Stable—a Layer 1 blockchain optimized for stablecoin payments—announced the official launch of its public testnet, marking a key milestone in its roadmap to create a “stablechain” powered by Tether’s USDT.
This development positions Stable as the first dedicated blockchain using USDT as its native gas and settlement token, aiming to address common pain points in stablecoin transactions like high fees, slow settlements, and complexity.
With USDT dominating stablecoin volume over $27 trillion processed last year, Stable’s focus on native USDT integration promises sub-second finality, gasless peer-to-peer transfers, and predictable 1 Gwei fees, targeting 10,000+ transactions per second (TPS).
The public testnet is developer-focused but open to anyone for experimentation. Native USDT system modul supports seamless USDT transfers and fee settlements. Easy porting from Ethereum, with integrations for partners like Morpho, Pendle, LayerZero, and zkCodex an analytics dashboard for testing features like NFT mints, GM streaks, and contract deployment.
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No user missions or rewards are active yet—this is pure testing ground. To get started connect an EVM-compatible wallet (e.g., MetaMask) to the Stable testnet (RPC: rpc.stable.network). Claim test tokens via the faucet. Explore on zkCodex: Search for “Stable” chain and try casual interactions.
The network is already showing smooth performance in early tests, with quick token claims and fast confirmations.Background and RoadmapStable emerged from stealth in June 2025, backed by Bitfinex which incubated the project and USDT0 (la LayerZero-powered decentralized USDT variant.
It raised $28 million in seed funding in August 2025 from investors including Hack VC, Franklin Templeton, and angels like Bryan Johnson. Tether CEO Paolo Ardoino has publicly endorsed it, highlighting its potential amid U.S. regulatory shifts toward stablecoin clarity (e.g., the GENIUS Act).
The testnet follows a private beta phase and builds on Phase 1 of Stable’s roadmap, which capped pre-deposits at $825 million in just 20 minutes. Upcoming: Phase 2 Pre-Deposits: Open November 6, 2025, targeting $1B+ TVL before mainnet.
Mainnet Launch: Q4 2025, with vault migrations from Ethereum. Future upgrades Optimistic parallel execution (Phase 2) and DAG-based consensus (Phase 3) for enhanced scalability. Governance Token: Expected Q1 2026.
Stable also integrates other stablecoins like PayPal’s PYUSD as a day-one partner, broadening its appeal beyond USDT. Stablecoin chains like this are part of a broader race including Plasma, Noble, and Codex to capture the $157B+ USDT market by enabling real-world use cases like remittances and payments.
The launch of Stable’s public testnet on November 3, 2025, is more than a technical milestone—it signals the beginning of a dedicated stablecoin-native blockchain with USDT as its core economic engine.
Users pay fees in USDT, not ETH or another volatile token. Predictable costs (1 Gwei flat). Instant settlement for payments, remittances, and DeFi. Send USDT directly without needing ETH or other gas tokens.
Designed for high-throughput real-world use (vs. Ethereum’s ~15 TPS). Stablecoins move from being applications on general-purpose chains to the native currency of a purpose-built payment rail.
Tether’s Strategic ExpansionTether (issuer of USDT) is not just a stablecoin issuer anymore—it’s becoming a blockchain infrastructure provider. Bitfinex incubated Stable and holds a major stake. Tether CEO Paolo Ardoino is a vocal advocate. USDT0 (LayerZero OFT standard) enables cross-chain USDT liquidity into Stable.
Tether is vertically integrating—controlling issuance, transport, and now the execution layer. This strengthens USDT’s dominance (currently 70%+ of stablecoin volume).Risk: Centralization concerns rise. If Stable becomes the primary USDT chain, Tether gains even more control over transaction flow.
First-mover advantage goes to Stable due to: USDT’s unmatched liquidity ($157B+ market cap). Pre-deposit momentum ($825M in 20 minutes). Winner-takes-most potential in stablecoin-specific infrastructure. Stable enables new primitives currently impossible or expensive.
Stablecoins become viable for mainstream finance, not just crypto trading. The U.S. is moving fast on stablecoin legislation: GENIUS Act (bipartisan support) aims to clarify stablecoin regulation.
Stable launches at the perfect regulatory moment. A compliant, USDT-native chain could become a preferred rail for institutions. Bitfinex’s involvement adds credibility—despite past controversies, it’s a known entity in traditional finance circles.
Stable’s testnet is the first brick in a new financial internet where:Stablecoins are the default money. Payments are instant and free. Fees are predictable. Developers build natively in USDT
If mainnet delivers (Q4 2025), Stable could capture 10–20% of USDT’s on-chain volume within 12 months—that’s $2–5 trillion annualized. This isn’t just another L2. It’s the first stablecoin-native economy—and it’s live now.By natively using USDT for gas, it eliminates volatility in fees—users pay in the same stable asset they’re transacting.