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Brazil DREX × Mexico Banxico CoDi × Latin America CBDC and stablecoin parallel architecture 2026

Confidence: Likely Updated 2026-05-26 Review by 2026-11-25 Sources 7 Machine-translated Original (JA)
#fintech#stablecoin#cbdc#brazil#mexico#latam
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TL;DR

Brazil and Mexico enter, in 2026 年 around the same time, a three-track parallel stage of “CBDC + private stablecoin + USD SC graying.” Brazil’s DREX expands its 2 th-round pilot to 16 institutions in 2025-12 , covering a wholesale + retail dual-layer (consistent with CBDC Multi-Tier Architecture Overview); Mercado Bitcoin issues a BRL-anchored stablecoin on Polygon / Ethereum to complement the market version of DREX, forming a “public-private dual track” with DREX. Mexico’s Banxico does not issue a retail CBDC but deepens CoDi instant settlement and, by tacitly allowing **MXNB jointly issued by Bitso × Mercado Bitcoin × M0 ** (a Mexican peso stablecoin, see M0 / M Network 2026 Infrastructure Update: M Bridge, Mexican Peso, USDM, and Neutral Middleware), presents a “defensive home-currency SC” alternative against USDC/USDT gray dollarization. This configuration positions Latin America as a second route outside Emerging Market Crypto Dollarization Pattern: rather than abandoning the home currency, it runs home-currency SC + CBDC in parallel to suppress the penetration of USD SC.

Wiki route

This entry sits under fintech index. Read it with Emerging Market Crypto Dollarization Pattern for the dollar pressure backdrop and mBridge · BIS Multi-CBDC Cross-Border Payment Bridge (Overview) for the cross-CBDC payments context. With India Anti-Dollar DPI Alliance — UPI / MOSIP / ARC Three-Axis Narrative it is a cross-comparison of the 2 home-currency defense routes of Latin America vs India.

Key facts (2026-05 snapshot)

  • DREX 2 th-round pilot launched 2025-12 , participating institutions 16 社 (including Itaú / Bradesco / Santander Brasil / Banco do Brasil / Caixa / BTG Pactual / Mercado Bitcoin / Visa Brasil, etc.) ^[bcb-press]
  • DREX TVL (pilot stage) R$3.5B ($700M) of simulated financial assets in circulation ^[bcb-press]
  • Mercado Bitcoin BRL stablecoin (MBR$) circulation R$280M ($56M, 2026-05); deployment chains are Polygon + Ethereum + Avalanche ^[issuer-press]
  • Banxico CoDi monthly transaction volume ~7,200 万 transactions (2026-03), +120% year-on-year (driven by the SPEI limit reduction) ^[banxico]
  • MXNB stablecoin (M0 + Bitso) circulation MXN 450M ($25M); the 1 th phase is limited to Bitso-internal + DeFi testing ^[bitso-press]
  • USDC/USDT in Brazil monthly on-chain inflow ~$4.5B (2026-Q1), mainly via Bitso BR / Mercado Bitcoin / Foxbit ^[chainalysis-report]
  • USDC/USDT in Mexico monthly on-chain inflow ~$2.8B (2026-Q1), Bitso occupies the 60%+ share on the exchange side ^[chainalysis-report]
  • Brazil CVM (Securities Commission) 2026-04 communiqué incorporates BRL-anchored SC into the e-money / payment instrument regulatory framework, excluding securities attributes ^[cvm-press]
  • Mexico CNBV / Banxico 2026-Q1 joint statement hints at an “observe + non-obstruction” stance toward home-currency SC, in contrast to a “clearly not recommended” stance toward USD SC ^[banxico-press]

DREX (Brazil) details

Project official name: Digital Real (DREX) — led by the Central Bank of Brazil (Banco Central do Brasil, BCB), began research in 2020 年, conducted the 1 th-round pilot in 2023 年, and expanded the 2 th-round pilot in 2025-12 .

Architecture: dual-tier — wholesale CBDC (interbank DLT layer, Hyperledger Besu private chain) + tokenized commercial-bank deposits (CBDC-backed deposit tokens) to address retail. This is consistent with the “indirect issuance + commercial-bank tokenized deposits” paradigm in 3 Major Active CBDC Paradigms.

