Comparison
Codex MCP Server vs ECC
ECC has more GitHub stars (279,762 vs 643). ECC was updated more recently (last commit 2d ago). Data comes straight from GitHub and refreshes daily.
Codex MCP Server
MCP server wrapper for OpenAI Codex CLI that enables Claude Code to leverage Codex's AI capabilities directly.
$
claude mcp add codex-cli -- npx -y codex-mcp-server
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
$
/plugin marketplace add https://github.com/affaan-m/ECC| Metric | Codex MCP Server | ECC |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 643 | 279,762 |
| Stars, last 7 days | n/a | n/a |
| Forks | 78 | 41,620 |
| Upvotes | 0 | 0 |
| Language | TypeScript | JavaScript |
| License | n/a | MIT |
| Last commit | 4mo ago | 2d ago |
| Created | Aug 2025 | Jan 2026 |
| Categories | AI & LLM tooling | AI & LLM tooling, Memory & knowledge, Security |