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

up checked 2026-11-11T06:38:53.800Z

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Publisher-provided description

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

Summary by lookupd

Looks up FIRST EPSS exploit-probability scores and history for CVEs, filters CVEs by threshold, and assigns remediation priority tiers.

Install

Claude Code, remote (streamable-http)

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

Claude Code, npm package (stdio)

claude mcp add first-epss-mcp-server -- npx -y @cyanheads/first-epss-mcp-server

Claude Code, npm package (stdio)

claude mcp add first-epss-mcp-server -- npx -y @cyanheads/first-epss-mcp-server

Codex, remote (streamable-http)

codex mcp add first-epss-mcp-server --url https://first-epss.caseyjhand.com/mcp

Codex, npm package (stdio)

codex mcp add first-epss-mcp-server -- npx -y @cyanheads/first-epss-mcp-server

Codex, npm package (stdio)

codex mcp add first-epss-mcp-server -- npx -y @cyanheads/first-epss-mcp-server

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "first-epss-mcp-server": {
      "url": "https://first-epss.caseyjhand.com/mcp"
    }
  }
}

Cursor, npm package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "first-epss-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/first-epss-mcp-server"
      ]
    }
  }
}

Cursor, npm package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "first-epss-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/first-epss-mcp-server"
      ]
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (5 tools)

Publisher-provided text

• epss_get_scores Retrieve latest available or historically dated FIRST EPSS probability and percentile for supplied CVEs. Process up to 500 unique entries from batchOffset; resp
• epss_get_timeseries Retrieve an EPSS anchor and up to 30 preceding daily observations for up to 50 unique CVEs from batchOffset. Response byte limits retain whole history items. Re
• epss_query_threshold Discover CVEs using inclusive EPSS or percentile bounds, CVE year or dataset-addition recency; filters intersect and at least one is required. Examine one candi
• epss_prioritize_cves Assign remediation tiers using latest or dated EPSS and caller-supplied CVSS base severity. Defaults are severity >= 7 and EPSS probability >= 0.10; select perc
• epss_list_reference Explain FIRST EPSS interpretation, model publishing dates, lookup coverage and transparent prioritization policy. Use this static reference before interpreting

Details

• Version: 0.2.0
• Transports: streamable-http, stdio
• Uptime (7 days): 100%
• Median latency: 678 ms
• First indexed: 2026-11-01T09:26:03.579Z
• Last seen in registry: 2026-11-01T09:26:03.609Z
• Repository: https://github.com/cyanheads/first-epss-mcp-server

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