Mezo Prime Launches Bitcoin Yield Vaults With Anchorage Digital Bank, Seeded by Bullish

Mezo has unveiled “Mezo Prime,” an institutional bitcoin yield vault product built with Anchorage Digital Bank and seeded by Bullish, as institutions seek “secure BTC returns” without giving up custody or control.

“Mezo unveils institutional bitcoin yield vaults as demand grows to put idle BTC to work A new product from Mezo, backed by Anchorage Digital and seeded by Bullish, highlights a broader shift as institutions seek yield on bitcoin without sacrificing custody or control”

@coindesk

CoinDesk reports that Mezo Prime offers “segregated bitcoin yield vaults with Anchorage Digital custody,” describing the product as introducing “segregated vaults, or Enclaves,” designed for institutional requirements around “asset segregation, reporting and risk controls.”

@coindesk

FinanceFeeds adds that Mezo Prime is “an institutional product designed to give corporate treasuries and other professional Bitcoin holders access to on-chain yield and borrowing without leaving regulated custody,” and says it is “built in partnership with Anchorage Digital Bank.”

The product is anchored by Bullish, which CoinDesk says is “an early participant, deploying part of its BTC treasury into the project,” while FinanceFeeds specifies Bullish as the “core launch customer” and “the first institution to participate in the product.”

FinanceFeeds further states that Mezo Prime is available “directly through the Anchorage Digital platform to its existing institutional client base,” tying distribution to Anchorage’s institutional network.

CoinDesk says the project is backed by “250 BTC ($19.4 million) in funding from Bullish (BLSH),” and FinanceFeeds repeats that Bullish has an “250 BTC anchor allocation.”

Together, the sources frame Mezo Prime as a structured way for institutions to put idle bitcoin to work while keeping assets in a custody arrangement provided by Anchorage Digital Bank.

Mezo Prime’s core design, as described across the sources, centers on segregated vaults called “Enclaves” that isolate depositor assets and avoid commingling.

CoinDesk says Enclaves are “segregated vaults, or Enclaves, allowing institutions to earn yield on bitcoin held in custody with Anchorage Digital Bank,” and it ties the structure to institutional “asset segregation, reporting and risk controls.”

CoinDesk

FinanceFeeds provides more operational detail, saying Enclaves are “segregated Bitcoin vaults isolated per depositor, with no commingling of assets across accounts and no rehypothecation.”

The sources also describe two main ways bitcoin in an Enclave can be used: locked to earn protocol fees or used as collateral to borrow a bitcoin-backed stablecoin.

CoinDesk states that “Bitcoin deposited into the vaults can be locked to earn protocol fees or used as collateral to borrow MUSD, a bitcoin-backed stablecoin, without being rehypothecated.”

FinanceFeeds similarly says that bitcoin held in an Enclave can be “locked as veBTC to collect protocol fees in BTC,” or “used as collateral to borrow Mezo’s Bitcoin-backed stablecoin MUSD at a fixed rate.”

Taken together, the sources depict Mezo Prime as a custody-first yield and lending wrapper that uses Enclaves to keep institutional requirements aligned with on-chain activity.

The sources connect Mezo Prime to a broader shift in how institutions treat bitcoin, moving from “a store of value” toward using BTC as an asset that can generate returns.

“Mezo, the Bitcoin-native finance platform built by venture studio Thesis, has launched Mezo Prime — an institutional product designed to give corporate treasuries and other professional Bitcoin holders access to on-chain yield and borrowing without leaving regulated custody”

FinanceFeeds

CoinDesk says the product reflects “a broader shift as institutions seek yield on bitcoin without sacrificing custody or control,” and it adds that “Once treated primarily as a store of value, there are now numerous efforts to rebrand BTC as capital that can generate immediate returns.”

CoinDesk also emphasizes that “Many institutional holders are not content with assets just sitting there, doing nothing,” and it links that change to “the emergence of bitcoin-native yield infrastructure.”

It points to “Projects such as Rootstock and Babylon” as building “mechanisms that allow BTC to be used in lending, collateralized borrowing and other financial strategies without leaving the Bitcoin ecosystem.”

