Question 1

What is Celo Euro (CEUR)?

Accepted Answer

Celo Euro (CEUR), also styled as cEUR, is a euro-pegged stablecoin native to the Celo blockchain. Introduced via a community governance proposal in June 2021, it is one of several stable assets supported by Celo’s Mento Protocol. CEUR is backed by a diversified reserve of digital assets, including CELO, BTC, ETH, and other stablecoins, held within Celo’s smart contract-based reserve system, designed to automatically expand or contract supply to maintain the peg.

Question 2

What is CEUR used for?

Accepted Answer

- **On-chain euro payments and settlements**: Optimised for mobile-first transfers, CEUR supports fast, low-cost transactions using phone number-linked wallets  
- **Financial inclusion**: Designed for underserved regions, CEUR enables access to fiat-denominated value through mobile devices  
- **DeFi liquidity and composability**: Compatible with Celo’s ecosystem and bridges to other chains, CEUR can be used in lending, trading, and payments  
- **Value stability amid macro shifts**: Euro-denominated stablecoins, including CEUR, have seen rising demand during USD volatility as tools for safe-haven use.

Question 3

How does CEUR maintain its peg?

Accepted Answer

CEUR’s design relies on algorithmic stabilisation via the Mento Protocol:

- **Reserve-backed issuance/redemption**: Users mint CEUR by burning CELO; conversely, burning CEUR returns CELO based on the protocol's constant-product-market-maker logic  
- **Overcollateralisation**: The reserve often holds significantly more value than outstanding CEUR to withstand crypto price swings  
- **Peg enforcement via arbitrage**: Market participants are incentivised to restore parity when deviation occurs by minting or burning based on price differences  
- **Automated supply adjustments**: Smart contracts dynamically adjust supply to maintain stability, tailored to Celo's ecosystem.

Question 4

Who created Celo Euro (CEUR)?

Accepted Answer

CEUR was launched through the governance of the Celo ecosystem, overseen by the Celo Foundation and its community. The broader Celo project was founded in 2017 by René Reinsberg, Marek Olszewski, and Sep Kamvar, who envisioned a mobile-first blockchain platform focused on accessibility, financial inclusion, and stability. CEUR was introduced in 2021 as part of Celo’s Mento stablecoin framework.