The First Epss MCP Server MCP server,
connected in one click.
Look up FIRST EPSS scores and daily history, find CVEs by threshold, and prioritize them with CVSS. Connect the official First Epss MCP Server MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add First Epss MCP Server to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http first-epss-mcp-server https://first-epss.caseyjhand.com/mcpRun in your terminal, then restart Claude Code.
First Epss MCP Server · https://first-epss.caseyjhand.com/mcp
What your AI can do with First Epss MCP Server
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “epss_get_scores”: Retrieve latest available or historically dated FIRST EPSS probability and percentile for supplied CVEs. Process up to 500 unique entries fr.”
“Use “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 who.”
“Use “epss_query_threshold”: Discover CVEs using inclusive EPSS or percentile bounds, CVE year or dataset-addition recency; filters intersect and at least one is require.”
“Use “epss_prioritize_cves”: Assign remediation tiers using latest or dated EPSS and caller-supplied CVSS base severity. Defaults are severity >= 7 and EPSS probability.”
How secure is the First Epss MCP Server MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how First Epss MCP Server holds up.
Security grade A
gate scanned 5 tools on Nov 8, 2026 for prompt injection and risky tool definitions — nothing to flag.
- lowepss_prioritize_cves: Unusually long tool description
Official endpoint
Operated by First Epss MCP Server (caseyjhand.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If First Epss MCP Server adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick First Epss MCP Server
Choose First Epss MCP Server in the gate directory. No sign-in needed.
Use it anywhere
First Epss MCP Server's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools First Epss MCP Server exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
epss_get_scores — Retrieve latest available or historically dated FIRST EPSS probability and percentile for supplied CVEs. Process up to 500 unique entries fr
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 who
epss_query_threshold — Discover CVEs using inclusive EPSS or percentile bounds, CVE year or dataset-addition recency; filters intersect and at least one is require
epss_prioritize_cves — Assign remediation tiers using latest or dated EPSS and caller-supplied CVSS base severity. Defaults are severity >= 7 and EPSS probability
epss_list_reference — Explain FIRST EPSS interpretation, model publishing dates, lookup coverage and transparent prioritization policy. Use this static reference
Who runs the First Epss MCP Server MCP server?
The First Epss MCP Server MCP server at a glance
https://first-epss.caseyjhand.com/mcpQuestions, answered
Is there an official First Epss MCP Server MCP server?
Yes — First Epss MCP Server operates its own remote MCP server at first-epss.caseyjhand.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect First Epss MCP Server to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick First Epss MCP Server in the directory. No account or sign-in is needed. From then on, First Epss MCP Server's tools are available in every client you've connected to gate.
Do I need to host anything?
No. First Epss MCP Server runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the First Epss MCP Server MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect First Epss MCP Server in minutes. No credit card required.
Connect more than just First Epss MCP Server
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up First Epss MCP Server in: Claude · Claude Code · ChatGPT · Cursor · VS Code
Give your AI First Epss MCP Server — safely.
One URL. All MCPs. Full control. Free to start.
Get started free