Pacman MCP Server is a Model Context Protocol server that provides package index querying capabilities across major registries. It enables LLMs to search and retrieve information from package repositories such as PyPI, npm, crates.io, Docker Hub, and the Terraform Registry. The server exposes a set of tools designed for seamless retrieval of package lists and metadata: search_package to query an index with a limit; package_info to fetch detailed information for a given package and optional version; search_docker_image and docker_image_info to discover and inspect Docker images; and terraform_module_latest_version to obtain the latest version of a Terraform module. It uses provider-specific prompts (search_pypi, pypi_info, search_npm, npm_info, search_crates, crates_info, search_docker, docker_info, search_terraform, terraform_info, terraform_latest_version) to standardize inputs. The README outlines installation options (uv, pip, Docker), how to configure for Claude.app and VS Code, and development/testing guidelines. The project comprises a multi-provider architecture with dedicated modules for each registry, a caching utility, data models, and a server entry point. This setup enables LLMs to discover, compare, and fetch registry data efficiently during conversations and code-generation tasks.