Live on Base Mainnet

Collateral
Without Borders

A NAV-accreting token backed by Brazilian DI fund units — tracking CDI (~14–15% p.a. gross, not guaranteed) — bridged into global DeFi lending markets. First-world credit, from anywhere.

Start Earning Whitepaper v1 (superseded)
CDI Base Rate
~15%
NAV Accrual
CDI − 0.20%
Redemption
BRL · PIX
Backing
DI · BTG
Protocol

From PIX to DeFi Yield
in Four Steps

Bridging Brazil's regulated financial infrastructure into permissionless DeFi lending markets.

Step 01
💳
Deposit via PIX
Send BRL via PIX to the EFIX funding account. Funds received instantly through HausBank's payment infrastructure.
Step 02
🏦
EFIX Subscribes Fund Units
The EFIX group subscribes units of BTG Pactual Tesouro Selic FI RF Referenciado DI (min. 95% in LFTs), held by Develop Participações, an EFIX group affiliate.
Step 03
🪙
Mint efixDI Tokens
efixDI minted on Base after settlement, at the current NAV — not 1:1 with fund units. The NAV accrues CDI daily.
Step 04
⚡
Leverage on Morpho
Deposit efixDI as collateral on Morpho Blue (Base), borrow USDC, loop for enhanced yield.
Advantages

Why DI-Fund-Backed Collateral?

Backed by units of a government-securities DI fund; token holders are not fund unitholders. Not a guaranteed product: no capital protection.

🛡️
Fund-Backed Collateral
Token backed by units of BTG Pactual Tesouro Selic FI RF Referenciado DI, held by Develop Participações, an EFIX group affiliate; NAV-accreting, not 1:1 with fund units. Not a guaranteed product.
⏱️
BRL Redemption via Portal
BRL redemptions through the EFIX portal are paid by PIX, within per-request limits. This is not a redemption at the fund.
🌐
Issued on Base
efixDI lives on Base, where it is minted and used in DeFi; the legacy Polygon token is paused. Composable with Morpho, Aave, and beyond.
📊
Sustainable Yield Spread
Earns the spread between CDI returns (~15%) and USDC borrow costs (~1-5%). Structural, non-speculative yield independent of crypto markets.
Economics

Yield Enhancement Model

Each leverage loop multiplies exposure to the CDI-USDC spread. Protocol targets 2-3 loops for optimal risk-adjusted returns.

Strategy Multiplier Gross APY Net APY Health Factor
Hold (no leverage) 1.00× 15.0% 12.5% ∞
1 Loop 1.77× 22.7% 20.0% 1.77
2 Loops ★ Recommended 2.36× 28.6% 25.6% 1.49
3 Loops 2.82× 33.2% 29.8% 1.38
4 Loops (max) 3.05× 35.5% 33.0% 1.28

* Illustrative model only; no APY is promised or guaranteed. Net APY after 20% performance fee. Morpho Blue LLTV: 77%. Auto-deleverage triggers at Health Factor < 1.15. CDI rate: ~14.9% (Feb 2026). USDC borrow rate varies with market utilization.

Infrastructure

Deployed Contracts

Contracts live on mainnet. OpenZeppelin audited the Polygon efixDI token contract (15/15 findings resolved in the repository; the deployed Polygon token is immutable and paused). Base contracts (token, PSM, oracles) are not yet audited. Read the report ↗

🟣 Polygon · legacy (paused) Chain 137
EfixDI Token ✓ Audited 0x0408...6441
EfixCollateralVault V2 0xdE82...DE6B
EfixVault V2 (Legacy / Mode B) 0x2eA5...307C
PIX Bridge 0x1d97...f4C3
LayerZero OFT Adapter 0x6032...58Fc
Uniswap V3 Pool efixDI/USDC
Chainlink BRL/USD 0xB90D...f2c
BRTH Stablecoin 0x38fd...3AB7
🔵 Base Chain 8453
EfixDI Token 0xF5cA...5608
MinterBurner (LZ V2 · bridge discontinued) 0x400a...9a3
Morpho Vault V2 (legacy pilot, retired) 0xf4A3...CBd5
efixDI Oracle (NAV × BRL/USD) 0x9CD2...7788
NAV Oracle 0x77E3...67AC
Morpho Blue 0xBBBB...FFCb
Morpho Market efixDI/USDC (77% LLTV)
Morpho Market efixDI/USDC (77% LLTV)
Documentation

efixDI+ Protocol
Whitepaper v1 (superseded)

Superseded. Version 1.0 (February 2026) no longer reflects the current structure: issuance on Base, backing by BTG Pactual fund units, NAV-accreting token. Technical document covering protocol architecture, yield mechanics, risk framework, smart contract design, and regulatory compliance.

Details how EFIX creates a sustainable yield spread by bridging Brazil's R$6+ trillion fixed-income market into permissionless DeFi lending. Covers recursive leverage loops, liquidation risk, oracle design, and CVM regulatory framework.

Download v1 PDF (superseded) GitHub
efixDI+ Whitepaper v1.0 · superseded
February 2026 · 11 pages
  • 01 Executive Summary
  • 02 Market Opportunity
  • 03 Protocol Architecture
  • 04 Smart Contract Infrastructure
  • 05 Yield Enhancement Mathematics
  • 06 Oracle & Price Feeds
  • 07 Risk Framework
  • 08 Cross-Chain (LayerZero V2)
  • 09 Morpho Blue Integration
  • 10 Regulatory Compliance
  • 11 Security & Audit
  • 12 Roadmap
  • 13 Contact & Links
Download Whitepaper v1 (superseded)
Compliance

Regulatory Framework

EFIX Plataforma de Tokenização e Crowdfunding Ltda. — CVM Act 23.635/2025. efixDI is backed by units of a BTG Pactual DI fund held by an EFIX group affiliate.

Entity
EFIX Plataforma de Tokenização e Crowdfunding Ltda
CNPJ
60.756.859/0001-57
CVM Act
23.635 / 2025
Backing
BTG Pactual DI fund units
License
Tokenization & Crowdfunding Platform
Audit
OpenZeppelin — Polygon token only (15/15 resolved in repo; Base not audited) ↗