VivoKey Spark 2 [Cryptobionic Implant]

  • 13.56MHz ISO14443A & NFC Type 4 chip
  • 2.1x14mm cylindrical sterile biocompatible package
  • AES128 bit strong in vivo cryptography
  • Plug-and-play cryptobionic implant
  • 13.56MHz X Field Detector Included!

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More Details

WARNING This kit definitely contains dangerous things. While the VivoKey Spark transponder is currently in FDA approval process, has undergone several quality checks during manufacture, and has been put through a battery of tests with various private labs, it has not yet been certified by any government regulatory agency for implantation or use inside the human body. Use of this device is strictly at your own risk.

The VivoKey Spark 2 is not the implant that was featured in recent news coverage where a VivoKey customer used their implant to open and drive their Tesla. That product is called VivoKey Apex, and is currently available as a preview release product at All support for VivoKey Apex Flex can be found exclusively on our

Next Generation Cryptobionics

The VivoKey Spark is a product designed by VivoKey Technologies, makers of the only cryptobionic implants capable of performing strong cryptographic functions in vivo. The Spark 2 is ISO4443A and NFC Type 4 compliant, readable by all NFC reader devices including all NFC capable smartphones and USB readers that are capable of reading ISO14443A chips.

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Spark Actions

The VivoKey Spark 2 works with the Spark Actions smartphone app to create and different behaviors or actions that launch when someone scans your Spark with their NFC enabled smartphone. You can create actions that open a website, initiate a phone call, prepare a pre-filled SMS message, or create a new email with pre-populated recipients, subject line, and message body. More URI based actions will be supported in future releases.

Kit Contents

  • 1 sterile injector assembly, pre-loaded with a VivoKey Spark 2 tag
  • 2 single use ChloraPrep antiseptic wipes
  • 1 sterile gauze pad for post-injection wound care
  • 1 sterile expandable-fabric adhesive bandage
  • 1 pair of non-sterile, non-latex procedure gloves

The Spark kit contains the Spark pre-loaded inside the injector assembly, and all the sterile procedure materials required to perform installation. The Spark is encased in biologically safe 2x14mm cylindrical bioglass. The bioglass cylinder is laser sealed and the finished Spark is tested for function before loading into the injector assembly, and the whole injector assembly with the Spark inside is EO gas sterilized.

Important Things To Know

Spark 2 Specifications
  • 13.56MHz ISO14443A & NFC Type 4 compliant RFID chipset
  • AES128 encryption function with 2 byte payload salt
  • Encased in 2.1mm by 14mm bioglass with non-toxic epoxy
  • Pre-tested and pre-loaded in sterile injection assembly

AES Encryption
Spark’s core cryptography function is compliant to FIPS PUB 197 (FIPS 197) Advanced Encryption Standard (AES). The CMAC is calculated according to NIST Special Publication 800-38B, and uses only 8 even bytes from last encrypted block.

How/where are x-series chips installed? Aftercare? What to expect?
Our x-series transponders are typically installed into the webbing between the metacarpal bones of the index finger and thumb, resting parallel to the index metacarpal. The reason they are installed in the hand has to do with the extremely short read range of x-series chips and the typical use case being some form of access control where the tag must be presented to a fixed reader of some kind. The suggested placement within the hand was chosen due to the lack of major nerve bundles or blood vessels running through that area.

Achieving a safe installation definitely requires a steady hand and experience performing aseptic procedures. Dangerous Things prefers our customers locate one of our professional body piercing or body modification partners to complete the installation of this product. If no partners are available in your area, you should be able to follow this guide to finding a professional in your area who is willing to assist you. For aftercare information and what to expect, please read our X-Series FAQ page.

Can I get an MRI? What about airport security? Playing sports? etc.
You have questions! That’s understandable. The short answer is; it’s all good. If you’re looking for more specific answers, we have an extensive FAQ page that deals with many of the most commonly asked questions regarding installation small cylindrical transponders like the Spark.
Practical read range/performance expectation
Magnetic fieldPassive RFID and NFC tags are magnetically coupled devices that power themselves and communicate data over a shared magnetic field the reader generates. This means their effective read range and performance depends entirely on how well the antenna coils of both the tag and reader couple with each other. This typically means the shape, size, and orientation of both antennas must be complimentary.

Unfortunately, most reader devices, including mobile phones, typically have antennas designed with thin PCB traces made into blocky rectangular shapes that lay along a flat plane. These antenna designs are great for coupling with and reading large flat label tags, credit card style tags, and access cards which also share this antenna shape, but they have a hard time coupling to the very small cylindrical antenna coil inside our x-series tags. Most mobile phones and reader devices have a “sweet spot” or two that must be located and used each time to get consistent results. You should not expect your USB reader or mobile device to achieve the same read range with the Spark that you normally get with a label tag or card style tag. Here are some example videos detailing typical read performance and how to find that “sweet spot”.

The X Field Detector can help!
The XFD is a signal diagnostic device that mimics the x-series antenna coil winding and shows you the best possible location and rotation/orientation for holding your x-series transponder up to any reader. That’s why we include one in every kit! This video explains how it works.

Tag testing process, return policy, lifetime warranty
Testing Process
All implantable transponders come pre-loaded inside injector systems with steel needles and cannot be read while inside the needle. Because of this, we perform a full test on every transponder before it is loaded into the injector assembly and sterilized. We have also conducted several tests, cataloging those tests here.

Return Policy
We offer a 30-day money back guarantee! Read all about it on our return policy page.

Lifetime Warranty
If you do purchase one of our products and experience a failure, we offer a full lifetime warranty on all of our products. You will need to return the product for testing and analysis, and if it is malfunctioning, we will ship you a replacement free of charge. Read all about it on our warranty policy page.