

LinkAja! is an Indonesian digital wallet service. The service was originally launched in 2007[1] by an Indonesian mobile operator Telkomsel as Telkomsel Cash, branded as TCASH. It is developed by PT Fintek Karya Nusantara, a company owned by various state-owned companies; including Telkomsel – itself a subsidiary of Telkom Indonesia, state-owned banks (Bank Mandiri, BRI, BNI, and BTN), Pertamina, Jiwasraya, and Danareksa.
On March 26, 2020, LinkAja partnered with Telcoin, an instant, low-cost blockchain powered remittance service. This partnership is set to explore cashless opportunities in LinkAjas area of operation.[2]
The name "Link" comes from an interbank network in Indonesia with the same former name (it has since been renamed ATM Link). The network is owned by State-owned Banks Association (HIMBARA), comprising the four banks above. The network provides cash withdrawal and inquiry services in their network.