context tax
pending
security
97/100
cold start
pending
freshness
Stale12mo ago
Our reading of Codex, from the data
Codex is an MCP server from cexll.
We haven't measured its tool list yet, so its token cost is unknown.
It looks stale: the newest commit, release or package publish we found was 12 months ago (2025-11-02).
It runs locally on your machine over stdio.
Install Codex MCP server
Install in Claude Code
claude mcp add codex-cexll -- npx -y @cexll/codex-mcp-serverInstall in Cursor
{
"mcpServers": {
"codex-cexll": {
"command": "npx",
"args": [
"-y",
"@cexll/codex-mcp-server"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"codex-cexll": {
"command": "npx",
"args": [
"-y",
"@cexll/codex-mcp-server"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"codex-cexll": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@cexll/codex-mcp-server"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"codex-cexll": {
"command": "npx",
"args": [
"-y",
"@cexll/codex-mcp-server"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Security signals
97/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.
Deductions
- No security policy (SECURITY.md)-3
Checks
- ✓Repository hygiene (archived, activity, license, security policy)
- ○Package metadata (install scripts, provenance) — pending
- ○Tool descriptions (prompt-injection and hidden-text heuristics) — pending
- ○Source scan (secrets, CVEs, risky code) by vectra-guard — pending
Scan it yourself before installing with vectra-guard, the open-source agent security CLI (made by NavyaAI, which also runs MCPSkillHub). Scoring rules
Freshness
Stale — last maintenance signal 12mo ago. The newest of the signals below sets the band.
Last commit (default branch)
2025-11-02 · 12mo ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
no data · official registry
FAQ
›How do I install the Codex MCP server in Claude Code?
Run: claude mcp add codex-cexll -- npx -y @cexll/codex-mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Codex require an API key?
No required environment variables are declared in its published metadata.
›Can I use Codex as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Codex in the official MCP registry?
No. It was indexed from npm.
Sources and method
- GitHub repository
- fetched 2026-10-19
- Package registry (npm / PyPI)
- listed
- Security signals, computed by us
- 2026-10-19
- 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. Editorial standards are owned by Ramachandra Vikas Chamarthi, Founder & AI HPC Architect. Spot an error? Request a correction or claim the listing.