Serpstat MCP Server

A TypeScript server that integrates Serpstat SEO API with Anthropic's Model Context Protocol (MCP), enabling AI assistants like Claude to access comprehensive SEO data and analysis tools.

Table of Contents

• About MCP
• Prerequisites
• Installation
• Configuration
• Usage Examples
• MCP Tools
• Troubleshooting
• Development
• API Rate Limits
• Contributing
• Support
• License

About MCP

The Model Context Protocol (MCP) is an open standard developed by Anthropic that enables AI assistants to securely connect to external data sources and tools. This server implements MCP to provide Claude and other compatible AI assistants with access to Serpstat's powerful SEO analytics API.

Description

This project implements a TypeScript server that provides an API interface for working with Serpstat tools via the MCP protocol. The server supports request handling, parameter validation, logging, and working with multiple SEO analysis tools.

Features

• 🔍 Comprehensive SEO Analysis: Access domain info, keyword research, competitor analysis, and backlink data
• ✅ Input Validation: Robust parameter validation using Zod schemas
• 📊 Event Logging: Detailed logging with Winston for debugging and monitoring
• ⚙️ Flexible Configuration: Environment-based configuration with sensible defaults
• 🧪 Well Tested: Jest tests for parameter validation and business logic
• 🚀 TypeScript: Full type safety throughout the codebase

Prerequisites

• Node.js 18.0.0 or higher (Download Node.js)
• Valid Serpstat API token (get one from Serpstat)
• Compatible AI Assistant: Claude Desktop, Gemini CLI, or any MCP-compatible client

Installation

Global Installation (Recommended)

npm install -g @serpstat/serpstat-mcp-server

Local Installation

npm install @serpstat/serpstat-mcp-server

Configuration

Environment Variables

Set the following environment variables (can be in .env file):

• SERPSTAT_API_TOKEN — Your Serpstat API token (required)
• SERPSTAT_API_URL — Serpstat API URL (default: https://api.serpstat.com/v4)
• LOG_LEVEL — Logging level: error, warn, info, debug (default: info)
• SERPSTAT_ENABLED_CATEGORIES — Filter tools by categories (optional, comma-separated, default: all categories enabled)

Claude Desktop & Gemini CLI Configuration

Add to your Claude Desktop config file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%/Claude/claude_desktop_config.json Linux: ~/.config/Claude/claude_desktop_config.json

Add to your Gemini CLI config:

Linux: ~/.gemini/settings.json

{
   "mcpServers": {
      "serpstat": {
         "command": "npx",
         "args": ["-y", "@serpstat/serpstat-mcp-server"],
         "env": {
            "SERPSTAT_API_TOKEN": "YOUR_SERPSTAT_API_TOKEN_HERE",
            "LANG": "en_US.UTF-8",
            "LC_ALL": "en_US.UTF-8"
         }
      }
   }
}

For local development, use the full path:

{
  "mcpServers": {
    "serpstat": {
      "command": "node",
      "args": ["/path/to/node_modules/serpstat-mcp-server/dist/index.js"],
      "env": {
        "SERPSTAT_API_TOKEN": "YOUR_SERPSTAT_API_TOKEN_HERE"
      }
    }
  }
}

Filtering Tools by Category

You can limit which tools are available by specifying SERPSTAT_ENABLED_CATEGORIES environment variable. This is useful for:

• Reducing context window usage in AI assistants
• Focusing on specific SEO analysis areas
• Creating specialized configurations for different use cases

Available categories:

• domain - Domain analysis tools (domain info, competitors, domain keywords, etc.)
• keywords - Keyword research tools (keyword suggestions, search volume, difficulty, etc.)
• backlinks - Backlink analysis tools (backlink summary, anchors, referring domains, etc.)
• url - URL analysis tools (URL traffic, competitors, keywords, etc.)
• projects - Project management tools (create, list, delete projects)
• credits - Credits and usage monitoring tools
• rt - Rank tracking tools (rank history, SERP tracking, etc.)
• audit - Site audit tools (full site SEO audit, error reports, etc.)
• page-audit - One-page audit tools (single page analysis, on-page SEO, etc.)

