Comparison

How Voltaire’s request builders compare to other Ethereum libraries.

vs Raw EIP-1193

Feature	Raw EIP-1193	Voltaire Request Builders
Method calls	`request({ method, params })`	Request builder + `request()`
Parameters	Plain strings/objects	Branded primitive types
Type safety	None (manual typing)	Full compile-time checking
Errors	Throws exceptions	Throws exceptions
Autocompletion	No	Yes

Example Comparison

// Raw EIP-1193 - no type safety
const balance = await provider.request({
  method: 'eth_getBalance',
  params: ['0x...', 'latest']  // Typos not caught!
});

// Voltaire - fully typed
import * as Rpc from '@tevm/voltaire/jsonrpc';
import * as Address from '@tevm/voltaire/Address';

const balance = await provider.request(
  Rpc.Eth.GetBalanceRequest(Address('0x...'), 'latest')
);

vs ethers.js

Feature	ethers.js	Voltaire
Method style	Abstracted (`getBalance`)	Direct JSON-RPC (`eth_getBalance`)
Types	Runtime classes	Branded primitives (zero overhead)
Type safety	Good	Excellent (branded types)
Tree-shaking	Limited	Full

Voltaire provides lower-level JSON-RPC access with maximum type safety and tree-shaking.

vs viem

Feature	viem	Voltaire
API style	Actions	Request builders
Type system	Narrow types	Branded primitives
Tree-shaking	✅ Yes	✅ Yes
WASM	❌ No	✅ Yes (optional)
Multi-language	❌ No	✅ Yes (TS/Zig/Rust/C)

Both provide excellent type safety. Voltaire adds multi-language support and optional WASM acceleration.

When to Use Voltaire

Type safety - Branded primitives catch errors at compile time
Tree-shaking - Import only what you need
Multi-language - Building for TypeScript + Zig/Rust/C
WASM acceleration - Performance-critical crypto operations
Direct JSON-RPC - Work directly with JSON-RPC spec

Getting Started - Installation and setup
Method API - Request builders

Usage Patterns Contract Pattern

Overview

Getting Started

Core Concepts

Skills

JSONRPCProvider

Contract

Primitives

Cryptography

EVM

Utils

Guides

Examples

Swift

Zig

Developer Documentation

Generated API (TypeDoc)

Comparison

Comparison

vs Raw EIP-1193

Example Comparison

vs ethers.js

vs viem

When to Use Voltaire

​Comparison

​vs Raw EIP-1193

​Example Comparison

​vs ethers.js

​vs viem

​When to Use Voltaire

​Related

Comparison

vs Raw EIP-1193

Example Comparison

vs ethers.js

vs viem

When to Use Voltaire

Related