Quartz

Quartz was a Solana-based DeFi payments protocol built around a single idea: let crypto holders spend the value of their assets without ever having to sell them. Operating under the tagline "Spend without selling," the project issued a self-custody debit card that settled transactions through on-chain collateral loans rather than liquidating the user's underlying positions. The official domain, quartzpay.io, is no longer active; the project rebranded to Pyra in late 2024 and subsequently shut down in June 2026 following a catastrophic exploit at Drift Protocol, which formed the backbone of its DeFi infrastructure.

How It Worked

The core mechanism distinguished Quartz from conventional crypto debit cards. Most crypto spending products require users to convert holdings into fiat or stablecoins before any card transaction can settle. Quartz bypassed that step by treating user deposits as collateral inside a Solana DeFi position. When a cardholder made a purchase, the protocol automatically opened or extended a loan against that collateral — drawing the necessary liquidity and routing it to settle the payment — while the underlying assets remained in the user's position, continuing to earn yield.

This approach preserved the user's exposure to price appreciation and avoided triggering a taxable disposal event at point of sale. Because the loan was collateral-backed and managed on-chain, Quartz also incorporated an automated protection mechanism: if collateral value fell toward the minimum threshold required to support the outstanding loan, the protocol would repay the loan automatically using collateral at the prevailing market rate, avoiding the standard liquidation penalty typical on most lending protocols.

The system supported both a physical debit card for point-of-sale spending and bank transfer functionality, giving users two off-ramp channels tied to their on-chain positions.

Rebrand to Pyra

Quartz later rebranded as Pyra, repositioning itself as an "asset-based neobank" under the tagline "Hold, Earn, Spend." The product description remained consistent with the original Quartz model: users deposited crypto, earned yield on those deposits through Solana DeFi strategies, and accessed a secured line of credit through the Pyra card without selling their holdings. Pyra published apps on both the Apple App Store and Google Play Store and maintained a self-custody architecture throughout.

The rebrand did not change the fundamental infrastructure dependency on Drift Protocol, which handled the DeFi trading and yield-generation layer underpinning user positions.

Shutdown Following the Drift Exploit

On April 1, 2026, Drift Protocol suffered a major security breach in which approximately $285 million was drained from the protocol, freezing liquidity across roughly 20 exposed projects within the Solana DeFi ecosystem.

Pyra (formerly Quartz) was among the hardest hit. The platform initially attempted to identify a path forward, including exploring pivots to alternative lending protocols. After several months of evaluation, the team concluded that the Drift exploit had caused "unrecoverable impact" on its core business operations, liquidity, and user confidence.

On June 15, 2026, Pyra announced it would wind down completely. The immediate effects were:

• All existing Pyra cards were cancelled.
• New user registration was suspended.
• The mobile application began being phased out.

A web portal at app.pyra.fi was launched to allow users to withdraw funds and export private keys. The withdrawal deadline was set at September 15, 2026. The team also committed to distributing any Drift recovery tokens to affected users once those became available from the Drift team.

Context Within Solana DeFi

Quartz and its successor Pyra operated at the intersection of DeFi-native yield strategies and consumer spending infrastructure — a design space that carried meaningful third-party protocol dependency risk. The product's value proposition was genuine: by routing card spending through on-chain loans rather than liquidations, it offered a meaningfully different user experience from conventional crypto cards. The concentration of core infrastructure in a single protocol, however, left the platform exposed when Drift suffered its April 2026 breach.

The shutdown of Pyra followed a pattern seen elsewhere in the Solana ecosystem in the wake of the same exploit. Yield protocol Carrot cited similar losses in announcing its own closure at roughly the same time.

Status

Quartz / Pyra is no longer operational. The quartzpay.io domain is expired and parked. The pyra.fi domain displays a shutdown notice. Users with outstanding balances were directed to the withdrawal portal before the September 15, 2026 deadline. The project should be treated as discontinued.