SGDIO

Heleos Singapore Dollar

SGDIO is the Heleos tokenized deposit denomination representing the Singapore Dollar.

Specifications

Property	Value
Display Denomination	SGDIO
On-Chain Denomination	`usgdio`
Decimal Precision	6
Module	`x/stablecoin`
Authority Model	Stablecoin authority address (mint/burn restricted)
Sovereign Reference	Singapore Dollar (SGD)
Current Staking Model	Consensus staking restricted to uos
Current Fee Model	Exempt from ecosystem transaction fee

Supported Operations

MsgMint - Issue new SGDIO to a specified address (authority only)
MsgBurn - Redeem SGDIO from circulation (authority only)
MsgSend - Transfer SGDIO between Heleos addresses (any holder)
QueryBalance - Query SGDIO balance for a given address
QueryTotalSupply - Query total SGDIO in circulation
QueryDenomMetadata - Query SGDIO metadata

Query Endpoints

CLI: heleosd query bank balances [address] --denom usgdio

CLI: heleosd query bank total-supply --denom usgdio

REST: GET /cosmos/bank/v1beta1/balances/{address}/by_denom?denom=usgdio

REST: GET /cosmos/bank/v1beta1/supply/by_denom?denom=usgdio

gRPC: cosmos.bank.v1beta1.Query/Balance with denom usgdio

gRPC: cosmos.bank.v1beta1.Query/SupplyOf with denom usgdio

Integration Path

SGDIO is available for integration with Singaporean banking institutions through the StableNow platform. Singapore partner banks execute a Letter of Intent with Heleos, complete the StableNow integration under MAS-compliant operating procedures (including participation frameworks established through initiatives such as Project Guardian), and begin tokenizing customer Singapore dollar deposits as SGDIO under their operational control.

Back to Denominations

Technical Documentation - Version 1.0 | Effective Date: April 3, 2026