Discussion on Hacker News explores real-world usage of MCP (Model Context Protocol) in production environments. While MCP gained early attention, actual production adoption remains limited. One contributor describes building an agent runtime at cadenya.com, noting MCP servers have been the hardest part to create adapters for due to numerous permutations in the two-year-old spec.

A well-regarded example is the nixos mcp, which bundles all nix resources into one endpoint, offering better efficiency than web search. Another useful implementation is a filesystem MCP preferred over direct CLI access, particularly for restricting model capabilities in generic Docker environments.

One user hooked up Claude Code to Jira and Figma, finding natural language terminal interaction more convenient than direct API access, though still limited. They noted it makes things "a tiny bit easier than interfacing directly via api."

Another developer created a planning applications scraper for UK local councils with Claude's help, then built an MCP interface for debugging insights. The system provided immediate production-grade insights during debugging without explicit prompting.