I Built 7 Free MCP Servers for Claude Code in One Week

MCP (Model Context Protocol) is how Claude and other AI agents connect to external tools. I built 7 open-source MCP servers this week. All free, no API keys needed. The Servers Server What It Does Install mcp-web-tools Web scraping, search, monitoring npx @rog0x/mcp-web-tools mcp-seo-tools SEO analysis (meta, links, speed) npx @rog0x/mcp-seo-tools mcp-github-tools GitHub repo analytics, PRs, issues npx @rog0x/mcp-github-tools mcp-json-tools JSON validate, diff, CSV/YAML npx @rog0x/mcp-json-tools mcp-markdown-tools TOC, lint, format, stats npx @rog0x/mcp-markdown-tools mcp-regex-tools Regex test, explain, transform npx @rog0x/mcp-regex-tools mcp-api-tools HTTP requests, JWT, headers npx @rog0x/mcp-api-tools Key Learnings 1. MCP servers are simple. A basic one is ~50 lines of TypeScript. Register tools, handle calls, return results. 2. No API keys = adoption. Every server uses fetch() and cheerio. Anyone can install instantly. 3. The market is early. 11,000+ servers registered, less than