Example: Enable only keyword and domain tools

{
  "mcpServers": {
    "serpstat": {
      "command": "npx",
      "args": ["-y", "@serpstat/serpstat-mcp-server"],
      "env": {
        "SERPSTAT_API_TOKEN": "YOUR_SERPSTAT_API_TOKEN_HERE",
        "SERPSTAT_ENABLED_CATEGORIES": "keywords,domain"
      }
    }
  }
}

Example: Enable only backlink analysis

{
  "mcpServers": {
    "serpstat": {
      "command": "npx",
      "args": ["-y", "@serpstat/serpstat-mcp-server"],
      "env": {
        "SERPSTAT_API_TOKEN": "YOUR_SERPSTAT_API_TOKEN_HERE",
        "SERPSTAT_ENABLED_CATEGORIES": "backlinks"
      }
    }
  }
}

Default behavior (all tools enabled):

If SERPSTAT_ENABLED_CATEGORIES is not specified or is empty, all tools are available (65 total tools across all categories).

Usage Examples

After installation and configuration in Claude Desktop, you can ask Claude:

Domain Analysis

• "Show me domain info for example.com"
• "Find competitors for my-site.com in Google US"
• "Get top 50 keywords that example.com ranks for"

Market Research

• "Show me all available market research categories"
• "Find top domains in 'E-commerce' category for Google US"
• "Get top 20 domains in '/Arts & Entertainment/TV & Video' category sorted by traffic"
• "Analyze competitive landscape in 'Business & Industrial' category with domains that have SDR above 50"
• "Find leading players in 'Health & Fitness' market with minimum 100k monthly traffic"

Keyword Research

• "Find related keywords to 'digital marketing'"
• "Get keyword suggestions for 'iphone 15' excluding 'rent' keywords"
• "Get comprehensive keyword data for [ iphone, samsung, googel pixel ] including search volume, CPC, and difficulty"

Competitor Analysis

• "Show me competitor domains ranking for pizza delivery keyword with visibility metrics"
• "Get top search results for laptop computers keyword showing positions, domains and SERP features"
• "Get unique keywords for domain1.com vs domain2.com"

Backlink Analysis

• "Analyze backlinks summary for domain.com"
• "Get anchor text analysis for domain.com backlinks"
• "Get active backlinks for domain.com showing linking pages and target URLs"
• "Get referring domains for domain.com with domain authority metrics"
• "Get lost backlinks for domain.com showing removed links and deletion dates"
• "Get top 10 anchors for domain.com with backlink counts and referring domains"
• "Get backlinks intersection for domain.com vs competitor1.com and competitor2.com showing shared referring domains"
• "Get threat backlinks for domain.com showing malicious links from sites flagged for security threats"

Project Management

• "Create a new project for example.com named My SEO Project"
• "List all my projects with pagination"
• "Delete project with ID 1234567"

Credits & Usage Monitoring

• "Show me my audit credits statistics"
• "Check my API credits usage and remaining quota"

Rank Tracking

• "List all my rank tracker projects"
• "Check parsing status for project 12345 in region 2840"

Site Audit

• "Get audit settings for project 1113915"
• "Start site audit for project 1113915"
• "Stop site audit for project 1113915"

MCP Tools

Domain Analysis Tools

| Tool Name | Description | Key Parameters | |--------------------------|---------------------------------------------------------------------------|--------------------------------------------| | get_domains_info | Get SEO information for multiple domains | domains, se, filters | | get_domain_competitors | Get list of competitor domains | domain, se, size, filters | | get_domain_keywords | Get keywords that domain ranks for | domain, se, page, size | | get_domain_urls | Get URLs within a domain and their keyword counts | domain, se, page, size | | get_domain_regions_count | Get keyword count by region for a domain | domain, sort, order | | get_domain_uniq_keywords | Get unique keywords for two domains not ranked by a third domain | se, domains, minusDomain | | get_market_categories | Get complete list of 1000+ market research categories | none | | get_category_top_domains | Get top-performing domains in a specific market category with SEO metrics | category_id, se, filters, sort, page, size |

Keyword Research Tools

| Tool Name | Description | Key Parameters | |-------------------------|----------------------------------------------------------------------------------------------------|------------------------------| | get_keywords | Get related organic keywords for a given keyword | keyword, se, filters | | get_related_keywords | Get semantically related keywords with frequency, CPC, competition, and difficulty data | keyword, se, filters, sort | | get_keyword_suggestions | Get search suggestions for a keyword using full-text search with geographic names info | keyword, se, filters | | get_keywords_info | Get keyword overview with volume, CPC, competition, difficulty, and SERP features | keywords, se, withIntents | | get_keyword_full_top | Get Google's top-100 search results for analyzed keywords | keyword, se, size | | get_keyword_top_urls | Get website pages that rank for the largest amount of analyzed keyword variations | keyword, se, page, page_size | | get_keyword_competitors | Get domains that rank for the given keyword in Google top-20 results with competitor analysis | keyword, se, filters, sort | | get_keyword_top | Get Google's top-100 search results for the analyzed keyword with position, URL, and SERP features | keyword, se, filters, size |

