Anchor is a framework for writing and testing Solana programs, aka smart contracts on Solana. It contains several functionalities such as:
– Rust crates and eDSL for writing Solana programs
– Interface description language (IDL) specification
– Typescript package for generating clients from IDL
– CLI and workspace management
Developers have a similar experience developing in the Anchor framework on Solana as they would using Ethereum’s Truffle.