PyPI JSON API

The PyPI JSON API provides metadata about individual Python packages hosted on the Python Package Index. It returns project-level information including the latest version, all available releases, download URLs, and hash digests for MD5, SHA256, and BLAKE2b-256. Developers can query endpoints like /pypi/{project}/json for the latest release metadata or /pypi/{project}/{version}/json for a specific version. Responses are cached by CDN and support ETag headers for conditional requests.