A comprehensive MCP server for checking package versions and rating package quality across Python (PyPI), JavaScript/TypeScript (npm), Dart (pub.dev), and Rust (crates.io) ecosystems.
An MCP server that provides cross-validated npm dependency fitness verdicts, including deprecation, malicious detection, and safe migration target inference.
MCP server that acts as a temporal verification firewall, checking structured assumptions or diffs against immutable version receipts to return allow/block/abstain with cited evidence.