An MCP server for querying the National Vulnerability Database, a public database of software security vulnerabilities. It runs locally as a Python package.

Use it to investigate vulnerability records while reviewing software, dependencies, or security issues.

Security information can be difficult to look up consistently during development. This server gives an agent a direct way to query that vulnerability database.

mcp-nvd — MCP server for Claude Code and Codex by gkhays

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/gkhays/mcp-nvd-server

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/gkhays/mcp-nvd-server/mcp-nvd/github.svg)](https://agentmods.dev/mcp/gkhays/mcp-nvd-server/mcp-nvd)

Your own site

<a href="https://agentmods.dev/mcp/gkhays/mcp-nvd-server/mcp-nvd"><img src="https://agentmods.dev/badge/mcp/gkhays/mcp-nvd-server/mcp-nvd/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/mcp/gkhays/mcp-nvd-server/mcp-nvd"><img src="https://agentmods.dev/badge/mcp/gkhays/mcp-nvd-server/mcp-nvd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

mcp-nvd scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

listed in the official MCP registry · 8 lines

What it actually says

{ "mcp-nvd": { "command": "uvx", "args": [ "mcp-nvd" ] } }

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

10d ago First seen · 8 lines scan A 8f3cd2c3925e

Subscribe to this mod's changes

mcp-nvd is an MCP server published in the GitHub repository gkhays/mcp-nvd-server (7 stars, last pushed 1y ago), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

CVE Security mcp uv

hacker-bob

MCP server "hacker-bob" as configured in vmihalis/hacker-bob. Runs ../../../mcp/server.js with node.

vmihalis/hacker-bob · not measured

brutalist

Deploy Claude Code, Codex & Antigravity (agy) CLI agents to demolish your work before users do. Real file analysis. Brutal honesty. Per-call model pinning, conversation continuation & intelligent pagination. Runs locally from the @brutalist/mcp npm package.

vmihalis/hacker-bob · not measured

api

31 tools: CVE (340K+ EPSS/KEV), OSINT, threat intel, dep audit, code sec. No API key needed. Remote server at api.contrastcyber.com.

UPinar/contrastapi · not measured

supply-chain-mcp-server

Software supply chain security MCP server — vulnerability scanning, package analysis, provenance verification, typosquatting detection, dependency intelligence across npm, PyPI, crates.io, Go, and more. Runs locally from the supply-chain-mcp-server npm package.

badchars/supply-chain-mcp-server · not measured

nist-nvd-mcp-server

Search and audit NIST NVD CVEs by keyword, severity, CWE, CISA KEV status, and CPE. Runs locally from the @cyanheads/nist-nvd-mcp-server npm package. Needs 3 environment variables to run.

cyanheads/nist-nvd-mcp-server · not measured

security-intel-mcp

CVE lookups (NVD) and dependency-manifest audits (OSV) for AI agents. No API keys. Remote server at security.datakoot.com.

datakoot/security-intel-mcp · not measured