How it works
How compatible credentials work
Most access-control credentials are read-only identifiers: the card simply tells the reader a number, and the panel decides whether that number has access. Encode that number in the exact format the reader expects and you have a working credential — at a fraction of what the original manufacturer charges. The hard part isn't making the card; it's knowing the format. That expertise, across 369 formats including the specialist ones few suppliers stock, is our specialty.
Identify the format
Read the part number printed on your card or fob, note the brand on the reader by the door, or send a sample. The first fork is frequency — 125 kHz LF or 13.56 MHz HF — and from there the OEM and exact bit format. Our identify-your-card guide walks through it.
Identify your card →We confirm compatibility
You tell us the format and quantity; we verify the encoding before producing anything. For open formats we confirm the encoding directly; for secured smart credentials we confirm the compatible-blank-and-re-enrol path. You always know which applies before you order.
Compatible vs genuine →We encode the credential
We write the exact data structure — frequency, bit format, facility code and card number — onto the correct base chip (T5577, EM4305, MIFARE, DESFire or iCLASS). The result reads identically to the original on your existing equipment.
How encoding works →Shipped worldwide
Your credentials ship anywhere, at a fraction of OEM pricing. We keep your format on file so reorders — a single spare or a facility-wide batch — are fast.
Request a quote →Open vs secured
The right product for every security tier
Encoded directly
Open 125 kHz formats (EM, HID Prox, Indala, AWID) and legacy iCLASS are encoded directly onto a programmable blank that reads identically to your original.
Compatible blank + re-enrol
Secured smart credentials — DESFire (AES), Seos, iCLASS SE and Elite — are secured by design. We supply compatible blanks on the matching chip, including genuine NXP DESFire, for your own system to enrol — so the keys stay in your hands.
Request a quote
Can't find your format? Email the specialists.
Send the part number printed on your card or a photo of the reader. We confirm compatibility before you order — and we cover the specialist formats nobody else lists.