SubEtha

AI Platforms / Agents
Japan

About the project

SubEtha helps AI agents access paid APIs across payment systems while reducing on-chain payment linkability with zero-knowledge proofs. Its Router connects x402 and MPP across Solana, Base, Arc, Tempo, Hyperliquid, Robinhood Chain and Arbitrum: agents pay one way, providers receive another. All 20 cross-rail pairs are verified on testnets, with API delivery also verified on mainnet. Tested with Claude Code, Codex CLI and Grok Build. SubEtha payments via the Router are verified on testnet.

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GitHub · Source code subetha-labs/ subetha-router

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Team

peaceandwhisky
Founder & Engineer

Building SubEtha: private payments & cross-rail routing for AI agents. Founding member of Flovia, a Colosseum hackathon prize winner. Built cross-chain swaps at Mycel & Hana Network, AI DeFi strategies at HiveFi. Previously HashHub. Community manager: Cosmos Japan & Hyperliquid Japan.