Deterministic SEO audits as MCP tools: 36-rule site audit, keywords, rank, CWV reports.
Connect Runs on your machine
claude mcp add lumen -e LUMEN_PSI_KEY=<LUMEN_PSI_KEY> -e LUMEN_CRUX_KEY=<LUMEN_CRUX_KEY> -e LUMEN_OPR_KEY=<LUMEN_OPR_KEY> -- npx -y @lumen-seo/[email protected]{
"mcpServers": {
"lumen": {
"command": "npx",
"args": [
"-y",
"@lumen-seo/[email protected]"
],
"env": {
"LUMEN_PSI_KEY": "<LUMEN_PSI_KEY>",
"LUMEN_CRUX_KEY": "<LUMEN_CRUX_KEY>",
"LUMEN_OPR_KEY": "<LUMEN_OPR_KEY>"
}
}
}
}{
"mcpServers": {
"lumen": {
"command": "npx",
"args": [
"-y",
"@lumen-seo/[email protected]"
],
"env": {
"LUMEN_PSI_KEY": "<LUMEN_PSI_KEY>",
"LUMEN_CRUX_KEY": "<LUMEN_CRUX_KEY>",
"LUMEN_OPR_KEY": "<LUMEN_OPR_KEY>"
}
}
}
}{
"servers": {
"lumen": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@lumen-seo/[email protected]"
],
"env": {
"LUMEN_PSI_KEY": "<LUMEN_PSI_KEY>",
"LUMEN_CRUX_KEY": "<LUMEN_CRUX_KEY>",
"LUMEN_OPR_KEY": "<LUMEN_OPR_KEY>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
LUMEN_PSI_KEYOptional, secret | Google PageSpeed Insights API key — enables the CWV lab leg of page reports. Optional; without it that leg reports not-configured. |
LUMEN_CRUX_KEYOptional, secret | Chrome UX Report API key — enables field CWV data. Optional; without it that leg reports not-configured. |
LUMEN_OPR_KEYOptional, secret | Open PageRank API key — enables the OPR authority signal. Optional; without it that signal reports not-configured. |
Details
| Package | @lumen-seo/[email protected] (NPM, stdio) |
| First published | 1 Oct 2026 |
| Last updated | 1 Oct 2026 |
| Registry name | io.github.nitishagar/lumen |
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