Securityscorecard MCP

Community-built, comprehensive MCP server for the SecurityScorecard API (unofficial).

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "securityscorecard-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "always"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Capabilities & Tool Schemas (9)Self-reported

Inspect callable tools, capabilities, and parameters exposed to AI agents by Securityscorecard MCP.

security_dashboard

Score, grade, and key security metrics

analyze_security_risks

Issue prioritization and risk analysis

create_improvement_plan

Actionable remediation roadmaps

discover_assets

Asset inventory with security context

analyze_email_security

SPF/DMARC/DKIM analysis

api_discovery

Search 517 API endpoints with hybrid semantic/keyword search

Documentation Overview

SSC MCP Server

A community-built, comprehensive Model Context Protocol (MCP) server that integrates with the SecurityScorecard API. It runs over stdio, so it works with any MCP-compatible client — Claude Desktop, Claude Code, Cursor, VS Code, and others.

Published on npm as @callmarcus/securityscorecard-mcp and listed in the MCP Registry as io.github.CallMarcus/securityscorecard-mcp.

Disclaimer: This is an independent, community-built open-source project. It is not affiliated with, endorsed by, sponsored by, or associated with SecurityScorecard, Inc. in any way. It is built solely against SecurityScorecard's publicly available API documentation. "SecurityScorecard" and all related names, marks, and logos are trademarks of SecurityScorecard, Inc. and are used here for identification purposes only. You must supply your own API credentials and comply with SecurityScorecard's terms of service.

Quick Start

Prerequisites

Node.js 20+ - Download
SecurityScorecard API Token - Get from your SecurityScorecard dashboard

Option A — Install from npm (recommended)

No clone or build required. The server runs over stdio via npx, so any MCP-compatible client can launch it. npx -y always fetches the latest published version.

Most clients — Claude Desktop, Cursor, Cline, Windsurf, and others — share the same mcpServers JSON. Add this block to the client's MCP config:

config.json

{

  "mcpServers": {

    "security-scorecard": {

      "command": "npx",

      "args": ["-y", "@callmarcus/securityscorecard-mcp"],

      "env": {

        "SECURITY_SCORECARD_API_TOKEN": "your-api-token-here",

        "COMPANY_DOMAIN": "example.com"

      }

    }

  }

}

Where that config file lives:

Client	Config file
Claude Desktop (Windows)	`%APPDATA%\Claude\claude_desktop_config.json`
Claude Desktop (macOS)	`~/Library/Application Support/Claude/claude_desktop_config.json`
Cursor	`~/.cursor/mcp.json` (global) or `.cursor/mcp.json` (project)

Replace the credentials with your own, then restart the client.

Claude Code — add it from the CLI instead:

Terminal

claude mcp add security-scorecard \

  --env SECURITY_SCORECARD_API_TOKEN=your-api-token-here \

  --env COMPANY_DOMAIN=example.com \

  -- npx -y @callmarcus/securityscorecard-mcp

On Windows, wrap the launcher in cmd /c: ... -- cmd /c npx -y @callmarcus/securityscorecard-mcp.

VS Code (Copilot) — uses a servers key with an explicit type, in .vscode/mcp.json:

config.json

{

  "servers": {

    "security-scorecard": {

      "type": "stdio",

      "command": "npx",

      "args": ["-y", "@callmarcus/securityscorecard-mcp"],

      "env": {

        "SECURITY_SCORECARD_API_TOKEN": "your-api-token-here",

        "COMPANY_DOMAIN": "example.com"

      }

    }

  }

}

Option B — Run from source (for development)

bash

# Clone the repository

git clone https://github.com/CallMarcus/security-scorecard-mcp.git

cd security-scorecard-mcp



# Install dependencies

npm install



# Build (use build:fast to avoid memory issues)

npm run build:fast

Then point your MCP client at the local build. For clients that use the mcpServers format (Claude Desktop, Cursor, …):

config.json

{

  "mcpServers": {

    "security-scorecard": {

      "command": "node",

      "args": ["/path/to/security-scorecard-mcp/build/index.js"],

      "env": {

        "SECURITY_SCORECARD_API_TOKEN": "your-api-token-here",

        "COMPANY_DOMAIN": "example.com"

      }

    }

  }

}

Important: Replace the path and credentials with your actual values, then restart your MCP client. (For Claude Code, run claude mcp add security-scorecard --env SECURITY_SCORECARD_API_TOKEN=your-api-token-here -- node /path/to/security-scorecard-mcp/build/index.js.)

Available Tools

The server (index.js) provides 9 specialized tools:

Tool	Purpose
`security_dashboard`	Score, grade, and key security metrics
`analyze_security_risks`	Issue prioritization and risk analysis
`create_improvement_plan`	Actionable remediation roadmaps
`discover_assets`	Asset inventory with security context
`analyze_email_security`	SPF/DMARC/DKIM analysis
`api_discovery`	Search 517 API endpoints with hybrid semantic/keyword search
`analyze_issue_types`	Granular issue type breakdowns
`validate_data_completeness`	Cross-tool data verification
`query_security_data`	Direct API access with discovery

Response Modes

Each tool supports three response modes for token efficiency:

minimal - Quick answers (15-50 tokens)
standard - Overview with context (200-300 tokens)
detailed - Comprehensive analysis (800+ tokens)

Environment Variables

Variable	Required	Description
`SECURITY_SCORECARD_API_TOKEN`	Yes	Your API token
`COMPANY_DOMAIN`	No	Default domain for queries
`DEBUG_MODE`	No	Set `true` for verbose logging

Optional rate limiting and caching:

Code

REQUEST_CACHE_TTL_MS=300000

REQUESTS_PER_INTERVAL=5

REQUEST_INTERVAL_MS=1000

API Discovery

The server includes hybrid search (semantic + keyword) for finding SecurityScorecard API endpoints:

Code

Use api_discovery to search for "email security"

This searches 517 indexed endpoints and returns matching paths with confidence scores, required parameters, and curl examples.

To update the API reference after changes:

Terminal

npm run api:embed    # Regenerate semantic embeddings

npm run api:update   # Regenerate docs + embeddings

Development

Build Commands

Terminal

npm run build:fast   # Recommended - uses esbuild (~130ms)

npm run build        # TypeScript compiler (may OOM on some systems)

npm test             # Run tests

Project Structure

Code

src/

  index.ts               # MCP server (9 tools)

  api/client.ts          # SecurityScorecard API client

  integration/           # API discovery system

docs/api/                # Self-contained API reference

  index.jsonl            # Endpoint index (517 endpoints)

  index-embeddings.json  # Semantic search embeddings

build/                   # Compiled JavaScript

Testing

Terminal

npm test             # Run test suite

Troubleshooting

Build fails with out of memory

Use the fast build instead:

Terminal

npm run build:fast

"Cannot find module" errors

Reinstall dependencies:

bash

rm -rf node_modules

npm install

npm run build:fast

Semantic search degrades to keyword-only (Windows + WSL)

Install for the platform that runs the server. Claude Desktop on Windows launches the server with Windows node, so if npm install ran under WSL the native modules (onnxruntime-node, sharp) only have linux binaries — the embeddings layer fails to load and api_discovery silently degrades to keyword-only search (results still come back, but confidence scoring is cruder). Run npm install && npm run build:fast from PowerShell or cmd in the repo directory instead — or keep two clones, one per platform.

Your client doesn't see the server

Double-check the config file location for your client (see Quick Start)
For a from-source install, verify the path to build/index.js is correct
Restart the client completely
Sanity-check that the server starts on its own: npx -y @callmarcus/securityscorecard-mcp (it should launch and wait silently on stdio)

API returns 401 Unauthorized

Your API token is invalid or expired. Get a new one from SecurityScorecard dashboard.

License

MIT

Links

Read the full README →View source on GitHub →

Related MCP Servers

View all in Security View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

Last commit

14d ago

Most recent push to the default branch.

Tools exposed

Callable tools this server registers over MCP.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Securityscorecard MCP

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "securityscorecard-mcp": { "command": "npx", "args": ["-y","always"] } }

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Technical Specs & Signals

CategorySecurity

4/4 checks healthy over the last 45d

52Quality signal: Good · 52/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools25/30

Adoption & activity4/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 2d ago via OSV.dev · always (npm)

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More in 🔒 Security →Best MCP servers for Security →Alternatives to Securityscorecard MCP →Install in Claude Desktop Install in Cursor Install in VS Code Setup guides for all 13 MCP clients

Securityscorecard MCP

Community-built, comprehensive MCP server for the SecurityScorecard API (unofficial).

