Uniwire (Cryptochill)

Uniwire, formerly known as CryptoChill, is a highly customizable cryptocurrency and Lightning Network payment gateway targeting businesses that need institutional-grade infrastructure for accepting and managing digital asset payments at scale. Founded in 2018 and incorporated as Uniwire AG in Zug, Switzerland, the platform underwent a strategic rebrand from CryptoChill to Uniwire in April 2025 to reflect its expanded vision and global ambitions, while keeping all products, services, and integrations entirely intact. The company also maintains offices in St. Vincent and the Grenadines, with El Salvador operations in development.

From CryptoChill to Uniwire

CryptoChill built its name as a reliable, enterprise-focused crypto payment processor handling an average daily volume of approximately $5 million. By early 2025, the company had outgrown its original identity: a February 2025 white-label program launch and growing adoption across diverse verticals made clear the platform was no longer a niche tool but a full-stack payments infrastructure provider. The April 21, 2025 rebrand to Uniwire brought a new domain and corporate identity without disrupting existing integrations — all legacy cryptochill.com URLs redirect automatically to their Uniwire equivalents.

Solana Integration

Solana support arrived in July 2024, when CryptoChill expanded its payment gateway to include SOL transactions. The announcement cited Solana's high throughput, sub-second finality, and transaction fees measured in fractions of a cent as the primary reasons for the integration — characteristics that make it particularly well-suited for high-frequency merchant payments where Ethereum gas costs would be prohibitive.

Uniwire currently supports the following assets on Solana: native SOL, USDT (Tether), USDC (USD Coin), Wrapped Solana (WSOL), Bonk, and Official Trump tokens. Merchants requiring additional SPL tokens can request support on a per-client basis. By integrating at the native Solana layer rather than relying on bridges or wrapped representations, Uniwire gives businesses direct exposure to Solana's settlement speed without added custody risk from cross-chain intermediaries.

How the Platform Works

Uniwire operates a shared-custody model: client funds are managed through MPC (Multi-Party Computation) wallets built in-house, distributing key shares across multiple parties so that no single point of failure can compromise funds. This MPC wallet infrastructure was audited by Kudelski Security, a well-regarded firm with deep experience in cryptographic implementations. The platform also implements deep chain analysis for AML compliance and risk monitoring, including address risk scoring for outgoing transactions and configurable payout policies.

The architecture is explicitly modular. Liquidity providers, on-ramps, and off-ramps can be swapped independently without rearchitecting the integration — a design decision that insulates clients from provider-level disruptions and allows the platform to adapt to evolving regulatory requirements across jurisdictions.

Businesses can integrate Uniwire through four primary channels:

• REST API: A full-featured interface designed for custom workflows and complex backend integrations. The API supports the full payment lifecycle — address generation, deposit monitoring, conversion triggering, payout initiation, and webhook notifications.
• JavaScript SDK: A client-side library focused on reducing backend complexity for deposit implementations, particularly suited for frontend-heavy applications.
• WooCommerce plugin: A WordPress plugin enabling e-commerce merchants to add crypto checkout to existing WooCommerce stores with minimal configuration.
• Third-party cashier services: Pre-built connections to popular iGaming and fintech cashier platforms, allowing operators in those verticals to plug into Uniwire without custom development.

A dashboard interface gives non-technical operators manual controls over conversions, payouts, wallet management, and compliance settings alongside automated rule-based workflows.

Supported Networks and Assets

Beyond Solana, Uniwire supports a broad range of blockchains and asset types. Layer-1 native assets include Bitcoin, Ethereum, Litecoin, Dogecoin, Ripple (XRP), and Tron (TRX). Token standards supported span ERC-20 on Ethereum, BEP-20 on Binance Smart Chain, and tokens on Polygon, Arbitrum, Base, Celo, and the Liquid Network sidechain for Bitcoin. Bitcoin Lightning Network support is a core offering and was central to the platform's original identity under the CryptoChill name.

The multi-chain breadth makes Uniwire one of the more comprehensive options in the enterprise gateway segment, covering the stablecoin rails (USDT and USDC across multiple chains) most businesses actually demand alongside the major L1 settlement assets.

White-Label and Enterprise Features

In February 2025, Uniwire launched a fully customizable white-label program that allows payment providers, neo-banks, and fintechs to deploy a branded gateway powered by Uniwire's backend. The white-label offering includes branding customization, custom domain support, and access to the full feature set including MPC custody, AML tooling, and multi-chain support.

Other enterprise-grade features include:

• 99.997% uptime SLA backed by proprietary in-house infrastructure rather than shared third-party components
• 24/7 live technical support with a stated emphasis on real-time response rather than ticket queues
• Automatic and manual conversion controls allowing businesses to auto-convert volatile assets to stablecoins at deposit or defer conversion to a chosen window
• Address Book and Payout Policies for outgoing transaction management with configurable risk thresholds

Target verticals include online gaming, iGaming, forex brokerage, prop trading, e-commerce, Web3 applications, escrow platforms, real estate settlement, and luxury retail.

Open-Source Tooling

The CryptoChill GitHub organization at github.com/cryptochill hosts several public repositories, including Bitcoin payment integration examples built on the CryptoChill SDK and API, the uselightning.network website source, and a Rust implementation of multi-party ECDSA threshold signing forked from ZenGo-X. These repositories reflect the team's in-house cryptographic work underpinning the MPC wallet infrastructure, though the core gateway product itself is not open source.

Team and Compliance

Uniwire AG is headquartered in Zug, Switzerland, a jurisdiction with a well-established crypto regulatory framework. The company takes a compliance-first approach, integrating chain analysis at the infrastructure level rather than as a bolt-on service. The Kudelski Security audit of the MPC wallet system provides independent verification of the custody model's cryptographic soundness. Individual team members are not publicly disclosed, consistent with the company's generally low-profile public presence.

Solana Compass Context

Solana's inclusion in the Uniwire gateway positions the network as a credible payment rail for businesses that previously defaulted to Ethereum or Bitcoin for crypto checkout. For merchants, SOL and Solana-native stablecoins like USDC offer a cost structure — sub-cent fees, sub-second finality — that makes micro-payments and high-frequency settlement economically viable. Uniwire's enterprise focus and MPC custody model means businesses can accept Solana payments without managing key infrastructure themselves, lowering the operational barrier to adoption for companies outside the crypto-native space.