Security

EPSS MCP Server

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The Exploit Prediction Scoring System (EPSS) by FIRST.org estimates the probability that a CVE will be exploited in the wild within 30 days. Look up exploit scores for specific CVEs, discover the most exploitable vulnerabilities, track score trends over time, and filter by score or percentile ranges for risk prioritization.

8 tools
Agent guide included
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AI Skill
SKILL.md

Domain knowledge for EPSS — workflow patterns, data models, and gotchas for your AI agent.

EPSS

The Exploit Prediction Scoring System (EPSS) by FIRST.org estimates the probability a CVE will be exploited within 30 days. Prioritize remediation by exploit likelihood.

Data Model

  • Point-in-time scores — current EPSS probability, historical trend lines, and scores as-of arbitrary dates.
  • Rankings — leaderboards of the highest-risk CVEs with optional minimum-score filters and percentile cutoffs.
  • Batch workflows — evaluate many ids at once, run fuzzy text search with score floors, and export consolidated risk summaries.

Gotchas

  • Public API: Rate limit 60/min. Use batch lookups, cache results.

Tools in this Server (8)

Most Exploitable

Discover the most exploitable CVEs by EPSS score. Filter by minimum/maximum exploit probability to find vulnerabilities most likely to be exploited in...

Risk Report

Generate a threat landscape report showing how many CVEs fall into each EPSS risk band (CRITICAL/HIGH/MEDIUM/LOW). Provides total counts at each thres...

Score At Date

Get the EPSS exploit prediction score for a CVE at a specific historical date. Useful for understanding how exploit risk has evolved, or for retrospec...

Score By Percentile

Find CVEs by EPSS percentile ranking. The percentile shows where a CVE ranks relative to all other scored CVEs. A percentile of 0.99 means the CVE has...

Score History

Get the 30-day EPSS score trend for a specific CVE. Shows how the exploit prediction probability has changed over the past month. Useful for identifyi...

Score Lookup

Look up EPSS exploit prediction scores for one or more CVEs. Returns the probability (0-1) that each CVE will be exploited in the wild within 30 days,...

Search

Search the EPSS database by CVE ID pattern. Find all scored CVEs matching a text pattern — useful for year-based analysis (e.g., 'CVE-2025'), vendor-r...

Triage

Triage a list of CVEs from a vulnerability scan by exploit probability. Pass in CVE IDs from a scan report and get back a prioritized remediation plan...

Frequently Asked Questions

What is the EPSS MCP server?

The Exploit Prediction Scoring System (EPSS) by FIRST.org estimates the probability that a CVE will be exploited in the wild within 30 days. Look up exploit scores for specific CVEs, discover the most exploitable vulnerabilities, track score trends over time, and filter by score or percentile ranges for risk prioritization. It provides 8 tools that AI agents can use through the Model Context Protocol (MCP).

How do I connect EPSS to my AI agent?

Add the MCPBundles server URL to your MCP client configuration (Claude Desktop, Cursor, VS Code, etc.). The URL format is: https://mcp.mcpbundles.com/bundle/epss. Authentication is handled automatically.

How many tools does EPSS provide?

EPSS provides 8 tools that can be called by AI agents, along with a SKILL.md that gives your AI agent domain knowledge about when and how to use them.

What authentication does EPSS require?

EPSS uses open data APIs — no authentication required.

Setup Instructions

Connect EPSS to any MCP client in minutes

https://mcp.mcpbundles.com/bundle/epss

What is MCP?

Model Context Protocol lets AI tools call external capabilities securely through a single URL. This bundle groups tools behind an MCP endpoint that many clients can use.

Use this bundle in 3 steps

  1. Copy the MCP URL above
  2. Open your AI tool and add a new MCP/connector
  3. Paste the URL and follow any auth prompts

Claude Desktop Users

Skip the manual setup! Use the .mcpb file format for one-click installation. Check the Claude Desktop tab for setup instructions.

Pick your tool tab for exact steps

Select ChatGPT, Cursor, Claude Code, or another tab for copy-paste config.

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EPSS MCP Server & Skill — 8 Tools