Key changes in the 2 th-round pilot (launched 2025-12 ):

  1. Expansion of the asset scope: the 1 th round tested only government bonds + real-estate tokenization; the 2 th round adds corporate bonds / receivables / agricultural-product warehouse receipts / secondary-market settlement / FX exchange
  2. Number of institutions: expanded from 9 社 in 2023 年 to 16 社
  3. Entry of crypto-asset-native operators: Mercado Bitcoin becomes the first crypto exchange to obtain DREX pilot eligibility, a milestone for the interoperability trial of “private-chain CBDC + public-chain SC”
  4. Cross-border connection: BCB is studying a compatibility path with the BIS Innovation Hub and the mBridge model (see mBridge · BIS Multi-CBDC Cross-Border Payment Bridge (Overview)), but Brazil is not an mBridge 6 -country member

Relationship between DREX and Pix: Pix (BCB instant settlement system, launched 2020 ) has already become a national-level payment channel in Brazil, with monthly transaction volume over 60 億. DREX does not replace Pix but adds, on top of Pix, a layer of programmability + atomic settlement for financial institutions. Pix national-level + DREX institutional-level + Mercado Bitcoin BRL SC crypto-native-level = the three-track architecture of Brazil’s payment layer.

Mercado Bitcoin BRL stablecoin

Issuer: Mercado Bitcoin (Brazil’s largest domestic crypto exchange, established 2013 , with SoftBank Group leading at a $2.1B valuation in 2021 年)

Mechanism: BRL 1:1 anchor, with reserves of Brazilian short-term government bonds (LFT) + central-bank deposits + commercial-bank deposits. Monthly disclosure of reserves is audited by KPMG Brazil.

Positioning: rather than replacing DREX, it fills the market gap before DREX’s full launch (scheduled 2027-2028 ) and provides a bridgehead for “interoperability of private BRL tokens and CBDC” in the DREX era.

Chain selection: Polygon as the main axis (driven by the background of Polygon’s collaboration with multiple Latin American central banks in 3 Major Active CBDC Paradigms) + Ethereum (cross-border liquidity) + Avalanche (DeFi compatibility).

Use cases: (1) substituting for fiat-deposit delays via BRL pairs within crypto exchanges; (2) cross-border settlement (BRL settlement to exporters bound for Argentina / Uruguay / Paraguay); (3) BRL collateral / liquidity mining in DeFi protocols; (4) BRL token wallets embedded in Mercado Pago and other fintechs.

Banxico CoDi × MXNB pilot (Mexico)

Banxico’s (Mexican central bank’s) stance: it issues neither a retail CBDC nor a wholesale CBDC but deepens CoDi (instant settlement QR-code protocol, launched 2019 ) + SPEI (interbank instant transfer, launched 2004 ). Banxico Governor Victoria Rodríguez has repeatedly stated publicly: “The essential problem of the digital peso is not technology but the efficiency of the existing payment system.” This is in the opposite direction from the strong-CBDC route of China’s e-CNY / Brazil’s DREX.

CoDi 2026 status:

  • monthly transaction volume ~7,200 万 (2026-03), +120% year-on-year
  • main driver: the SPEI cap was lowered from MXN 8,000 to 0 , so small-value CoDi and SPEI cover continuously
  • number of merchant connections ~3.5M (2026-05)
  • compared with Pix (Brazil, 60 億/month) it is still 2 orders of magnitude smaller, but the growth rate is high

MXNB (M0 + Bitso pilot):

  • issuer: arranged by Bitso, with Mercado Bitcoin (Brazil side) as sub-issuer, and the base infrastructure is M0 (see M0 / M Network 2026 Infrastructure Update: M Bridge, Mexican Peso, USDM, and Neutral Middleware)
  • chains: Base / Ethereum / Polygon
  • reserves: Mexican short-term government bonds (CETES) + commercial-bank MXN deposits
  • circulation MXN 450M (~$25M, 2026-05), still at the pilot stage
  • strategic intent: in the period when Banxico does not issue a CBDC, leverage private home-currency SC + M0 neutral infrastructure to build a home-currency defense layer against the graying of USDC/USDT

Bitso’s role: Bitso is Mexico’s largest crypto exchange + a Latam cross-border settlement channel (long-term collaboration with Stellar to provide US-Mexico remittance). 2024 valuation $2.2B. Bitso is simultaneously:

  1. the largest distributor of USDC / USDT in Mexico (unable to suppress USD SC penetration)
  2. a co-issuer of MXNB (actively providing a home-currency-alternative option)
  3. one of the 1 merchant-connection gateways for Banxico CoDi

This “triangular positioning” makes Bitso the most important market node in Mexico’s payment layer.

