Spend Crypto

Spend Crypto from any wallet or exchange at over 5000 brands that accept cryptocurrency payments. Pay with Bitcoin (BTC), Ethereum (ETH), Tether (USDT), USDC, Dogecoin (DOGE), or Litecoin (LTC) on networks such as Avalanche, Polygon, Solana, Tron, Base, Binance Chain, World Chain, and Arbitrum.

Buy products with Crypto like cash — discover the differences between various blockchain networks and learn which products you can purchase with cryptocurrency.

Spend Crypto direct from your wallet or exchange buy gift cards, mobile topups, eSIMs, flights or book your hotel.

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Understanding Coins Tokens & Networks

Tokens

A token like USDC is a digital asset that represents value and can be transferred on different blockchain networks.

It runs on a smart contract, which is a self-executing program on the blockchain that keeps it secure, transparent, and follows set rules.

Coins

A coin like ETH is a digital asset that operates on its own native blockchain and is used as a medium of exchange or store of value.

It is secured by the blockchain's consensus mechanism, such as Proof of Work or Proof of Stake, ensuring transparency and decentralized control.

Networks (blockchains)

A network like Arbitrum is a blockchain layer that facilitates transactions and smart contracts, improving speed and reducing costs.

Blockchains are built in layers to improve scalability, efficiency, and cost-effectiveness.

Layer 1 blockchains

Like Ethereum or Bitcoin is the base network that handles transactions and security directly.

Layer 2 blockchains

Like Arbitrum or Lightning Network is built on top of Layer 1 to process transactions faster and cheaper while still relying on its security.

Token

What is a stablecoin?

Stablecoins are a type of cryptocurrency whose value is pegged to another asset, such as a fiat currency or gold, to maintain a stable price.price.

Cryptorefills supports the most popular stablecoins as USDT, USDC, DAI, EUROC, PYUSD, FDUSD, USDC.e and USDT.e.

Difference in popular stablecoins

Stablecoins are pegged to fiat currencies, but differ in issuers, collateral backing (fiat, crypto, or algorithmic), and blockchain networks, or wrapped versions on non-native blockchains.

Stablecoins supported by Cryptorefills

USDT: USDT (Tether) is a fiat-backed stablecoin pegged to the US dollar, issued by Tether Limited and primarily backed by reserves like cash and equivalents.
USDT.e: USDT.e is a wrapped version of USDT issued on a non-native blockchain, typically representing USDT bridged from its original network (e.g., Ethereum) to another chain like Avalanche or Arbitrum, and is not issued directly by Tether but by third-party bridge operators.
DAI: DAI is a decentralized, crypto-collateralized stablecoin pegged to the US dollar, issued by MakerDAO and backed by overcollateralized assets like ETH, USDC, and other cryptocurrencies through smart contracts. DAI is a decentralized, crypto-collateralized stablecoin pegged
USDC: USDC (USD Coin) is a fiat-backed stablecoin pegged to the US dollar, issued by Circle and primarily backed by reserves like cash and short-term US government bonds.
USDC.e: USDC.e is a wrapped version of USDC issued on a non-native blockchain, typically representing USDC bridged from its original network (e.g., Ethereum) to another chain like Avalanche or Arbitrum, and is not issued directly by Circle but by third-party bridge operators.
EUROC: EUROC (Euro Coin) is a fiat-backed stablecoin pegged to the euro, issued by Circle and primarily backed by reserves like cash and short-term European government bonds.
PYUSD: PYUSD (PayPal USD) is a fiat-backed stablecoin pegged to the US dollar, issued by PayPal and primarily backed by reserves like cash and short-term US government bonds.
FDUSD: FDUSD (First Digital USD) is a fiat-backed stablecoin pegged to the US dollar, issued by First Digital Labs and primarily backed by reserves like cash and cash-equivalent assets.

Native digital currencies fueling the blockchain ecosystem

Coin

What is a Coin?

