stablecoin.xyz issues SBC, a multi-chain stablecoin designed for seamless movement across blockchain networks without supply duplication. The company provides developer tooling for agentic payments, including an agent payments platform and x402 protocol support, enabling machine-to-machine transactions and API monetization. SBC is natively issued on the Radius Network, where it serves as both the payment asset and gas fee currency.
Funding
Funding not disclosed
Founders
Product
Problem
Traditional stablecoins are often confined to a single blockchain, forcing developers to choose between network-specific implementations or complex bridging solutions that fragment liquidity and create supply duplication risks. Additionally, the growing agentic economy—where AI agents and machines transact autonomously—requires payment infrastructure that supports microtransactions, programmatic payments, and seamless cross-chain operability that existing stablecoin designs do not adequately address.
Solution
SBC is a multi-chain stablecoin engineered to move natively across blockchain networks without duplicating supply, ensuring each coin remains fully backed by fiat reserves. The stablecoin integrates with major wallets and DeFi platforms, while its smart contracts are audited and compliant with US Sanctions and BSA requirements. SBC leverages custom MPC infrastructure for scalable signing, minting, and burning operations, and abstracts gas fees through Paymasters to reduce adoption barriers. On the Radius Network, SBC serves as the native stablecoin and gas asset, collapsing the traditional separation between payment and network fee currencies. The company also provides a developer toolkit including AppKit, Paymaster implementations, and an x402 facilitator to enable agentic payments, API metering, and machine-to-machine transactions.
Target Audience
Primary customers are blockchain developers building on emerging networks like Radius, Web3 product teams integrating stablecoin payments, and developers creating agentic payment systems, AI agent platforms, and machine-to-machine monetization solutions.
Features
- Native multi-chain issuance with supply preservation across networks, preventing duplication and maintaining fiat backing integrity
- Automated reserve management through Brale with third-party attestations ensuring US-regulated backing
- Custom MPC infrastructure for scalable, efficient signing, minting, and burning across multiple chains
- Paymaster infrastructure that abstracts gas fees, enabling gasless transactions for end users
- x402 HTTP payment protocol SDK and facilitator for per-call API billing, pay-per-visit content access, and continuous payout streams
- Agent Payments Platform that configures spending wallets with built-in policies and automatically sets up x402 or MPP for endpoint monetization
- Smart contracts that automatically update to maintain compliance with US Sanctions and BSA requirements
- AppKit template preconfigured with wallet infrastructure providers and SBC Paymaster for rapid stablecoin payment flow deployment