URL Analysis Tools

| Tool Name | Description | Key Parameters | |--------------------------|---------------------------------------------------------------------------------------------|-------------------------| | get_url_summary_traff | Get traffic and keyword statistics for website pages matching a specific URL mask | se, domain, urlContains | | get_url_competitors | Get list of URL competitors showing domains competing for same keywords in top-10 results | se, url, sort, page | | get_url_keywords | Get keywords for which specified URL ranks in top-100 Google and top-50 Bing search results | se, url, filters, sort | | get_url_missing_keywords | Get keywords that competitors rank for but the given URL does not, identifying keyword gaps | url, se, filters, sort |

Backlinks Analysis Tools

| Tool Name | Description | Key Parameters | |----------------------------|---------------------------------------------------------------------------------------------|----------------------------------| | get_backlinks_summary | Get comprehensive backlinks summary with referring domains, quality metrics, and changes | domain, subdomain | | get_anchors | Get anchor text analysis for backlinks with metrics on referring domains and backlinks | query, searchType, anchor, sort | | get_active_backlinks | Get a list of active backlinks showing linking pages, target pages, and link attributes | query, searchType, sort, page | | get_referring_domains | Get a list of referring domains with domain rank metrics and referring pages count | query, searchType, sort, page | | get_lost_backlinks | Get a list of lost backlinks showing linking pages, target pages, and deletion dates | query, searchType, sort, page | | get_top_pages_by_backlinks | Get a list of top pages by backlinks with various filtering and sorting parameters | query, searchType, sort, size | | get_top10_anchors | Get TOP-10 anchors with the number of backlinks and referring domains | query, searchType | | get_backlinks_intersection | Get backlinks from domains that link to multiple analyzed sites for competitive analysis | query, intersect, sort, page | | get_active_outlinks | Get active outbound links from a domain or URL with target URLs and anchor text | query, searchType, sort, filters | | get_active_outlink_domains | Get external domains that receive outbound links from analyzed domain | query, searchType, sort, filters | | get_threat_backlinks | Get malicious backlinks pointing to analyzed domain from sites flagged for security threats | query, searchType, sort, filters |

Project Management Tools

| Tool Name | Description | Key Parameters | |----------------|---------------------------------------------------------------------------|----------------------| | create_project | Create a new project in Serpstat for tracking SEO metrics and site audits | domain, name, groups | | delete_project | Delete an existing project from Serpstat by project ID | project_id | | list_projects | Retrieve a list of projects associated with the account with pagination | page, size |

Credits & Usage Monitoring Tools

| Tool Name | Description | Key Parameters | |-----------------------------|---------------------------------------------------------------------------------------------|----------------| | get_credits_for_audit_stats | Check available audit credits (one-page audit, JavaScript scanning, crawl limits) No cost | none | | get_credits_stats | Check API credits usage, account info, and browser plugin limits No cost | none |

Rank Tracking Tools

| Tool Name | Description | Key Parameters | |-------------------------------------|-------------------------------------------------------------------------------------------------------|----------------------------------| | get_rt_projects_list | Get rank tracker projects with ID, name, domain, creation date, and tracking status No cost | page, pageSize | | get_rt_project_status | Check if rank tracker project is parsing (true=processing, false=ready) No cost | projectId, regionId | | get_rt_project_regions_list | Get list of regions for a rank tracker project with status, SERP type, device, and location No cost | projectId | | get_rt_project_keyword_serp_history | Get Google's top-100 SERP history for rank tracker keywords with positions and URLs No cost | projectId, projectRegionId, page | | get_rt_project_url_serp_history | Get ranking history of URLs for rank tracker keywords with historical position data No cost | projectId, projectRegionId, page |

