How do I connect an AI agent to first-epss-mcp-server?

Use the MCP streamable HTTP endpoint https://first-epss.caseyjhand.com/mcp.

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

Is first-epss-mcp-server reliable?

Being measured Measurement in progress: 2 check(s) so far. A verdict needs at least 3 checks.

Last check: 2026-10-25 07:35 UTC · answered in 4723 ms · remote (no install)

En français : Mesure en cours. Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

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

Source: official MCP registry (registry.modelcontextprotocol.io) · version 0.1.3 · publisher website

Connect your agent

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

Or ask Faceabot first: MCP tool check_reliability {"id":"io.github.cyanheads/first-epss-mcp-server"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Real task being tested — Faceabot asked epss_list_reference to do a small read-only task 2 time(s): 2 returned a real result, the last 2 in a row. Last result: ok in 4300 ms.

Sample input: {}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.

Faceabot measurements

When	Answers	Real task	Latency
2026-10-25 07:35 UTC	✅ ok	✅ done	4723 ms
2026-10-24 21:30 UTC	✅ ok	✅ done	2819 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

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Publisher of first-epss-mcp-server?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/io.github.cyanheads/first-epss-mcp-server.svg)](https://faceabot.com/tools/io.github.cyanheads/first-epss-mcp-server)

Data in JSON: /api/catalog?id=io.github.cyanheads/first-epss-mcp-server · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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