Overview

Spherra is an n-token stablecoin AMM: every stablecoin lives in one pool instead of dozens of pairwise pools. It's based on Paradigm's published Orbital design — liquidity sits on an n-dimensional sphere, trades move along the surface, and concentrated-liquidity ticks let LPs place capital exactly where stables trade (near peg).

Two things make it worth reading further:

• The core math is formally verified (Lean 4, zero sorry) and the Solidity is differential-tested

against a 60-digit reference oracle. You can check all of it — see The Proofs.

• It's designed to survive a depeg. When a stablecoin breaks, the pool quarantines it and reduces

dimension so the other stables keep trading, instead of draining LPs. See Lifecycle & safety.

Is there a token?

No. Spherra is a pure protocol — no token, no airdrop, no points. If a page, DM, or thread tells you otherwise, it isn't us.

Two doors

• I want to LP → start with the LP guide (read the risk section first).
• I want to integrate → start with Integrate (addresses, ABIs, a quote+swap).

Status

Implementation complete and live on Arbitrum Sepolia testnet. No audit firm is engaged yet — we never say "audited" until the report is public. Mainnet is roughly 1–2 months out. Providing liquidity carries risk, including loss of capital.