zama-ai/fhevm

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

24825 stars · 1771 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

FHEVM is a full-stack framework from Zama that enables confidential smart contracts on EVM-compatible blockchains using Fully Homomorphic Encryption. It includes Solidity contracts, a Rust-based FHE coprocessor, and KMS connector components so encrypted transaction data and state can be processed directly on-chain.

Use cases

• build confidential smart contracts with encrypted on-chain state
• process encrypted data on EVM chains without decrypting it
• add end-to-end encrypted transactions to a dApp
• run private DeFi or voting contracts on Ethereum
• integrate FHE coprocessor with an existing blockchain app
• manage encryption keys for confidential contracts via a KMS

When to choose

• you need on-chain confidentiality that public smart contracts cannot provide
• you are building on EVM-compatible chains and want encrypted state to remain composable
• you want a maintained, well-documented FHE stack with gateway and KMS integration

When to avoid

• your dApp does not need transaction or state confidentiality
• you need a simple, low-gas solution - FHE computation adds overhead
• you are not targeting EVM-compatible blockchains
• you need a permissively simple license - the license is a custom BSD-3-Clause-Clear variant

Facets

framework · maturity active

cryptography security privacy sdk middleware blockchain privacy security developer-tools rust cross-platform fhe homomorphic-encryption smart-contracts evm confidential-computing solidity coprocessor zama cryptocurrency web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="zama-ai/fhevm")