I Published an MCP Server for Swiss Public Data. 68 Tools, 20 Modules, 867 Tests.

I shipped mcp-swiss - a Model Context Protocol server that gives any AI assistant direct access to Swiss open data. No API keys. No registration. Just npx mcp-swiss and you're connected to trains, weather, companies, parliament, earthquakes, and 15 other domains. It started at 37 tools across 9 modules. A few sprints later, it's 68 tools across 20 modules, backed by 867 unit tests. This is the story of building it, scaling it, and what I'd do differently. Wait - What's MCP? Model Context Protocol is an open standard that lets AI assistants call external tools.