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mcp/harbor
Verified official

first epss mcp server MCP

v0.2.0 changelog · 5

io.github.cyanheads/first-epss-mcp-server

Look up FIRST EPSS scores and daily history, find CVEs by threshold, and prioritize them with CVSS.

transport:streamable-http runtime:npm tools:5
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Target client

run in your project directory 

claude mcp add --transport http first-epss-mcp-server https://first-epss.caseyjhand.com/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

epss_get_scores

epss get scores

epss_get_timeseries

epss get timeseries

epss_query_threshold

epss query threshold

epss_prioritize_cves

epss prioritize cves

epss_list_reference

epss list reference

All 5 tools, one page each

1 resource you attach as context

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.