A side-by-side look at the Kastell and Stillos Ratings MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Kastell for security work as a local process; choose Stillos Ratings MCP for security. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Kastell when
You need dedicated capabilities in the Security domain.
No tool names declared yet. Check the project README from the listing page.
Stillos Ratings MCP tools 3
check_mcp_serverGrade, rank, five scored dimensions, rail position, publisher/fleet concentration, and any dated finding for one host
list_tool_surface_findingsEvery operator currently carrying a dated tool-surface finding
compare_mcp_serversUp to 10 candidates side by side
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
No confirmed install command for Stillos Ratings MCP yet — follow the setup steps linked from its listing page rather than a guessed package name.
Frequently asked questions
Kastell is categorized under Security and uses a local stdio subprocess. Stillos Ratings MCP belongs to Security and uses an install path we have not confirmed yet. Pick Kastell for security work and Stillos Ratings MCP for security.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client. Stillos Ratings MCP has no confirmed install command yet — follow its own setup instructions.
Kastell is listed as free. Auth: no auth required. Stillos Ratings MCP is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add kastelldev-kastell and stillos-ratings-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Kastell has a quality signal of 61/100 (Good) with 4 views, 0 installs and 60 GitHub stars. Stillos Ratings MCP has 47/100 (Fair) with 0 views, 0 installs and 0 GitHub stars.