aid: fhenix
name: Fhenix
description: >-
  Fhenix is a blockchain R&D company building confidential computing for
  EVM-compatible chains using Fully Homomorphic Encryption (FHE). Its CoFHE (FHE
  Coprocessor) lets Solidity smart contracts compute directly on encrypted data
  — encrypt inputs client-side, operate on ciphertexts on-chain via the FHE.sol
  Solidity libraries, and unseal results through a threshold decryption network,
  so sensitive state stays private without ever being decrypted on-chain. The
  developer stack is a smart-contract-plus-client-library surface (not a REST
  API): the cofhejs TypeScript SDK, Hardhat/Foundry plugins and starters, the
  fhenix-contracts Solidity libraries, and mock contracts for local testing.
  CoFHE is live on public testnets (Ethereum Sepolia, Arbitrum Sepolia, Base
  Sepolia) with mainnet planned. Fhenix is backed by Multicoin Capital.
url: https://raw.githubusercontent.com/api-evangelist/fhenix/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- multicoin-capital
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://cdn.prod.website-files.com/6864e9aed9e0a3fac7810db8/68ad4072103ad564b44f3854_Slide%2016_9%20-%20145.jpg
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Crypto Web3
- Blockchain
- Fully Homomorphic Encryption
- Confidential Computing
- Ethereum
- Privacy
- Smart Contracts
- Web3
- DeFi
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://fhenix.io
- type: DeveloperPortal
  url: https://cofhe-docs.fhenix.zone/
- type: Documentation
  url: https://cofhe-docs.fhenix.zone/
- type: GettingStarted
  url: https://learn.fhenix.io/
- type: GitHubOrganization
  url: https://github.com/fhenixprotocol
- type: Blog
  url: https://www.fhenix.io/blog
- type: Support
  url: https://discord.com/invite/FuVgxrvJMY
- type: StatusPage
  url: https://status.fhenix.zone/
- type: Packages
  url: packages/fhenix-packages.yml
- type: SDKs
  url: packages/fhenix-packages.yml
- type: LLMsTxt
  url: llms/fhenix-llms.txt
- type: Lifecycle
  url: lifecycle/fhenix-lifecycle.yml
- type: DomainSecurity
  url: security/fhenix-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence