Fei Protocol

Fei Protocol was an Ethereum-based decentralized finance (DeFi) protocol that launched in April 2021, introducing FEI, an algorithmic stablecoin backed by Protocol Controlled Value (PCV), alongside the TRIBE governance token. Founded by Joey Santoro, it merged with Rari Capital in December 2021 to form the Tribe DAO. Following the April 2022 Rari Fuse exploit, the Tribe DAO voted to wind down and dissolve the protocol later that year. Fei Protocol was backed by a16z (Andreessen Horowitz), Framework Ventures, and other investors. Its smart-contract code and documentation remain public on GitHub, but the protocol is no longer operational and its web properties (fei.money, docs.fei.money) are offline. Fei Protocol is an on-chain smart-contract system and exposes no public REST/HTTP API, so it carries no OpenAPI, SDK, or hosted API artifacts.

Fei Protocol is profiled on the APIs.io network. Tagged areas include Company, DeFi, Stablecoins, Ethereum, and Smart Contracts.

📡 Source on GitHub

0 APIs

Company DeFi Stablecoins Ethereum Smart Contracts DAO Cryptocurrency Blockchain Governance

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GitHubOrganization

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Source (apis.yml)

aid: fei-protocol
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fei-protocol.png
name: Fei Protocol
description: Fei Protocol was an Ethereum-based decentralized finance (DeFi) protocol that launched in April 2021, introducing
  FEI, an algorithmic stablecoin backed by Protocol Controlled Value (PCV), alongside the TRIBE governance token. Founded
  by Joey Santoro, it merged with Rari Capital in December 2021 to form the Tribe DAO. Following the April 2022 Rari Fuse
  exploit, the Tribe DAO voted to wind down and dissolve the protocol later that year. Fei Protocol was backed by a16z (Andreessen
  Horowitz), Framework Ventures, and other investors. Its smart-contract code and documentation remain public on GitHub, but
  the protocol is no longer operational and its web properties (fei.money, docs.fei.money) are offline. Fei Protocol is an
  on-chain smart-contract system and exposes no public REST/HTTP API, so it carries no OpenAPI, SDK, or hosted API artifacts.
url: https://raw.githubusercontent.com/api-evangelist/fei-protocol/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- DeFi
- Stablecoins
- Ethereum
- Smart Contracts
- DAO
- Cryptocurrency
- Blockchain
- Governance
tags_raw:
- Company
- DeFi
- Stablecoin
- Ethereum
- Smart Contracts
- DAO
- Cryptocurrency
- Blockchain
- Governance
common:
- type: GitHubOrganization
  url: https://github.com/fei-protocol
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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