Dual track (CBDC + home-currency SC) vs single track (gray dollarization)

DimensionBrazil (DREX + BRL SC)Mexico (CoDi + MXNB)Argentina (no CBDC + gray USDT)Venezuela (Petro failure + USDT)
CBDC routeDREX actively promotedNone (Banxico declines)None (political instability)Petro failure
Home-currency SCMercado Bitcoin BRL ~$56MMXNB ~$25Malmost nonealmost none
USD SC monthly inflow~$4.5B~$2.8B~$2.5B (largest relative to GDP)~$1.2B
Instant settlement channelPix 60 億/monthCoDi 7,200 万/monthweakextremely weak
Regulatory stanceactive (explicit framework of BCB + CVM)tacit acceptance + observationcontradictory (central bank strict, finance ministry lenient)nominally strict, effectively laissez-faire
Anti-USD-SC effectmedium (provides home-currency alternative via Pix + DREX)weak (CoDi scale is small)failurefailure

Core insight: Brazil has, with the three layers of Pix + DREX + BRL SC, assembled the convenience, programmability, and crypto interoperability of the home currency in full, which is the most complete “anti-dollarization tech stack” among current EM countries. Mexico is next (CoDi + MXNB are still scaling up). Argentina / Venezuela are counterexamples of “abandoning the home currency → USDT-ization,” consistent with the “sovereign-currency-collapse country” list in The jurisdiction list as a tool of monetary protectionism.

Distance from mBridge / Project Agora

Brazil and Mexico are both not mBridge 6 -country members (see mBridge · BIS Multi-CBDC Cross-Border Payment Bridge (Overview)). The BIS 2025-09 working paper (BIS WP No. 1156) suggests that Latin America’s multi-CBDC bridging is more likely to head toward an IADB (Inter-American Development Bank)-led regional pilot rather than joining mBridge.

From the technical compatibility of DREX and mBridge (both being Hyperledger Besu permissioned chains), a “future connection” is possible, but politically Brazil + Mexico keep their distance from the China-led mBridge coalition. This is consistent with Latin America’s “non-alignment + pragmatism” stance in The jurisdiction list as a tool of monetary protectionism.

In-depth coupling with the M0 MXNB pilot

The MXNB pilot is the first non-dollar partner SC for M0 (see M0 / M Network 2026 Infrastructure Update: M Bridge, Mexican Peso, USDM, and Neutral Middleware), and also the first home-currency SC in Latin America that runs entirely on neutral SC infrastructure. This contrasts with Mercado Bitcoin BRL (self-built infrastructure):

DimensionMXNB (M0 infrastructure)Mercado Bitcoin BRL (self-built)
Compliance templateM0 standardization + Bitso local connectionMercado Bitcoin’s own compliance stack
Smart contractsM0 shared (OpenZeppelin + Trail of Bits + Certora audits)self-developed + self-audited
Reserve connectionM0 backend (CETES + commercial-bank deposits)self-custody (LFT + central-bank deposits + commercial-bank deposits)
Cross-chainM Bridge canonicalLayerZero + generic bridge
Governance$M DAO + de facto control by Bitso/Mercado BitcoinMercado Bitcoin 100% control
Regulatory burdenreduces the single burden by sharing the M0 templatebears the Mexico/Brazil regulatory burden alone

Implication: in Latin America, a “self-built vs infrastructure-sharing” divergence may appear in 2027-2028 — large local players self-build (the Mercado Bitcoin BRL model), small and mid-sized players share (the M0 MXNB model). This is the Latam version of Stablecoin public chain token strategy 3 state games.

Regulatory coordination and conflict

  • Brazil CVM 2026-04 communiqué: makes explicit that BRL-anchored SC = e-money (NOT a security), excludes the application of the Howey Test, and provides a clear compliance path for private home-currency SC
  • Brazil BCB Resolução 2026-006 (draft): proposes incorporating “BRL-anchored SC circulation” into the payment-system supervision dashboard, similar to the EU MiCA large-EMT restriction clauses (see MiCA EMT vs ART)
  • Mexico CNBV 2026-Q1 statement: “an observe + non-obstruction stance toward private home-currency SC, not recommended for foreign-currency SC”
  • Latin America regional IADB 2026-Q2 report: recommends member states adopt a “unified home-currency SC regulatory framework” + a “KYC/AML information-sharing mechanism”
  • Compatibility with FATF Travel Rule: Brazil + Mexico are both FATF / GAFILAT members, and cross-border circulation of BRL/MXN SC must comply with the Travel Rule

Sources