One wallet. Every venue.
One buying-power number.
The pitch, in one paragraph.
A trader who only uses one venue does not need Atrium. The pitch only makes sense if you trade across two or more.
Post collateral on Hyperliquid for your perp. Post collateral on Aave for your lending. Post collateral on Pendle for your yield. The venues don't know about each other. Every one demands full margin. Your money is split across four sandboxes. If one congests, you withdraw, bridge, and redeposit by hand.
Deposit USDC once. Open positions across the same venues. Plinth sees the whole portfolio at once and nets the hedge. Collateral that would have been double-locked is free to back a third trade. If a venue fails, your money stays in the vault. One dashboard.
Less capital locked. Risks made visible.
Eight venues. One margin engine.
7 adapters registered in PorticoRegistry on Arbitrum Sepolia testnet. RH-Chain ships within 14 days of the Robinhood SDK going public.
Capital efficiency, mathematically.
Plinth computes a SPAN-style cross-product margin number in Rust, deployed as Stylus. The same math costs 10–100× more gas in equivalent Solidity.
Design preview · live data renders in /app/portfolio
Move collateral between chains in one transaction.
Aqueduct routes assets through Chainlink CCIP. Collateral on Robinhood Chain becomes Plinth credit on Arbitrum in under ten seconds.
Design preview · live transfers in /app/transfer
Agents trade with bounded mandates.
You sign one Intent Sigil, an EIP-712 mandate authorising one agent, for one strategy, for a finite window. Postern issues a session key. Your master key never moves.
Design preview · live mandates in /app/agents
Every dollar, on the public record.
Lantern publishes a signed Merkle attestation every ten minutes. Anyone can verify a balance against it locally, without trusting Atrium.
Design preview · live attestations in /app/reserves
Eighteen subsystems. One building.
The codebase is named after the parts of a Roman house. Plinth carries weight. Postern is the small gate. Aqueduct moves water. Each subsystem owns its room.
The system, named.
Seventeen subsystems and Postern, all trademark-checked, all testnet-buildable in Year 1.
Hand a fixed budget to an AI agent.
Pull the plug on every agent in the hand.
Sigil writes EIP-712 mandates over ERC-8004: per-action cap, daily-loss cap, venue allowlist, expiry. The kill switch revokes every mandate and cancels every active session key for your wallet in one signature.