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Platform

One platform for the full stablecoin lifecycle

Full lifecycle infrastructure for regulated JPY stablecoins — issuance, custody, transfer and DeFi connectivity. Built for Japanese financial institutions, secured by HSM.

01Issuance02Custody03Transfer & Payment04Connect (DeFi)

01 Core modules

Four core modules. One integrated platform.

Issuance, custody, transfer and DeFi connectivity — integrated on one API-first platform.

Issuance

Trust-type JPY stablecoin issuance and redemption, fully API-driven.

  • Issuance and redemption through one API
  • JPY reserves locked at the trust bank before minting
  • ERC-20 tokens deployed by the mint contract
  • Trust-Type
  • API-First
  • ERC-20
How it works
JPY depositFiat input
Trust bankReserve lock
Mint contractERC-20 deploy
JPY SCLive token
Issuance & redemption · API-driven

Custody

HSM + MultiSig key management with policy-enforced approval workflows — built on Thales Luna HSM with custom FM.

  • Keys stay inside Thales Luna HSMs (FIPS 140-3 Level 3)
  • NexBridge custom FM runs inside the secure boundary
  • M-of-N MultiSig and policy-enforced approvals
  • Thales Luna HSM
  • Custom FM
  • M-of-N MultiSig
How it works
HSM moduleHardware secured
MultiSig2-of-3 threshold
Policy engineRule enforcement
Security pipeline

Transfer & Payment

Cross-border P2P settlement with ZK privacy and compliance audit.

  • Cross-border P2P settlement between institutions
  • ZK proofs keep transaction data private
  • Compliance audit with KYC / AML checks
  • ZK Privacy
  • KYC / AML
  • Cross-Border
How it works
Sender · Bank ATokyo, JP
ZK privacy poolCompliant + private
Receiver · Bank BSingapore
On-chain settlement · ZK privacy · Compliance audit

Connect (DeFi)

DeFi protocol integration for institutional yield and liquidity management.

  • One API gateway to Aave, Uniswap, Curve and Compound
  • Governed by Policy Engine guardrails
  • Institutional yield and liquidity management
  • Policy Guardrails
  • Institutional Yield
  • DeFi API
How it works
AaveLending pool
UniswapAMM / swap
CurveStable swap
CompoundYield / supply
NexBridge ConnectAPI gateway
Policy-guarded DeFi connectivity

02 Private chain

Prividium™ — on-premise private chain for Japan

Co-developed with Matter Labs, the team behind ZKsync. A fully customized, on-premise Prividium™ deployment: an EVM private chain for institutional token deposits — ZKP privacy, anchored to Ethereum, interoperable across EVM chains.

Matter Labs Prividium

  • On-premise

    A fully customized Prividium™ deployment, run on premise.

  • EVM token deposit

    An EVM private chain for institutional token deposits.

  • ZKP privacy

    Zero-knowledge proofs keep institutional data private.

  • Anchored & interoperable

    Anchored to Ethereum, interoperable across EVM chains.

03 Architecture

From API call to on-chain settlement

Requests flow from the API gateway and compliance layer, through HSM-backed key management and signing and air-gapped cold storage, to the blockchain settlement layer.

API gateway + compliance layerL1
Key management & signingL2
HSMHardware keys
MultiSigM-of-N auth
Policy engineGuardrails
Air-gapped cold storageL3
Blockchain settlement layer LiveL4
Request flow · top to bottom

For Financial Institutions

Power your stablecoin strategy

Explore how NexBridge can power your stablecoin strategy — from issuance to custody to DeFi connectivity.

Get in touch jean@nexbridge.xyz