Summary: Mento is a decentralized stablecoin and foreign-exchange protocol whose current docs frame Mento V3 as a DEX for onchain FX. Instead of reserve-curve pricing, its Fixed-Price Market Makers quote oracle FX rates, while the broader protocol includes reserve-backed and CDP-backed stable assets, rebalancing strategies, governance, and developer tooling.
What it does:
Issues and supports multiple fiat-referenced stable assets such as USDm, EURm, and GBPm, with the protocol and site positioning the system as multi-currency onchain FX infrastructure
Runs Mento V3 Fixed-Price Market Makers (FPMMs) that price swaps from oracle feeds rather than reserve curves, aiming to reduce slippage and loss-versus-rebalancing for FX markets
Uses trading limits, circuit breakers, oracle adapters, and allowlisted liquidity strategies to manage inventory and safety around oracle-priced pools
Exposes developer integration surfaces for stable assets, oracle usage, deployments, smart contracts, SDKs, governance, and reserve visibility
Publishes a substantial GitHub footprint spanning core contracts, CDP infrastructure, frontends, reserve tooling, analytics, and docs rather than relying on a thin marketing site alone
Key claims:
The official docs define Mento V3 as “a decentralized exchange (DEX) for onchain foreign exchange (FX)” where pools “always quote” an oracle rate, with Chainlink currently used for the FX oracle path
The FPMM docs explicitly argue that FX and stablecoin markets should use external fair-value pricing instead of reserve-based curve discovery, and document market-hours restrictions for FX-priced pools
The homepage claims more than 12M users across currencies, $18.5B trading volume in 2025, 277M transactions in 2025, and 15 live stablecoins; these should be treated as project claims rather than independently verified facts
The repository overview makes the product surface concrete: mento-core for FPMMs/oracles/strategies, bold for CDP-backed FX stables, and a frontend monorepo for exchange, governance, reserve, and MiniPay surfaces
Security docs point to protocol-wide risk overviews and audit reports, which is useful because the real trust model is broader than a single AMM contract
Whitepaper: No single current canonical Mento V3 whitepaper was found in the official materials reviewed during this pass. The official mento-core README links to a legacy Stability Whitepaper, but the strongest current source of truth is the Mento docs portal plus the protocol’s GitHub repositories; see ../whitepapers/mento-primary-sources-2026-04-26.md.