FinanceFeeds frames Mezo Prime as addressing a specific institutional constraint, saying firms “have largely had to choose between leaving it idle in custody or using arrangements that fall short of institutional control, reporting and risk standards.”

CoinDesk adds that “Enclaves are designed to meet institutional requirements around asset segregation, reporting and risk controls,” and it notes that these areas “have historically limited participation in crypto lending and decentralized finance (DeFi).”

Across the sources, the rationale is consistent: Mezo Prime is built to make on-chain yield and borrowing compatible with institutional custody and reporting expectations.

The launch coverage includes direct statements from Bullish executives, Mezo leadership, and Anchorage Digital’s chief executive, each tying Mezo Prime to institutional standards and custody.

FinanceFeeds quotes Bullish Vice President Tarun Kapoor saying, “Bullish was built on the belief that institutional standards and digital asset participation aren’t in conflict, and we’re delighted to work with Mezo as a launch customer,” and it adds that he singled out the veBTC design as “a great example of that philosophy in practice — mitigating smart contract risk and keeping the underlying BTC secure.”

@coindesk

FinanceFeeds also quotes Mezo co-founder and CEO Matt Luongo, who framed the product around the scale of unused corporate bitcoin, saying, “Over a million Bitcoin sits on corporate balance sheets today, and almost none of it is working,” and concluding, “Mezo Prime changes that. Segregated custody through Anchorage Digital Bank, no rehypothecation, real yield from protocol activity.”

Anchorage Digital’s CEO Nathan McCauley is quoted positioning Mezo Prime as combining custody and yield, saying, “Institutions want to do more with their Bitcoin, but not at the expense of security and control,” and adding, “Mezo Prime delivers both secure, segregated custody and direct access to on-chain yield in one platform.”

CoinDesk’s account complements these statements by describing the product as “introducing segregated vaults, or Enclaves,” and it notes that the product is “backed by 250 BTC ($19.4 million) in funding from Bullish (BLSH).”

FinanceFeeds also ties the product to Anchorage’s qualified custody by stating that Mezo Prime extends an earlier relationship into “Anchorage Digital Bank’s qualified custody.”

The sources also emphasize that Bullish is not only a backer but a “core launch customer,” with Bullish investing “250 BTC” and deploying part of its corporate Bitcoin treasury “while keeping the assets within its existing custody and compliance perimeter.”

The sources situate Mezo Prime within a timeline of Mezo’s protocol and token milestones, plus earlier Anchorage integration and subsequent listings.

“Mezo unveils institutional bitcoin yield vaults as demand grows to put idle BTC to work A new product from Mezo, backed by Anchorage Digital and seeded by Bullish, highlights a broader shift as institutions seek yield on bitcoin without sacrificing custody or control”

CoinDesk

FinanceFeeds says “The protocol’s mainnet went live in May 2025,” that the “MEZO token generation event was completed on 1 April 2026,” and that “on 21 April 2026 MEZO and MUSD listed on Bullish Exchange for institutional and retail trading.”

CoinDesk

It also describes an earlier Anchorage partnership, stating that “Mezo’s earlier Anchorage Digital partnership in November 2025 enabled BTC-backed borrowing through Anchorage’s Porto self-custody wallet at a 1% fixed rate,” and it says Mezo Prime “extends that relationship into Anchorage Digital Bank’s qualified custody.”

FinanceFeeds adds that Mezo’s wider product stack includes “MUSD, a 100% Bitcoin-backed stablecoin issued against overcollateralised CDPs,” “veBTC, the yield-bearing Bitcoin position backed by protocol fees,” and “a native DEX for swaps and liquidity.”

It also provides performance metrics, stating that “According to Mezo, the protocol has processed over US$550 million in lifetime MUSD volume and issued more than 2,000 loans, with collateralisation exceeding 168%.”

CoinDesk notes that “For now, institutional adoption of these products remains early and yields are relatively low compared with other crypto assets,” while still describing the effort as part of a shift toward treating bitcoin as “a productive financial asset.”

The sources do not provide a specific forecast, but they do lay out the operational next steps: Mezo Prime is “available now to Anchorage Digital Bank clients” and is “delivered directly through the Anchorage Digital platform.”