Site Audit Tools

| Tool Name | Description | Key Parameters | |-----------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------| | get_site_audit_settings | Get audit settings for a project including scan parameters, scheduling, and error thresholds No cost | projectId | | set_site_audit_settings | Update audit settings for a project with scan configuration, scheduling, and notifications No cost | projectId, mainSettings, ... | | start_site_audit | Start audit session for a project and receive reportId for tracking progress (1 credit/page, 10 credits/page with JS rendering) | projectId | | stop_site_audit | Stop active audit session for a project No cost | projectId | | get_site_audit_results_by_categories | Get audit results statistics grouped by issue categories (pages status, meta tags, links, etc.) No cost | reportId | | get_site_audit_history | Get historical error count data for a specific error type across multiple audit reports No cost | projectId, errorName, limit, offset | | get_site_audits_list | Get list of all audit reports for a project with summary statistics and progress information No cost | projectId, limit, offset | | get_site_audit_scanned_urls_list | Get list of URLs that will be scanned based on project scan settings No cost | projectId | | get_site_audit_project_default_settings | Get default audit settings template to use when creating new projects No cost | - | | get_site_audit_bref_info | Get essential summary information from latest audit including SDO score, issue counts by priority, scan progress, and completion status No cost | reportId | | get_site_audit_deteailed_report | Get number of errors categorized by type with comparison to previous report showing countAll, countNew, and countFixed No cost | reportId, compareReportId (optional) | | get_site_audit_pages_spec_errors | Get list of all pages where a specific error was detected with filtering by mode (all/new/solved) and pagination support No cost | reportId, compareReportId, projectId, errorName, mode, limit, offset | | get_site_audit_elements_with_issues | Get list of sub-elements (URLs) containing specific errors using CRC from get_site_audit_pages_spec_errors response No cost | reportId, projectId, errorName, crc, compareReportId (optional), mode, limit, offset |

One Page Audit Tools

| Tool Name | Description | Key Parameters | |-------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------| | page_audit_start_scan | Scan a single webpage with JavaScript rendering. Returns pageId and reportId for tracking. Use page_audit_get_reports_for_page to check progress via status and progress fields (10 credits per scan) | name, url, userAgent (recommended: 0 for Chrome), httpAuthLogin (optional), httpAuthPass (optional) | | page_audit_get_last_scans | Get list of all one-page audit projects with pageId, url, name, status, lastActiveReport (latest scan results with SDO score), finishedReportCount, settings No cost | limit (optional, default 30), offset (optional, default 0), teamMemberId (optional) | | page_audit_get_reports_for_page | Get history of all audit reports for a specific page with reportId, auditDate, status (1=in progress, 3=finalizing, 4=completed), SDO score (0-100), error counts, progress (0-100) No cost | pageId, limit (optional), offset (optional) | | page_audit_get_results_report | Get detailed audit results with categories array (errors grouped by meta_tags, headings, content, multimedia, https, pagespeed_desktop/mobile, etc), hasAdditionRows flag for drill-down availability No cost | pageId (from page_audit_get_last_scans or page_audit_start_scan) | | page_audit_rescan | Rescan existing one-page audit project and create new audit report. Returns reportId. Track progress via page_audit_get_reports_for_page (10 credits per rescan) | pageId, name, userAgent (recommended: 0 for Chrome), httpAuthLogin (optional), httpAuthPass (optional) | | page_audit_stop | Stop active one-page audit scan. Returns boolean indicating success No cost | pageId | | page_audit_delete | Remove one-page audit project from customer project list permanently. Returns boolean No cost | pageId | | page_audit_get_report_by_categories | Get audit results by categories for specific report. Use compareReportId to see countNew (errors added) and countFixed (errors resolved) No cost | reportId, compareReportId (optional, enables change tracking) | | page_audit_report_drill_down | Get detailed problematic elements list. ONLY works for errors with hasAdditionRows=true. Response varies by error type (e.g., image URLs for multimedia errors) No cost | reportId, error (must match error.key), mode (all/new/solved, optional), compareReportId (optional), page (optional), size (optional, max 1000) | | page_audit_get_scan_names | Get list of all one-page audit project names with pageId, name, url, finishedReportCount for project discovery No cost | teamMemberId (optional) | | page_audit_scan_logs | Get chronological log of scan events with message (event name), type (info/warning/error), params (event-specific data or []), created_at timestamp for debugging No cost | reportId (optional, all scans if not specified), page (optional, default 0), pageSize (optional, default 100) |

Search Engines (se parameter)

Common search engine codes:

• g_us - Google USA
• g_uk - Google United Kingdom
• g_ca - Google Canada
• g_au - Google Australia
• g_de - Germany
• g_fr - Google France
• g_es - Google Spain
• g_it - Google Italy
• g_pl - Google Poland
• g_ua - Google Ukraine

See a full list of Search Engines Short Names

Troubleshooting

Common Issues

"Command not found: serpstat-mcp-server"

