Check your charging bill

A bill compliant with German calibration law carries a signed record – the meter readings, signed by the metering capsule. Upload the bill and the record is located and checked: does the signature match the charge point, and is the amount billed right? This site already has the public key for it – it is in the charging point register.

Nothing is stored here – but an uploaded PDF file is sent to Anthropic. The record contains your identifier – an RFID number or contract number – and the bill usually your name and address as well. On this server both are checked in memory and gone again with this response: no database, no log, no address bar. The server also sends the PDF file to Anthropic (USA); the language model Claude reads the amount, tariff, time-based items and energy quantities from it – as a suggestion you can see and change. According to Anthropic, inputs and outputs are deleted within 30 days. If you do not want that, paste the record below by hand: that route does not go to Anthropic. More in the privacy policy.

Upload your bill as a PDF

The file you received from your provider, unchanged. The record is located inside it, even when the bill lists several charging sessions.

📷 Check a QR code with your camera

Photograph the QR code on the charger display, on the receipt, or the sticker on the charger. If it holds a charging record we check its signature; if it is a web address we check whether it belongs to the operator. The image stays on your device.

Take a photo

or paste it by hand

Signed record Starts with OCMF|. It is on the bill, in the charging portal or in the provider's app. Line breaks from the PDF do not matter.

EVSE ID of the charge point Printed on the station and usually on the bill.

…or charging station ID The number from the register.

Charge point Number 1 to 6, if known.

Do the maths: tariff and amount billed (optional)

The signature check establishes the quantity. Whether the amount fits requires your tariff. The duration for a blocking fee comes from the signed record – it is signed along with everything else and therefore verifiable.

Energy price (€/kWh) From your tariff, for this operator.

Session fee (€) Per charging session, if your tariff has one.

Amount billed (€) What the bill says.

Blocking fee (€/min) The time-based fee in your tariff.

Grace period (min) The fee starts only after this.

Cap per session (€) Maximum amount, if your tariff names one.

Enter the key yourself (if the register has none)

As PEM, hex or Base64 – however the operator gives it. If there is one in the register, the two are additionally compared.

Not checked a bill? Tell us with one click what is stopping you.

One click, nothing more: no address, no account. All that is counted is which reason was given how often – that decides what changes on this page.

What the check says – and what it does not

It establishes the quantity, not the price. A valid signature means: the meter counted this many kilowatt hours. Whether the unit price or an idle fee was applied correctly is another matter entirely.
It establishes the charge point only as far as the key is unique. Keys appear more than once in the register. Where that is the case, the charging station page says so – a valid signature then demonstrably comes from a metering capsule, but not necessarily from this one.
It does not replace the transparency software. For a dispute with the operator or the calibration authority, the S.A.F.E. software is the authority; it knows every approved format. This page is the quick route to the question: is anything wrong here at all?
An invalid signature does not automatically mean fraud. The most common reason is a copying error, the second most common a wrongly filed key in the register.
The PDF is read, not recognised. If the record is in the bill as text, it will be found. If the bill is a scan, or the record is only in the QR code, this page finds nothing and says so – it does not guess.