Solana ATM

TLDR

Solana ATM is an open-hardware project that puts a cash-to-stablecoin exchange terminal in a 3D-printable enclosure. Instead of routing through a bank or a centralized exchange, the machine operates as a peer-to-peer liquidity pool: one side holds physical cash, the other holds USDC on Solana. A user inserts cash; the on-chain side sends the equivalent in USDC to a wallet address. The project won fourth place in the Undefined Track at the Solana Cypherpunk Hackathon in December 2025, competing against 1,576 projects submitted by more than 9,000 participants globally.

Background

The project was built by Crowbrow and bithighlander, operating under the Degenerate Laboratories banner. It was registered in the United States and submitted to the Solana Cypherpunk Hackathon, a competition organized by Colosseum that ran in late 2025 and announced its winners at Breakpoint 2025 in Abu Dhabi. The overall theme of the Cypherpunk hackathon was aligned with privacy, sovereignty, and permissionless money — a fitting context for a machine designed to let anyone access stablecoins without a bank account or KYC requirement.

Mechanism

The core concept is a peer-to-peer liquidity pool bridging physical currency and on-chain stablecoins. Rather than acting as a traditional centralized ATM operator that holds float, the design envisions a model where liquidity providers (individuals willing to exchange their USDC for cash) and users (individuals who want to convert cash to USDC) are matched through the machine. The Solana ATM serves as the physical interface and settlement layer.

When a user deposits cash, the machine credits the corresponding amount of USDC — at the current exchange rate — to the user's Solana wallet address. Transactions settle on Solana, leveraging the network's sub-second finality and fees that typically run below a fraction of a cent per transaction. The stablecoin of focus is USDC on Solana, which benefits from Circle's native issuance on the network since 2021 and consistent deep liquidity across Solana DEXes.

3D-Printable Hardware Design

A distinguishing feature of the project is its emphasis on accessibility and replication. The ATM enclosure is designed to be 3D-printed, meaning anyone with access to a consumer-grade FDM printer can manufacture the physical housing. This design philosophy mirrors the cypherpunk tradition of open, replicable tools — the goal being that anyone, anywhere, can build and deploy one without needing specialized manufacturing or proprietary hardware. The "bankless terminal" framing (as reflected in the project's GitHub repository name) signals that the hardware is meant to work around the traditional banking layer entirely.

The electronics and software stack details were demonstrated in pitch and demo videos submitted to the Colosseum hackathon, though the project's public GitHub repository (Degenerate-Laboratories/bankless-terminal) is not currently accessible, and the project's website at solanastableatm.com was showing a paused deployment as of September 2026.

Solana Fit

Solana is a natural choice for a cash-to-stablecoin ATM for several reasons. First, USDC has native issuance on Solana, meaning Circle mints and burns directly on the network rather than bridging from another chain. Second, Solana's throughput — capable of processing tens of thousands of transactions per second — means the machine can settle a conversion immediately without waiting for block confirmations. Third, transaction fees on Solana are predictably low (typically $0.00025 or less per transaction), so the economics of small cash deposits are viable without large fee overhead eating into the amount exchanged.

The DeFi and stablecoins classification on Colosseum positions the Solana ATM squarely within the stablecoin payments use case that Solana has increasingly prioritized, with infrastructure like Solana Pay, Circle's USDC growth on the network, and the broader push for stablecoin-based commerce in emerging markets.

Team

The project was built by two contributors:

• Crowbrow (@Crowbrow on X) — co-founder, Degenerate Laboratories
• bithighlander (@bithighlander on X) — co-founder, Degenerate Laboratories

Both are based in the United States. The team submitted the project to the Cypherpunk hackathon in October 2025, shortly after the project's founding date.

Audits and Security

No third-party security audits have been publicly disclosed for Solana ATM. As a hackathon-stage project, the focus to date has been on demonstrating the core proof-of-concept: a physical device that successfully exchanges cash for on-chain USDC via a peer-to-peer pool. The on-chain components interact with USDC on Solana, which itself is audited infrastructure, but the custom ATM software and smart contracts specific to the liquidity pool mechanism have not been independently audited based on available public information.

Token

Solana ATM does not have its own native token. The stablecoin used for settlements is USDC on Solana (SPL token). There is no governance token or project-specific currency associated with the Solana ATM as of the information available from the Cypherpunk hackathon submission.

Current Status

The project emerged from the December 2025 hackathon with a working demonstration but has not yet announced a mainnet deployment, commercial launch, or funding round. The project website (solanastableatm.com) showed a paused deployment as of the time of writing, and the GitHub repository is not publicly accessible. The Twitter account @solanaATMstable exists but had no recent activity in the period reviewed. The project remains at an early, proof-of-concept stage following its hackathon placement.

Why It Matters

The Solana ATM addresses a genuine last-mile problem in crypto adoption: for individuals without bank accounts or access to centralized exchanges, converting physical cash to digital money is difficult and often expensive. Traditional crypto ATMs charge fees ranging from 10 to 20 percent and require phone number verification or government ID. A bankless, 3D-printable, peer-to-peer terminal that settles on Solana in under a second represents a different model — one that is permissionless to deploy and permissionless to use. Whether that model can scale beyond a proof-of-concept is the open question the project faces as it moves beyond hackathon stage.