• Make sure you installed the package globally with -g flag
• Verify your PATH includes npm global binaries: npm config get prefix
• Try reinstalling: npm uninstall -g @serpstat/serpstat-mcp-server && npm install -g @serpstat/serpstat-mcp-server

"API token error" or "Unauthorized"

• Check that SERPSTAT_API_TOKEN is set correctly in your environment
• Verify your token is valid and active in your Serpstat account
• Ensure your token has sufficient API credits and permissions

"Module not found" errors

• Make sure all dependencies are installed: npm install
• Try rebuilding: npm run clean && npm run build

Claude Desktop doesn't recognize the server

• Restart Claude Desktop after configuration changes
• Check the config file path and JSON syntax
• Verify the server starts correctly: run serpstat-mcp-server in terminal

"Can't find npx"

• You need to install Node.js - download and install Node.js

Rate limit errors

• Most Serpstat plans have 1 RPS (1 request per second) limit
• Wait between requests or contact Serpstat support for higher limits
• Check your API usage in the Serpstat dashboard

Debug Mode

Enable debug logging by setting:

export LOG_LEVEL=debug

Or in your Claude Desktop config:

{
   "mcpServers": {
      "serpstat": {
         "command": "npx",
         "args": ["-y", "@serpstat/serpstat-mcp-server"],
         "env": {
            "SERPSTAT_API_TOKEN": "YOUR_TOKEN_HERE",
            "LANG": "en_US.UTF-8",
            "LC_ALL": "en_US.UTF-8",
            "LOG_LEVEL": "debug"
         }
      }
   }
}

Development

Getting Started

1. Clone the repository:

   git clone [email protected]:SerpstatGlobal/serpstat-mcp-server-js.git
   cd serpstat-mcp-server-js

2. Install dependencies:

   npm install

3. Set environment variables:

   cp .env.example .env
   # Edit .env with your Serpstat API token

4. Build the project:

   npm run build

5. Start the server:

   npm start

6. For development mode (auto-reload):

   npm run dev

Testing

To run tests:

npm test

Run specific test file:

npx jest src/__tests__/services/keyword_tools.test.ts

Run specific test by name:

npx jest --testNamePattern="methodName"

Scripts

• npm run build — Compile TypeScript sources to JavaScript (output in dist/)
• npm start — Run the compiled server from dist/
• npm run dev — Run the server in development mode with hot-reload
• npm test — Run all tests
• npm run lint — Run linting
• npm run clean — Clean build directory

Project Structure

serpstat-mcp-server/
├── src/
│   ├── index.ts          # Entry point
│   ├── server.ts         # Main MCP server
│   ├── handlers/         # Tool handlers
│   ├── services/         # Services for Serpstat API
│   ├── types/            # Data types
│   ├── utils/            # Utilities (config, logger, validation)
│   └── __tests__/        # Tests
├── dist/                 # Compiled JavaScript (after build)
├── package.json
├── tsconfig.json
├── README.md
└── .env.example

API Rate Limits

By default, most Serpstat plans have 1 RPS (1 request per second) - this is sufficient for most tasks. If you need higher throughput, contact Serpstat support to discuss plan upgrades.

Important: The server respects rate limits automatically. If you encounter rate limit errors, wait before making additional requests.

Contributing

We welcome contributions! Please follow these steps:

1. Fork the repository
2. Create a feature branch: git checkout -b feature/amazing-feature
3. Make your changes
4. Add tests for new functionality
5. Ensure tests pass: npm test
6. Commit your changes: git commit -m 'Add amazing feature'
7. Push to the branch: git push origin feature/amazing-feature
8. Submit a pull request

Development Guidelines

• Follow existing code style and TypeScript conventions
• Add tests for new features
• Update documentation as needed
• Use conventional commit messages
• Ensure all linting passes: npm run lint

Changelog

See CHANGELOG.md for details about changes in each version.

Support

• 📖 Serpstat API Documentation
• 🐛 Report Issues

The most effective way to receive support from Serpstat is to use their live chat feature directly within the platform. Alternatively, you can email them at [email protected].

Acknowledgments

• Model Context Protocol by Anthropic
• Serpstat API for SEO data services

License

MIT License

This project is under MIT license, which means you can copy, use, modify, and even sell any part of this code without any hassle.

• See the LICENSE file for details
• Want to grab a chunk for your project? Go for it
• Want to rewrite half of it and ship a commercial product? Be my guest
• The only thing you need to do is not delete the copyright and the license itself from the files you take, and remember the Serpstat team with a kind word when you get that paycheck

With love, Serpstat R&D Team