Registries
Registries
Six registries, one class shape. Pick one to see its endpoints, its name rules and the traps.
Every adapter answers the same four calls: fetchPackage, fetchVersions, fetchDependencies and fetchMaintainers, plus a urls() builder for display links. What changes is the API it reads, what the registry calls latest, which version statuses it can report, and what ends up in metadata. The pages are short on purpose; the interesting part of each one is the gotcha list.
crates.io
Crate, versions, dependencies and owners across four endpoints.
yanked as a status, docs.rs for docs.PyPI
JSON API for metadata, Simple API for versions. Names normalized per PEP 503, extras become scopes.
RubyGems
Gem, versions, dependencies of each version and owners.
yanked as a status, rubydoc for docs.