What is checker-mcp?
checker-mcp is a MCP server by OksigeniaSL that local-first domain security and privacy checker: live SPF, DMARC, DKIM, DNSSEC, TLS, CAA and security header checks, scored with remediation advice. It is listed under Security and has no public popularity data yet.
| Type | Mcp server |
|---|---|
| Author | OksigeniaSL |
| Repository | OksigeniaSL/checker-mcp |
| Popularity | no public popularity data yet |
| Category | Security |
| Security | Low risk (96/100) |
| Rank | #4,304 of 4,418 MCP servers; #251 in Security |
| License | GPL-3.0 |
| Last commit | 2026-07-22 |
| Runs | Locally |
| Language | TypeScript |
Is checker-mcp safe to install?
checker-mcp scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 5 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Runs on your machine only | Pass |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install checker-mcp?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/OksigeniaSL/checker-mcp
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add checker-mcp -- <command from README> claude mcp add --transport http checker-mcp <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs checker-mcp for you:
Add the "checker-mcp" MCP server from https://github.com/OksigeniaSL/checker-mcp to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.