npm package: @iflow-mcp/suganthan-mohanadasan-gsc-mcp
Description: Google Search Console MCP server for Claude — answers real SEO questions, not raw API rows
Author: Suganthan Mohanadasan
Latest version: 2.1.0

# Google Search Console MCP Server

An MCP server for Google Search Console that lets you ask Claude questions about your search data and get real answers. Not raw API rows. Actual analysis.

20 tools. OAuth or service account. Free and open source.

> **Full setup guide with screenshots:** [suganthan.com/blog/google-search-console-mcp-server/](https://suganthan.com/blog/google-search-console-mcp-server/)

## See it in action

**"How is my site doing?"**

![Site snapshot with period comparison](screenshots/snapshot.jpg)

**"What are my quick win keywords?"**

![Quick wins analysis showing positions 4-15 with opportunity scores](screenshots/quick%20wins2.jpg)

**"Which pages are cannibalising each other?"**

![Cannibalisation detection across the site](screenshots/canni.jpg)

**"What content is slowly dying?"**

![Content decay detection over three consecutive periods](screenshots/dying.jpg)

**"Which pages lost traffic and why?"**

![Traffic drop diagnosis: ranking loss vs CTR collapse vs demand decline](screenshots/lost.jpg)

**"How does my CTR compare to benchmarks?"**

![CTR vs industry benchmarks by position](screenshots/CTR.jpg)

**"How is my blog cluster performing?"**

![Topic cluster performance for a URL path pattern](screenshots/topics.jpg)

## What you can ask

```
"What are my quick win keywords?"
"Which pages lost traffic this month and why?"
"What content is decaying?"
"Which pages are cannibalising each other?"
"Check for any SEO alerts in the last 7 days"
"Give me content recommendations"
"How does my CTR compare to benchmarks?"
"How is my /blog/ cluster performing?"
"Show me US mobile traffic for the last 90 days"
"Is /blog/my-post/ indexed? If not, why?"
"Generate a full performance report and save it"
"Show me a dashboard across all my sites"
"Submit this URL for indexing: https://mysite.com/new-post/"
"Batch submit all my new blog posts for indexing"
"List my sitemaps and their status"
"Verify that claim about my homepage clicks"
```

## Quick start

### Option A: OAuth (recommended)

1. Create a Google Cloud project and enable the **Search Console API**
2. Go to **Credentials > Create Credentials > OAuth client ID**, choose **Desktop app**
3. Download the client secrets JSON
4. Add to your Claude Desktop config (`~/Library/Application Support/Claude/claude_desktop_config.json`):

```json
{
  "mcpServers": {
    "gsc": {
      "command": "node",
      "args": ["/path/to/Suganthans-GSC-MCP/dist/index.js"],
      "env": {
        "GSC_AUTH_MODE": "oauth",
        "GSC_OAUTH_SECRETS_FILE": "/path/to/client_secrets.json",
        "GSC_SITE_URL": "sc-domain:yoursite.com"
      }
    }
  }
}
```

First use opens a browser for Google sign in. Token is cached after that.

### Option B: Service Account

1. Create a Google Cloud project and enable the **Search Console API**
2. Go to **IAM & Admin > Service Accounts**, create one, download the JSON key
3. Add the service account email to your GSC property (Settings > Users and permissions > Full access)
4. Add to your Claude Desktop config:

```json
{
  "mcpServers": {
    "gsc": {
      "command": "node",
      "args": ["/path/to/Suganthans-GSC-MCP/dist/index.js"],
      "env": {
        "GSC_KEY_FILE": "/path/to/service-account.json",
        "GSC_SITE_URL": "sc-domain:yoursite.com"
      }
    }
  }
}
```

### Indexing API (optional)

To use `submit_url`, `submit_batch`, and `submit_sitemap`:

1. Enable the **Web Search Indexing API** in your [Google Cloud console](https://console.cloud.google.com/apis/library/indexing.googleapis.com)
2. Your service account (or OAuth credentials) need owner-level access in Search Console

Note: Google officially says the Indexing API is for JobPosting and BroadcastEvent schema types. In practice, it processes requests for all page types.

