Solana Stablecoin Standard
GitHub: solanabr/solana-stablecoin-standard Status: Complete — v1 shipped March 2026; repository archived (read-only), available as a reference implementation Maintained by: @lvj_luiz and @kauenet
Overview
A standardized interface for stablecoin issuance and management on Solana. Defines two specifications — SSS-1 (minimal) for core stablecoin functionality and SSS-2 (compliant), which adds blacklist enforcement via transfer hook and KYC-gated accounts.
The v1 release shipped a complete toolkit: the SSS-Core Anchor program, a blacklist transfer-hook program, a CLI, a TypeScript SDK, a REST backend, and a React demo.
Why It Matters
Stablecoins are the backbone of DeFi. Without a shared standard, each issuer implements minting, burning, freezing, and compliance controls differently. This fragments the ecosystem: exchanges need custom integrations per stablecoin, DeFi protocols cannot generalize their stablecoin handling, and compliance becomes ad-hoc.
The Solana Stablecoin Standard provides a common interface so that issuers, exchanges, and DeFi protocols can interoperate through a single specification.
Features
SSS-1 (Minimal)
The core stablecoin interface covering fundamental operations:
Mint and burn controls
Freeze and thaw accounts
Transfer restrictions
Authority management
SSS-2 (Compliant)
Builds on SSS-1 with blacklist enforcement via transfer hook and KYC-gated accounts, for institutional and compliance-focused deployments:
Compliance hooks for KYC/AML enforcement
Blacklisting and whitelisting
Upgradeable oracle integration
Configurable transfer restrictions
OpenZeppelin Collaboration
Main contributor @lvj_luiz from OpenZeppelin brings battle-tested security expertise from the Ethereum ecosystem. The standard benefits from the same rigor applied to OpenZeppelin's widely-used Solidity contracts.
Compliance-Ready
Built with regulatory requirements in mind. Transfer hooks enable issuers to enforce KYC checks, geographic restrictions, and other compliance policies at the protocol level.
Token-2022 Native
Leverages Solana's Token Extensions program for advanced functionality:
Transfer hooks for compliance enforcement
Confidential transfers for privacy-preserving payments
Non-transferable metadata for issuer attestations
Live References
Video demo: Solana Stablecoin Standard demo
SSS-Core program (devnet):
4ZFzYcNVDSew79hSAVRdtDuMqe9g4vYh7CFvitPSy5DDBlacklist Transfer Hook program (devnet):
84rPjkmmoP3oYZVxjtL2rdcT6hC5Rts6N5XzJTFcJEk6
Both program IDs are as listed in the repository README.
Tech Stack
Anchor
Token-2022
Rust
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