crytic/evm-opcodes resource

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1358 stars · 217 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A consolidated reference of Ethereum Virtual Machine (EVM) opcodes, including their hex codes, names, descriptions, and gas costs. It aggregates information from the yellow paper, client implementations, and security tooling sources.

Use cases

• look up what an EVM opcode does
• find gas costs for Ethereum VM instructions
• reference table of EVM opcodes while writing Solidity or bytecode
• check which EIP introduced an opcode like SHL or SHR
• learn EVM instruction set for smart contract auditing

When to choose

• you need a quick, consolidated lookup of EVM opcodes and gas costs
• you are auditing or reverse-engineering EVM bytecode
• you want a maintained reference sourced from official Ethereum documents and clients

When to avoid

• you need programmatic access to opcode metadata in your code rather than documentation
• you need exhaustive, always-current gas costs since the gas data is a work in progress
• you need a full EVM implementation or emulator

Facets

learning-resource · maturity stable

documentation developer-tools blockchain developer-tools documentation ethereum evm opcodes reference gas-costs smart-contracts web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="crytic/evm-opcodes")