### Multi-site

For multiple properties, add `GSC_SITE_URLS`:

```json
"env": {
  "GSC_SITE_URL": "sc-domain:primarysite.com",
  "GSC_SITE_URLS": "sc-domain:primarysite.com,sc-domain:secondsite.com"
}
```

## All 20 tools

### Analysis

| Tool | What it answers |
|---|---|
| `site_snapshot` | How is the site doing overall? Clicks, impressions, CTR, position with period comparison |
| `quick_wins` | Keywords at positions 4-15 with high impressions, scored by opportunity |
| `ctr_opportunities` | Pages with high impressions but CTR below expected for their position |
| `traffic_drops` | What lost traffic, and whether it's a ranking loss, CTR collapse, or demand decline |
| `content_gaps` | Topics with search demand but no real content targeting them |
| `cannibalization_check` | Keywords where multiple pages compete against each other |
| `content_decay` | Pages declining across three consecutive 30-day periods |
| `topic_cluster_performance` | Aggregated performance for all pages matching a URL path pattern |
| `ctr_vs_benchmark` | Your actual CTR per position vs industry benchmarks |
| `inspect_url` | Is this URL indexed? Last crawl date, canonical, robots/noindex issues |
| `check_alerts` | Position drops, CTR collapses, click losses, disappeared pages. Severity-rated |
| `content_recommendations` | Prioritised actions: pages to update, content to create, pages to consolidate |
| `advanced_search_analytics` | Custom queries with flexible dimensions and filters |
| `generate_report` | Full markdown report saved to disk |
| `multi_site_dashboard` | Health check across all properties in one command |

### Indexing

| Tool | What it does |
|---|---|
| `submit_url` | Submit a URL to Google's Indexing API for crawling |
| `submit_batch` | Batch submit up to 200 URLs (daily quota) |
| `submit_sitemap` | Notify Google of a new or updated sitemap |
| `list_sitemaps` | All submitted sitemaps with status, errors, and indexed counts |

### Safety

| Tool | What it does |
|---|---|
| `verify_claim` | Self-check: re-queries GSC data to verify a numeric claim before presenting it |

## What makes this different from other Google Search Console MCP servers

**Analysis, not just API access.** Most Google Search Console MCP servers wrap the raw API. This one ships with pre-built analysis: opportunity scoring, cannibalisation detection, decay tracking, CTR benchmarking, traffic drop diagnosis. You ask a question, it runs the analysis and tells you what to do.

**Hallucination guardrails.** Every tool instructs Claude to base analysis only on returned data. Provenance metadata in every response. The `verify_claim` tool lets Claude fact-check its own numbers. Credit to [Krinal Mehta](https://www.linkedin.com/in/krinal/) for pushing this.

**Fresh data.** Uses `dataState: 'all'` so data matches the GSC dashboard, not 2-3 days stale.

**Proactive, not reactive.** Alerting, content recommendations, and scheduled reports catch problems before you think to look.

## Environment variables

| Variable | Required | Description |
|---|---|---|
| `GSC_AUTH_MODE` | No | `oauth` or `service_account` (default: `service_account`) |
| `GSC_KEY_FILE` | Service account mode | Path to service account JSON key |
| `GSC_OAUTH_SECRETS_FILE` | OAuth mode | Path to OAuth client secrets JSON |
| `GSC_OAUTH_CLIENT_ID` | OAuth mode (alt) | OAuth client ID |
| `GSC_OAUTH_CLIENT_SECRET` | OAuth mode (alt) | OAuth client secret |
| `GSC_SITE_URL` | Yes | Primary GSC property URL |
| `GSC_SITE_URLS` | No | Comma-separated list for multi-site |

## Full guide

Step-by-step setup with screenshots, use cases, and examples:

**[suganthan.com/blog/google-search-console-mcp-server/](https://suganthan.com/blog/google-search-console-mcp-server/)**

## Licence

MIT

Built by [Suganthan Mohanadasan](https://suganthan.com). If you find it useful, star it.