Solana Stablecoin Standard

Solana Stablecoin Standard, or SSS, is a Token-2022 framework for launching stablecoins on Solana with a clean split between on-chain controls and operator tooling.

It combines:

• sss-token, the core program for minting, burning, freezing, role management, blacklisting, seizure, and reserve attestations
• sss-transfer-hook, the optional Token-2022 transfer hook used by SSS-2 mints
• a TypeScript SDK published as solana-stablecoin-standard@0.2.1
• a TUI admin console, backend API, and web frontend for issuer operations

Why It Exists

SSS is built for issuers who need more than a plain SPL token. The design targets the kinds of controls discussed in U.S. stablecoin proposals such as the GENIUS Act and the STABLE Act:

• explicit mint and burn authority
• role-separated operational controls
• reserve attestation records
• sanctions response and blacklist enforcement
• emergency pause and freeze flows

SSS is infrastructure, not legal compliance by itself. It gives an issuer verifiable on-chain primitives that a legal, compliance, and finance stack can build around.

Preset Model

SSS uses preset-driven mint initialization:

Preset	Intended use	Key features
SSS1	Minimal stablecoins	Mint, burn, freeze, thaw, pause, reserve attestations
SSS2	Compliance-heavy stablecoins	SSS1 plus permanent delegate, transfer hook, blacklist, seize
SSS3	Privacy-oriented stablecoins	SSS1 plus permanent delegate and confidential transfer mint extension
Custom	Advanced operators	Explicit feature flags at initialization time

Core Components

Programs

• sss-token: 5ZBiFxX4ggWfNR5VhAQDRZauG6CvG84puS4SQiH8BcL4
• sss-transfer-hook: FmujD82V5FB6Nus7mbEV2a7cp5HG32gsiHykmtNSRJxy

Token-2022 Extensions

Depending on the preset, SSS initializes:

• MetadataPointer
• PermanentDelegate
• TransferHook
• DefaultAccountState
• ConfidentialTransferMint

What You Can Build

• issuer-admin stablecoins with quota-based minters
• compliant payment tokens with blacklist and seizure controls
• reserve-backed assets with immutable attestation history
• operational dashboards that parse on-chain events with the SDK

Read This Site In Order

1. Quickstart for the shortest path to a working mint
2. Installation for package and runtime expectations
3. SDK Client for the concrete API surface
4. Architecture Overview for PDAs and instruction flow

Current Implementation Notes

• Reserve attestations are persisted as PDAs. The current program does not emit a dedicated reserve-attestation event.
• AuditLogEntry and AuditLogRecorded are defined in source, but the current program does not write audit PDAs or emit the audit event.
• Transfer-hook enforcement is a separate one-time setup step for hook-enabled mints.