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "securityscorecard-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "always"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Capabilities & Tool Schemas (9)Self-reported

Inspect callable tools, capabilities, and parameters exposed to AI agents by Securityscorecard MCP.

security_dashboard

Score, grade, and key security metrics

analyze_security_risks

Issue prioritization and risk analysis

create_improvement_plan

Actionable remediation roadmaps

discover_assets

Asset inventory with security context

analyze_email_security

SPF/DMARC/DKIM analysis

api_discovery

Search 517 API endpoints with hybrid semantic/keyword search

Documentation Overview

SSC MCP Server

Published on npm as @callmarcus/securityscorecard-mcp and listed in the MCP Registry as io.github.CallMarcus/securityscorecard-mcp.

Disclaimer: This is an independent, community-built open-source project. It is not affiliated with, endorsed by, sponsored by, or associated with SecurityScorecard, Inc. in any way. It is built solely against SecurityScorecard's publicly available API documentation. "SecurityScorecard" and all related names, marks, and logos are trademarks of SecurityScorecard, Inc. and are used here for identification purposes only. You must supply your own API credentials and comply with SecurityScorecard's terms of service.

Quick Start

Prerequisites

Node.js 20+ - Download
SecurityScorecard API Token - Get from your SecurityScorecard dashboard

Option A — Install from npm (recommended)

No clone or build required. The server runs over stdio via npx, so any MCP-compatible client can launch it. npx -y always fetches the latest published version.

Most clients — Claude Desktop, Cursor, Cline, Windsurf, and others — share the same mcpServers JSON. Add this block to the client's MCP config:

config.json

{

  "mcpServers": {

    "security-scorecard": {

      "command": "npx",

      "args": ["-y", "@callmarcus/securityscorecard-mcp"],

      "env": {

        "SECURITY_SCORECARD_API_TOKEN": "your-api-token-here",

        "COMPANY_DOMAIN": "example.com"

      }

    }

  }

}

Where that config file lives:

Client	Config file
Claude Desktop (Windows)	`%APPDATA%\Claude\claude_desktop_config.json`
Claude Desktop (macOS)	`~/Library/Application Support/Claude/claude_desktop_config.json`
Cursor	`~/.cursor/mcp.json` (global) or `.cursor/mcp.json` (project)

Replace the credentials with your own, then restart the client.

Claude Code — add it from the CLI instead:

Terminal

claude mcp add security-scorecard \

  --env SECURITY_SCORECARD_API_TOKEN=your-api-token-here \

  --env COMPANY_DOMAIN=example.com \

  -- npx -y @callmarcus/securityscorecard-mcp

On Windows, wrap the launcher in cmd /c: ... -- cmd /c npx -y @callmarcus/securityscorecard-mcp.

VS Code (Copilot) — uses a servers key with an explicit type, in .vscode/mcp.json:

config.json

{

  "servers": {

    "security-scorecard": {

      "type": "stdio",

      "command": "npx",

      "args": ["-y", "@callmarcus/securityscorecard-mcp"],

      "env": {

        "SECURITY_SCORECARD_API_TOKEN": "your-api-token-here",

        "COMPANY_DOMAIN": "example.com"

      }

    }

  }

}

Option B — Run from source (for development)

bash

# Clone the repository

git clone https://github.com/CallMarcus/security-scorecard-mcp.git

cd security-scorecard-mcp



# Install dependencies

npm install



# Build (use build:fast to avoid memory issues)

npm run build:fast

Then point your MCP client at the local build. For clients that use the mcpServers format (Claude Desktop, Cursor, …):

config.json

{

  "mcpServers": {

    "security-scorecard": {

      "command": "node",

      "args": ["/path/to/security-scorecard-mcp/build/index.js"],

      "env": {

        "SECURITY_SCORECARD_API_TOKEN": "your-api-token-here",

        "COMPANY_DOMAIN": "example.com"

