A microchip was first implanted into a human back in 1998, but it is only during the past decade that the technology has been available commercially. And when it comes to implantable payment chips, British-Polish firm, Walletmor, says that last year it became the first company to offer them for sale. Walletmor’s chip is comprised of a tiny microchip and an antenna encased in a biopolymer – a naturally sourced material, similar to plastic.