Free MCP tools

Everything here is free, needs no account and works with any MCP client.

Popular guides

• Database MCP servers: Postgres, MySQL, SQLite, MongoDB and SQL Server
  Open-source MCP servers that let Claude, Cursor or VS Code query your database, grouped by database engine, with stars and last-update dates from GitHub.
• GitHub and Git MCP servers: the official GitHub server and alternatives
  Which MCP server to use for GitHub issues, pull requests and local Git repositories, based on the servers in the Socketlist directory.
• Browser automation MCP servers: Chrome DevTools, Firefox and stealth browsers
  MCP servers that let an AI assistant open pages, click, read the DOM and debug in a real browser, grouped by approach.
• Web search MCP servers: give Claude and Cursor live search
  MCP servers for web search, page fetching and crawling, from API-based search to self-hosted SearXNG, with data from GitHub.
• Filesystem MCP servers: let an AI assistant read and edit local files
  MCP servers for local files and NAS storage, and how to limit access to the folders you choose.
• The official MCP reference servers explained
  What each reference server in the modelcontextprotocol/servers repository does, and when to use it.
• MCP config file locations and formats: Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Cline
  Where each AI client stores its MCP configuration, which JSON key it uses (mcpServers or servers) and how remote URLs are written, side by side.
• How to add MCP servers to Windsurf (mcp_config.json)
  Configure local and remote MCP servers for Windsurf’s Cascade agent in mcp_config.json: file location, serverUrl for remote servers and turning tools off.

How to use the output

• If the file already lists servers, merge the new entries into mcpServers (servers in VS Code) instead of replacing the file.
• Restart or reload the client after saving.
• Read the security checklist before you run any server.