How do I install First Epss?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does First Epss need an API key?

The publisher lists these environment variables: MCP_LOG_LEVEL, MCP_TRANSPORT_TYPE, MCP_HTTP_HOST, MCP_HTTP_PORT, MCP_HTTP_ENDPOINT_PATH, MCP_AUTH_MODE.

What transport does First Epss use?

First Epss is reached over HTTP.

When was First Epss last checked?

Last checked 2026-11-09. Look up FIRST EPSS scores and daily history, find CVEs by threshold, and prioritize them with CVSS.

First Epss MCP server

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Add to Cursor Add in Claude Add to VS Code Run on PlugMCP

Host a copy with our keys and logs.

Server URL

https://first-epss.caseyjhand.com/mcp

Credentials from the publisher

MCP_LOG_LEVEL — Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').

The Claude button above opens Claude with the name and URL filled in. You still confirm it there.

shClaude Code

1claude mcp add --transport http io.github.cyanheads-first-epss-mcp-server https://first-epss.caseyjhand.com/mcp

Run in a terminal.

jsonClaude Desktop

1{2  "mcpServers": {3    "io.github.cyanheads-first-epss-mcp-server": {4      "command": "npx",5      "args": [6        "-y",7        "mcp-remote",8        "https://first-epss.caseyjhand.com/mcp"9      ]10    }11  }12}

claude_desktop_config.json

Remote · HTTPPublisher installStep-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Server facts

Remote

Transport: http
Version

Tools

No tool list yet. Remote servers get one after the first health check.

FAQ

First Epss

Add this server

Host a copy with our keys and logs.

Server facts

Tools

Questions

How do I install First Epss?

Does First Epss need an API key?

What transport does First Epss use?

When was First Epss last checked?

Documentation