Overview
What ShadowLine is, who it is for, and how the confidential-token pieces fit together.
ShadowLine is the canonical interface and developer toolkit for Zama's confidential token ecosystem. It lets users and developers discover, wrap, unwrap, transfer, and decrypt ERC-20 tokens that have been converted into confidential ERC-7984 wrappers using Fully Homomorphic Encryption (FHE).
Live on-chain discovery of every registered ERC-20 ↔ ERC-7984 wrapper pair via the WrappersRegistry contract on Sepolia and Mainnet.
Wrap public ERC-20 tokens into encrypted confidential tokens, and unwrap them back — with automatic resume for interrupted operations.
Decrypt your encrypted portfolio balance with an EIP-712 permit signed in your wallet. It never auto-fires — always an explicit action.
Fetch all wrapper pairs from any language with a single GET request — no SDK or wallet connection required.
Who this is for
Users get a simple UI to privatize on-chain balances: shield a token, send it confidentially, and reveal balances only to yourself. Developers get a public REST API, a documented set of React SDK hooks, and verified contract addresses so they can build on the same registry ShadowLine does.
How to read these docs
Start with the Quick Start if you want to ship something today, or the Architecture and FHE & ERC-7984 pages if you want to understand the model first. The Guides walk through each product feature; the Developers and Referencesections are the lookup material you'll come back to. Use the Next button at the bottom of any page to read straight through.