overflo.ws MCP

A public, read-only MCP server that provides access to vulnerability intelligence data. It allows AI agents to search for CVEs, look up vendors and products, retrieve CISA KEV exploitation status, get EPSS scores, and check open-source packages for vulnerabilities and malicious releases. The service aggregates data from NVD, CVE.org, OSV, GitHub Advisory Database, CISA KEV, and FIRST EPSS without requiring authentication.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-18Operated by overflo.ws

MCP endpoint (Streamable HTTP)

https://mcp.overflo.ws/mcp

Vendor documentation

What you can do with it

Search for CVEs by product or vendor
Check CISA KEV exploitation status for specific CVEs
Verify if an open-source package has known vulnerabilities
Retrieve EPSS scores for risk assessment

Tools advertised by the last live check:

get_cve
find_package
check_package
find_product
cve_highlights
get_vendor
search_cves

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http overflo-ws-mcp https://mcp.overflo.ws/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add overflo-ws-mcp --url https://mcp.overflo.ws/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable overflo-ws-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "overflo-ws-mcp": {
      "url": "https://mcp.overflo.ws/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "overflo-ws-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.overflo.ws/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start overflo-ws-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "overflo-ws-mcp": {
      "type": "http",
      "url": "https://mcp.overflo.ws/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http overflo-ws-mcp https://mcp.overflo.ws/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "overflo-ws-mcp": {
      "url": "https://mcp.overflo.ws/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "overflo-ws-mcp": {
      "serverUrl": "https://mcp.overflo.ws/mcp"
    }
  }
}

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