergency vehicle approaching DENM
Forward collision warning CAM
Intersection movement assist CAM · CPM
Vulnerable road user warning VAM
Signal phase & red-light warning SPATEM
Green-light optimal speed SPATEM · MAPEM
Road works & hazard ahead DENM · IVIM
In-vehicle speed limits & signage IVIM
Wrong-way & stationary vehicle DENM
Transit & emergency priority SREM · SSEM
Weather & road-surface alerts DENM
Parking, charging & services POIM

By the letter

The standards.
By number.

Every standard this stack implements, by number, across all layers. The conformance audit is published in the open for anyone to check.

See a testbed conformance audit
ETSICENC2C-CCC-RoadsIEEEISO3GPP5GAA

Facilities

CAM EN 302 637-2 · TS 103 900
DENM EN 302 637-3 · TS 103 831
CPM TS 103 324
VAM TS 103 300-3
SPATEM · MAPEM · IVIM · SREM · SSEM TS 103 301
POIM TS 103 916
Common Data Dictionary TS 102 894-2

Networking & transport

GeoNetworking EN 302 636-4-1
BTP EN 302 636-5-1
Congestion control (DCC) TS 102 687
IPv6 over GeoNetworking EN 302 636-6-1

Security & trust

Message security TS 103 097 · IEEE 1609.2-2022
PKI / trust management TS 102 941
Security architecture TS 102 940
Misbehaviour reporting TS 103 759

Access & map

ITS-G5 EN 302 663
C-V2X PC5 / NR-V2X EN 303 798 · 3GPP Rel-14 → Rel-17
Local Dynamic Map EN 302 895

Why it's different

The parts nobody else
ships together.

Hardware-neutral.

Any certified platform, any radio. The stack itself is the product, sold on its own and tied to no hardware.

In the signal head.

The radio lives inside the signal head itself. Fewer parts, less street furniture, cleaner line of sight.

Conformance in the open.

ETSI and 3GPP by the letter, with a conformance audit published in the open for anyone to read.

Multi-vendor by design.

It arms the infrastructure you already own, whoever built it.

Without enterprise licensing.

Production-grade, operated on real roads, priced for a public budget.

Deployed and operated.

Not an SDK dropped over the wall. We stand the stack up on the street and stay through the first operational period.

See it running

Watch the stack
drive a live twin.

Mirall is a public digital twin where the stack runs behind every vehicle and roadside station on the map: the same messages, live, over a real street network. Most vendors describe their stack. This one you can watch work.

Open the live twin
Mirall live V2X digital twin of Barcelona: roadside units and CAM, CPM and V2I message arcs travelling between vehicles over a photorealistic 3D map. mirall.skyv2x.com Live

Proof

Running on real
infrastructure.

Conformance, published. The edge services publish their own ETSI audit against the standard test suites, live, for anyone to read.

Live services. The stack, the decoder, the trust layer and the twin all run as public services you can reach today.

On the street this year. A roadside pilot on live European infrastructure takes the stack from lab to field in 2026.

Open the ecosystem

FAQ

Questions,
answered.

What is a V2X software stack?
The layered software that lets vehicles, roadside units and infrastructure exchange standard V2X messages: the facilities that build the messages, the networking and transport that move them, the security that signs and verifies them, and the access layer that reaches the radio. SkyV2X implements the European C-ITS stack per ETSI.
What standards does a V2X stack implement?
In Europe, the ETSI Cooperative-ITS set: CAM (TS 103 900), DENM (TS 103 831), CPM (TS 103 324), VAM (TS 103 300-3), the infrastructure messages (TS 103 301), GeoNetworking and BTP (EN 302 636 and TS 103 836), message security (TS 103 097) and the PKI (TS 102 941).
Is a V2X stack tied to a specific radio?
It should not be. The SkyV2X stack is radio-independent: the facilities, security and networking layers stay identical whether the access layer is ITS-G5 or C-V2X, so swapping the radio leaves everything above it untouched.
What is the difference between a V2X stack and a V2X radio?
The radio (ITS-G5 or C-V2X) carries the bits over the 5.9 GHz band; the stack is the software above it that turns those bits into standard, signed, meaningful messages. The radio varies by country and corridor; the stack stays the same.

Bring the stack to your roads.

Tell us what runs at your intersections today. We'll tell you what it takes to have them talking to vehicles.