M0 is an onchain stablecoin issuance protocol that lets approved institutions mint a shared base dollar token, $M, against high-quality collateral and then wrap it into branded stablecoins. Built by M^0 Labs and led by ex-MakerDAO contributor Luca Prosperi, M0 raised a Series A led by Bain Capital Crypto, with participation from Galaxy Ventures and other crypto-native investors. The protocol sits inside a stablecoin market that DeFiLlama measured at $315.3B as of June 5, 2026.
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M0 is not a consumer stablecoin. It is primary-market infrastructure: a clearing and settlement layer for issuers who want their own dollar product without operating bank rails, custody, and a smart-contract stack from scratch. Think of $M as a shared mint, and branded tokens like MetaMask's mUSD or Noble's USDN as the customer-facing wrappers built on top.
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M0 is an onchain issuance protocol that produces $M, a fully collateralized dollar token, and exposes the mint, redemption, and yield-sharing logic to third-party issuers. Approved minters post eligible collateral, validators attest to it, and the protocol clears the issuance and burns. Branded stablecoins are wrappers around $M.
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The structural pitch is neutrality. Where Tether and Circle each operate a single closed issuance pipeline, M0 separates the act of minting a dollar token from the brand and distribution layer sitting above it. That separation is what makes M0 a candidate piece of the broader stablecoin stack rather than another competitor on the secondary market. Protocol documentation lives at docs.m0.org, and the contracts are published under the m0-foundation GitHub organization.
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M0 uses a minter and validator architecture. Whitelisted minters post collateral, currently short-duration US Treasury exposure, and submit signed collateral updates. A separate set of validators verifies those updates onchain. Once verified, minters can issue $M up to a collateral-defined limit. Redemption burns $M and releases the underlying claim, with parameters governed by the Two Token Governance system.
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The mechanism splits the three jobs that issuers normally bundle. Custody of the underlying assets sits with a minter and its banking partners. Verification sits with validators that the protocol can replace through governance. Token issuance is just the onchain output. The M0 protocol documentation describes mint ratios, penalty rates for late collateral updates, and the cooldown periods that gate redemption. Because everything posts onchain, downstream issuers can read collateralization in real time rather than waiting for a monthly attestation PDF.
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M0 calls the wrapper layer the extension model. An issuer takes $M, locks it in an extension contract, and mints a branded token at one-to-one. The extension contract captures the yield from the underlying collateral and distributes it according to the issuer's rules. The brand handles distribution, KYB, and front-end UX. M0 handles the primary mint.
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Two live examples illustrate the model. MetaMask's mUSD, announced in 2025, is a consumer-facing dollar embedded in the MetaMask wallet, with M0 underneath. Noble's USDN is a yield-bearing stablecoin native to the Cosmos ecosystem, also built on M0. Usual Protocol uses similar extension mechanics for its USD0 product. Each issuer keeps its own customer relationship; M0 sits in the plumbing.
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M0 is not a peer of USDC or USDT. It is a layer below. Where Tether and Circle issue closed-loop dollar tokens directly to users and venues, M0 issues $M only to other issuers, who then mint their own branded tokens. The right comparison is to issuance-as-a-service rails like Bridge and Paxos, not to the consumer stablecoins themselves.
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The scale gap is wide. Per DeFiLlama as of June 5, 2026, USDT supply stood at $187.2B, USDC at $75.6B, and PYUSD at $2.9B inside a $315.3B total market. M0-based supply is small in absolute terms, but the model matters for the next leg of growth, where banks, fintechs, and asset managers want their own brand without owning the full stack.

M0 was founded by Luca Prosperi, a former MakerDAO contributor, alongside a team operating as M^0 Labs. The protocol raised a Series A led by Bain Capital Crypto, with Galaxy Ventures among the participating investors. The founding thesis is that stablecoin issuance should be unbundled the way payment processing was.
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Prosperi's background at MakerDAO shapes the design. The minter and validator split echoes Maker's separation of vault operators and oracle infrastructure, but with the consumer token replaced by a base layer that other brands build on. Funding details were reported by TechCrunch in May 2024, and the broader founding team is described on the M0 blog.
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M0 targets three early use cases: branded consumer dollars, treasury and payment company stablecoins, and cross-border settlement. Live and announced integrations include MetaMask's mUSD wallet product, Noble's USDN on Cosmos, Usual Protocol's USD0, the MoneyGram cross-border payment relationship, and KAST, a card and payments company building on M0 rails.
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The pattern across these integrations is the same. The partner owns the customer, the brand, and the distribution. M0 supplies the issuance, redemption, and reporting plumbing. MoneyGram's announcement framed the partnership as building blockchain-native dollar services for remittance corridors. For institutional buyers who do not want to run KYB with twelve different infrastructure providers, the model offers one integration that produces a token they can brand and govern.
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M0 is governed by a Two Token Governance system, or TTG. Two separate tokens, $POWER and $ZERO, control different policy levers. $POWER holders vote on routine parameters like minter onboarding, collateral lists, and rate updates. $ZERO holders act as a slower-moving safety layer that can veto or correct $POWER decisions. The split is designed to prevent capture by short-term holders.
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The risks are the ones any collateral-backed dollar inherits: minter solvency, validator collusion, oracle failure, and governance attacks on the parameter set. M0 publishes its governance contracts and parameter history through the TTG documentation. Downstream extension issuers carry their own additional risk surface, including the smart-contract logic of the wrapper and the legal status of the branded token in each jurisdiction. Stablecoin legislation, including S.1582 (the GENIUS Act) in the US Senate, would touch issuers more directly than the underlying protocol.
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M0 represents one credible answer to a structural question the stablecoin market is asking: should issuance stay closed and proprietary, or should it become shared infrastructure? The protocol is small today but architecturally aligned with how payments rails evolved offchain, where issuance, processing, and brand decoupled over decades.
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Competitors to watch are issuance-as-a-service providers like Bridge (acquired by Stripe), and Paxos, which issues PYUSD for PayPal and USDG for the Global Dollar Network. Bridge and Paxos operate as regulated, centralized issuance services with closed APIs. M0's bet is that an onchain, neutral, governance-controlled version of the same function will win the long tail of issuers who do not want to pick a single proprietary partner. Whether that bet pays off depends on how quickly large brands adopt the extension model and how the regulatory frame around stablecoin issuers settles over the next two years.
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Eco operates one layer up from issuance. M0 produces dollar tokens; Eco is the neutral aggregator that helps issuers, liquidity managers, and institutions orchestrate, clear, and settle across the chains and stablecoins those issuers eventually deploy. As more brands launch M0-based dollars, the orchestration layer above them becomes the place where price discovery, mint access, and best-execution analytics consolidate. Eco's posture is to remain neutral across rails and stablecoin brands.
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Supply figures throughout this article are taken from a DeFiLlama snapshot pulled June 5, 2026, covering the top 40 stablecoins by circulating supply. Funding details for M0 reference the Series A announcement from M^0 Labs and contemporaneous press coverage. Integration details reference public announcements from MetaMask, Noble, Usual, MoneyGram, and KAST. Protocol mechanics reference the M0 documentation at docs.m0.org and the contracts at github.com/m0-foundation as of June 2026.
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