First Epss MCP Server
by cyanheadsio.github.cyanheads/first-epss-mcp-serverv0.1.2
Look up FIRST EPSS scores and daily history, find CVEs by threshold, and prioritize them with CVSS.
context tax
pending
security
pending
cold start
pending
freshness
pending
Our reading of First Epss, from the data
First Epss is an MCP server from cyanheads, listed in the official MCP Registry.
We haven't measured its tool list yet, so its token cost is unknown.
It runs either locally over stdio or as a hosted endpoint.
Install First Epss MCP server
Install in Claude Code
claude mcp add first-epss -- npx -y @cyanheads/first-epss-mcp-serverInstall in Cursor
{
"mcpServers": {
"first-epss": {
"command": "npx",
"args": [
"-y",
"@cyanheads/first-epss-mcp-server"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"first-epss": {
"command": "npx",
"args": [
"-y",
"@cyanheads/first-epss-mcp-server"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"first-epss": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@cyanheads/first-epss-mcp-server"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"first-epss": {
"command": "npx",
"args": [
"-y",
"@cyanheads/first-epss-mcp-server"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| MCP_LOG_LEVEL | — | — | Sets the minimum log level for output (e.g., 'debug', 'info', 'warn'). |
| MCP_TRANSPORT_TYPE | — | — | Selects the HTTP transport. |
| MCP_HTTP_HOST | — | — | The hostname for the HTTP server. |
| MCP_HTTP_PORT | — | — | The port to run the HTTP server on. |
| MCP_HTTP_ENDPOINT_PATH | — | — | The endpoint path for the MCP server. |
| MCP_AUTH_MODE | — | — | Authentication mode to use: 'none', 'jwt', or 'oauth'. |
Freshness
Not enough public signals yet to judge maintenance.
Last commit (default branch)
2026-10-19 · today · GitHub
Latest release
2026-10-19 · today · GitHub · v0.1.2
Package published
no data · npm/PyPI
Registry entry updated
2026-10-19 · today · official registry · v0.1.2
FAQ
›How do I install the First Epss MCP server in Claude Code?
Run: claude mcp add first-epss -- npx -y @cyanheads/first-epss-mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does First Epss require an API key?
No required environment variables are declared in its published metadata.
›Can I use First Epss as a remote (hosted) MCP server?
Yes — it offers both a hosted endpoint and a local stdio package.
›Is First Epss in the official MCP registry?
Yes, as io.github.cyanheads/first-epss-mcp-server.
Sources and method
- Official MCP Registry entry
- updated 2026-10-19
- GitHub repository
- fetched 2026-10-19
- Package registry (npm / PyPI)
- listed
- Last checked against all sources
- 2026-10-19
The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.