The crates.io package index

The crates.io package index contains the necessary metadata for cargo to download crates and resolve their dependencies.

The package index is available at:

• https://index.crates.io/ as an HTTP API (sparse protocol)
• https://github.com/rust-lang/crates.io-index as a git repository

The index format is described in detail in The Cargo Book.

The crates.io index is maintained by the crates.io team.