      }

    }

  }

}

Available Tools

The server (index.js) provides 9 specialized tools:

Tool	Purpose
`security_dashboard`	Score, grade, and key security metrics
`analyze_security_risks`	Issue prioritization and risk analysis
`create_improvement_plan`	Actionable remediation roadmaps
`discover_assets`	Asset inventory with security context
`analyze_email_security`	SPF/DMARC/DKIM analysis
`api_discovery`	Search 517 API endpoints with hybrid semantic/keyword search
`analyze_issue_types`	Granular issue type breakdowns
`validate_data_completeness`	Cross-tool data verification
`query_security_data`	Direct API access with discovery

Response Modes

Each tool supports three response modes for token efficiency:

minimal - Quick answers (15-50 tokens)
standard - Overview with context (200-300 tokens)
detailed - Comprehensive analysis (800+ tokens)

Environment Variables

Variable	Required	Description
`SECURITY_SCORECARD_API_TOKEN`	Yes	Your API token
`COMPANY_DOMAIN`	No	Default domain for queries
`DEBUG_MODE`	No	Set `true` for verbose logging

Optional rate limiting and caching:

Code

REQUEST_CACHE_TTL_MS=300000

REQUESTS_PER_INTERVAL=5

REQUEST_INTERVAL_MS=1000

API Discovery

The server includes hybrid search (semantic + keyword) for finding SecurityScorecard API endpoints:

Code

Use api_discovery to search for "email security"

This searches 517 indexed endpoints and returns matching paths with confidence scores, required parameters, and curl examples.

To update the API reference after changes:

Terminal

npm run api:embed    # Regenerate semantic embeddings

npm run api:update   # Regenerate docs + embeddings

Development

Build Commands

Terminal

npm run build:fast   # Recommended - uses esbuild (~130ms)

npm run build        # TypeScript compiler (may OOM on some systems)

npm test             # Run tests

Project Structure

Code

src/

  index.ts               # MCP server (9 tools)

  api/client.ts          # SecurityScorecard API client

  integration/           # API discovery system

docs/api/                # Self-contained API reference

  index.jsonl            # Endpoint index (517 endpoints)

  index-embeddings.json  # Semantic search embeddings

build/                   # Compiled JavaScript

Testing

Terminal

npm test             # Run test suite

Troubleshooting

Build fails with out of memory

Use the fast build instead:

Terminal

npm run build:fast

"Cannot find module" errors

Reinstall dependencies:

bash

rm -rf node_modules

npm install

npm run build:fast

Semantic search degrades to keyword-only (Windows + WSL)

Your client doesn't see the server

Double-check the config file location for your client (see Quick Start)
For a from-source install, verify the path to build/index.js is correct
Restart the client completely
Sanity-check that the server starts on its own: npx -y @callmarcus/securityscorecard-mcp (it should launch and wait silently on stdio)

API returns 401 Unauthorized

Your API token is invalid or expired. Get a new one from SecurityScorecard dashboard.

License

MIT

Links

Read the full README →View source on GitHub →

Related MCP Servers

View all in Security View all alternatives

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

Last commit

14d ago

Most recent push to the default branch.

Tools exposed

Callable tools this server registers over MCP.

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Securityscorecard MCP

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "securityscorecard-mcp": { "command": "npx", "args": ["-y","always"] } }

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/securityscorecard-mcp?style=directory)](https://allmcps.com/mcp/securityscorecard-mcp)

HTML Embed

<a href="https://allmcps.com/mcp/securityscorecard-mcp"><img src="https://allmcps.com/api/badge/securityscorecard-mcp?style=directory" alt="Securityscorecard MCP on AllMCPs" /></a>

Technical Specs & Signals

CategorySecurity

4/4 checks healthy over the last 45d

52Quality signal: Good · 52/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools25/30

Adoption & activity4/15

Community engagement0/10

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 2d ago via OSV.dev · always (npm)

★ Spotlight Slot

Feature Your MCP Server

Get maximum visibility for your server across our directory, search results, and detail pages.

Spotlight Your Server

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in 🔒 Security →Best MCP servers for Security →Alternatives to Securityscorecard MCP →Install in Claude Desktop Install in Cursor Install in VS Code Setup guides for all 13 MCP clients