Designed for the Internet of Tomorrow

What works

Your existing Ethereum development workflow transfers directly to Radius:

What's different from other EVMs

Radius optimizes for payments. This means deliberate differences from standard Ethereum behavior:

Predictable fees (not market-dependent)

Traditional blockchain fees fluctuate with network demand. Radius charges a fixed 0.0001 USD per transaction—predictable, auditable, and calculable.

Stablecoin Fees

Faster Finality

Key Differences from Ethereum

Practical Implications

// Standard ERC-20 interactions
IERC20(token).transfer(recipient, amount);
 
// Storage operations
mapping(address => uint256) balances;
balances[msg.sender] = 100;
 
// Events
emit Transfer(from, to, amount);

// Don't do this (always returns 0)
require(address(this).balance > 0);
 
// Do this instead
require(IERC20(feeToken).balanceOf(address(this)) > 0);

How Radius ensures data integrity

Radius uses operator trust + replication rather than decentralized consensus:

• 3-node clusters provide fault tolerance (operator nodes replicate data)
• Cryptographic signing prevents tampering
• Deterministic execution ensures consistency

This trade-off (known operators for instant finality) is appropriate for payment infrastructure.

Future-Proofing

Real-time autonomous payments

AI agents need to pay for services (APIs, data, compute) instantly. Traditional payment processors require 30+ day settlement. Radius provides:

• Instant settlement — Agent gets confirmation in milliseconds
• Sub-cent costs — Enables per-request pricing
• Stablecoin support — Agents don't need volatile assets

Micropayments

When transactions cost $0.0001, new business models become viable:

• Per-request API billing: Charge per call, not monthly
• Content micropayments: Pay per article, not subscription
• Streaming payments: Pay by the second for compute

Traditional payment processors (Stripe, PayPal) can't economically support these patterns. Radius can.

EIP Support (Prague)

Radius tracks the Prague hardfork via Revm 33.1.0:

Precompiles

All standard precompiles plus Radius extensions:

Network Configuration

Network Name: Radius Testnet
RPC URL: {TESTNET_RPC_URL}
Chain ID: {TESTNET_CHAIN_ID}
Currency Symbol: {NATIVE_TOKEN}

Next Steps

• Divergence from Ethereum — Deep dive into block handling, coinbase, and other technical differences
• Network Configuration — RPC endpoints, chain ID, and wallet setup
• Fees — How stablecoin fees and the Turnstile work