Juno by Bitso and the Morpho open credit protocol have launched the first onchain lending markets denominated in Mexican pesos. The MXNB vaults, now live on Base and risk-curated by Gauntlet, let holders deposit and borrow against the peso-backed stablecoin directly — keeping value inside local currency rails instead of routing everything through dollars.

Context

MXNB is a regulated, fiat-backed stablecoin issued by Juno, a Bitso company. It maintains a 1:1 peg to the Mexican peso with reserves held as pesos and cash equivalents in Mexican institutions and regular independent attestations. The token first went live on Arbitrum, later expanded to Base, and recently moved into Ripple’s XRPL Permissioned DEX infrastructure for enterprise US-Mexico settlement alongside RLUSD.

Morpho functions as an open credit network. It provides the underlying infrastructure for customizable lending markets rather than a single monolithic pool. Protocols, curators, and institutions can spin up markets with specific risk parameters, oracles, and collateral rules. Morpho already holds over $11 billion in deposits and counts Coinbase, Galaxy, and other institutions among its users.

The peso vault launch landed shortly after Bitso hosted the Stablecoin Conference LATAM 2026 in Mexico City, where practical questions of local-currency stablecoin utility and onchain credit were front and center.

What the markets actually do

The new MXNB vault on Morpho (Base deployment) enables direct peso-denominated activity. Users supply MXNB to earn yield denominated in the same currency. Borrowers can draw liquidity against it, including in cross-currency configurations that pair MXNB with USDC or other assets.

Risk parameters include an 86% loan-to-liquidation-value (LLTV) ratio with oracle pricing for the positions. Gauntlet curates the vault, applying institutional-grade risk modeling and monitoring. The design keeps the entire loop — deposit, earn, borrow — inside MXNB where possible, removing the forced FX step that has historically been required for any yield or credit interaction in dollar-heavy DeFi.

MXNB itself stays accessible through Bitso’s existing on- and off-ramps. Mexican users fund via SPEI, acquire MXNB, move it onchain to Morpho, and can later redeem back to pesos through the same rails without leaving the regulated Bitso environment for custody or settlement.

Why LatAm cares

Most DeFi liquidity and lending markets remain dollar-denominated. For users and businesses whose revenue, costs, and savings sit in pesos, that creates constant currency mismatch risk plus spreads and settlement friction every time value moves on or off chain.

A native peso credit market changes the unit of account for onchain activity. A Mexican freelancer or small business can now park MXN-equivalent stablecoin value onchain and earn yield without first converting to USDC and accepting FX exposure. Borrowing can happen against that same collateral in structures that respect the local currency base.

The move also matters for the broader region. Other local-currency or regionally relevant stablecoins (BRLA in Brazil and similar experiments) now have a visible reference implementation: regulated issuer + established DeFi lending rails + risk curation + exchange on/off-ramps. It demonstrates that stablecoin utility in LatAm is maturing beyond simple remittances and trading into productive onchain credit.

Because the MXNB can be withdrawn to self-custody wallets on Base, participants who want onchain yield or credit access are not locked inside the exchange. The on-ramp and redemption stay inside familiar, regulated channels.

Takeaway

Bitso’s Juno and Morpho have delivered the first practical onchain credit market for the Mexican peso. It is a concrete step from “stablecoins for transfers” toward “local currency as a native onchain asset class” for users whose economic lives are lived in pesos.

The experiment is still early — liquidity depth, rates, and adoption will determine whether it becomes a template or a niche product. But the infrastructure now exists, and the timing after the region’s flagship stablecoin gathering makes the intent clear: LatAm builders want rails that speak the local language, not only the global reserve currency.

Not financial advice. Stablecoins carry issuer, reserve, peg, and smart-contract risks. Onchain lending adds liquidation, oracle, and liquidity risks. Yields are variable and can go to zero or negative after fees. Users should review the specific vault parameters, the issuer’s attestations, and their own risk tolerance before supplying or borrowing. Past availability does not guarantee future support or returns.

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