Native digital currencies

A coin, like Bitcoin (BTC), Litecoin (LTC) and Dogecoin (DOGE), is a digital asset that runs on its own blockchain and is primarily used for transactions, payments, or as a store of value. Unlike tokens, coins are native to their respective networks and are secured by consensus mechanisms like Proof of Work or Proof of Stake.

Fueling the blockchain ecosystem

A coin like Ethereum (ETH) not only serves as a currency but also plays a key role in powering its blockchain. On networks like Ethereum, ETH is required to pay for gas fees, which are transaction costs needed to execute smart contracts, including stablecoin transfers and other decentralized applications.

Cryptorefills accepted Coins

At Cryptorefills, we accept Bitcoin (BTC), Dogecoin (DOGE), and Litecoin (LTC) for payments. However, when it comes to fueling blockchain transactions, we only support Ethereum (ETH) and Worldcoin (WLD).Worldcoin (WLD).

Not accepted Coins

We do not accept coins like Avalanche (AVAX), Tron (TRX) or Solana (SOL), even though these are required to cover gas fees when transferring stablecoins on their respective blockchains from your wallet or exchange.

Network (blockchain)

What is a Network (Blockchain)?

Blockchain evolution of Smart Contracts

Blockchains like Bitcoin are designed for secure transactions, while networks like Ethereum enable smart contract deployment, allowing decentralized applications (dApps) and complex financial operations.

EVM blockchains

Ethereum Virtual Machine (EVM) blockchains, including Ethereum, Arbitrum, Avalanche, and others, share compatibility with Ethereum’s smart contract ecosystem, enabling seamless deployment of decentralized applications across multiple chains.

How blockchains validate transactions?

Proof of Work: Used by Bitcoin and Ethereum (before its upgrade), relying on miners solving cryptographic puzzles to secure the network.
Proof of Stake: Used by Ethereum post-Merge, relying on validators staking assets to confirm transactions.
Proof of History: Used by Solana, creating a cryptographic timestamp to optimize validation speed.

Blockchain performance, speed and transaction costs

Ethereum prioritizes security and decentralization but has higher costs. Layer 2 Networks like Arbitrum improve scalability. Solana and Avalanche offer high-speed transactions with lower fees, while Tron remains a cost-effective option for payments.

Network (Blockchain) solutions supported by Cryptorefills

Ethereum: A decentralized blockchain enabling smart contracts, powering dApps, and secured by Proof of Stake. Ethereum prioritizes security and decentralization but has relative high transaction costs.
Polygon: A popular Layer-2/sidechain solution for Ethereum that provides faster and cheaper transactions. Polygon uses sidechains to process off-chain transactions before finalizing on Ethereum for security.
Arbitrum: An Ethereum Layer-2 solution that employs optimistic rollups. It offers low-cost, high-throughput transactions while inheriting the security of Ethereum.
Avalanche: A highly scalable, low-latency blockchain platform that supports smart contracts. Avalanche achieves sub-second finality and features customizable subnets for specialized use cases.
Optimism: An Ethereum Layer-2 protocol leveraging optimistic rollups to reduce transaction costs and increase throughput, all while maintaining the security of the Ethereum mainnet.
Binance Smart Chain: A blockchain developed by Binance with low transaction fees, EVM compatibility, and high throughput. It supports a vast ecosystem of decentralized applications and tokens.
OKX: OKX Chain (OKC) is an EVM-compatible blockchain developed by OKX, offering low fees, high performance, and cross-chain interoperability within the OKX ecosystem.
Base: A Coinbase-incubated Ethereum Layer-2 network built using Optimism’s technology. Base aims to offer secure, low-cost, and developer-friendly solutions for on-chain applications.
Tron: A high-performance blockchain designed for fast and low-cost transactions. Tron is a Layer-1 network with high throughput and low fees, making it ideal for dApps, stablecoins, and DeFi.
Solana: A high-performance Layer-1 blockchain designed for ultra-fast and low-cost transactions. Solana uses a unique Proof-of-History (PoH) mechanism combined with Proof-of-Stake (PoS) to achieve high scalability, processing thousands of transactions per second.