diff --git a/local/codex.sh b/local/codex.sh
new file mode 100644
index 00000000..14441e8d
--- /dev/null
+++ b/local/codex.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+set -eo pipefail
+
+# Source common functions - try local file first, fall back to remote
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" 2>/dev/null && pwd)"
+if [[ -f "${SCRIPT_DIR}/lib/common.sh" ]]; then
+    source "${SCRIPT_DIR}/lib/common.sh"
+else
+    eval "$(curl -fsSL https://raw.githubusercontent.com/OpenRouterTeam/spawn/main/local/lib/common.sh)"
+fi
+
+log_info "Codex CLI on local machine"
+echo ""
+
+# 1. Ensure local prerequisites
+ensure_local_ready
+
+# 2. Install Node.js if not already installed
+if ! command -v node &>/dev/null; then
+    log_error "Node.js is required but not installed"
+    log_error "Please install Node.js from https://nodejs.org/"
+    exit 1
+fi
+
+# 3. Install Codex if not already installed
+if command -v codex &>/dev/null; then
+    log_info "Codex already installed"
+else
+    log_warn "Installing Codex..."
+    npm install -g @openai/codex
+fi
+
+# Verify installation
+if ! command -v codex &>/dev/null; then
+    log_error "Codex installation failed"
+    log_error "The 'codex' command is not available"
+    log_error "Try installing manually: npm install -g @openai/codex"
+    exit 1
+fi
+log_info "Codex installation verified"
+
+# 4. Get OpenRouter API key
+echo ""
+if [[ -n "${OPENROUTER_API_KEY:-}" ]]; then
+    log_info "Using OpenRouter API key from environment"
+else
+    OPENROUTER_API_KEY=$(get_openrouter_api_key_oauth 5180)
+fi
+
+# 5. Inject environment variables
+log_warn "Appending environment variables to ~/.zshrc..."
+inject_env_vars_local upload_file run_server \
+    "OPENAI_API_KEY=${OPENROUTER_API_KEY}" \
+    "OPENAI_BASE_URL=https://openrouter.ai/api/v1" \
+    "OPENROUTER_API_KEY=${OPENROUTER_API_KEY}"
+
+echo ""
+log_info "Local setup completed successfully!"
+echo ""
+
+# 6. Start Codex
+if [[ -n "${SPAWN_PROMPT:-}" ]]; then
+    log_warn "Executing Codex with prompt..."
+    source ~/.zshrc 2>/dev/null || true
+    codex -m "${SPAWN_PROMPT}"
+else
+    log_warn "Starting Codex..."
+    sleep 1
+    clear 2>/dev/null || true
+    source ~/.zshrc 2>/dev/null || true
+    exec codex
+fi
diff --git a/manifest.json b/manifest.json
index 26930fc2..11f89276 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1191,7 +1191,7 @@
     "local/nanoclaw": "implemented",
     "local/aider": "missing",
     "local/goose": "implemented",
-    "local/codex": "missing",
+    "local/codex": "implemented",
     "local/interpreter": "missing",
     "local/gemini": "missing",
     "local/amazonq": "missing",