diff --git a/alhp-check.sh b/alhp-check.sh
new file mode 100644
index 0000000..f578f25
--- /dev/null
+++ b/alhp-check.sh
@@ -0,0 +1,71 @@
+#!/usr/bin/bash
+
+updatesAvailable() {
+  repos=("core-x86-64-v3" "extra-x86-64-v3" "multilib-x86-64-v3")
+
+  output_json=false
+  check_pkg=""
+  
+  # Parse arguments
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+      -j|--json) output_json=true; shift ;;
+      --check-pkg)
+        check_pkg="$2"
+        shift 2
+        ;;
+      *)
+        echo "Unknown argument: $1"
+        return 1
+        ;;
+    esac
+  done
+
+  declare -A pkgs
+
+  # Collect installed packages
+  yay -Sl "${repos[@]}" | while read -r _ name version status; do
+    if [[ $status == *installed* ]]; then
+      pkgs["$name"]=1
+    fi
+  done
+
+  repo_query=$(printf '&repo=%s' "${repos[@]}")
+  api_url="https://api.alhp.dev/packages?limit=0&offset=0&status=queued&status=building${repo_query}"
+
+  if [[ -n "$check_pkg" ]]; then
+    # Check if a specific package is building
+    building_pkgs=$(curl -s "$api_url" \
+      | jq -r --arg pkg "$check_pkg" '.packages[] | select(.split_packages[] == $pkg) | .split_packages[]')
+
+    matches=()
+    for bpkg in $building_pkgs; do
+      if [[ -n "${pkgs[$bpkg]}" ]]; then
+        matches+=("$bpkg")
+      fi
+    done
+
+    if $output_json; then
+      printf '%s\n' "${matches[@]}" | jq -Rn '[inputs]'
+    else
+      printf '%s\n' "${matches[@]}"
+    fi
+
+  else
+    # Full scan
+    matches=()
+    while read -r pkgname; do
+      if [[ -n "${pkgs[$pkgname]}" ]]; then
+        matches+=("$pkgname")
+      fi
+    done < <(curl -s "$api_url" | jq -r '.packages[] | .split_packages[]')
+
+    if $output_json; then
+      printf '%s\n' "${matches[@]}" | jq -Rn '[inputs]'
+    else
+      printf '%s\n' "${matches[@]}"
+    fi
+  fi
+}
+
+updatesAvailable "$@"
diff --git a/alhp-install-check.hook b/alhp-install-check.hook
new file mode 100644
index 0000000..9b1a152
--- /dev/null
+++ b/alhp-install-check.hook
@@ -0,0 +1,10 @@
+[Trigger]
+Operation = Install
+Type = Package
+Target = *
+
+[Action]
+Description = Check if packages being installed are building on ALHP
+When = PreTransaction
+Exec = /usr/local/bin/alhp-pacman-hook.sh %n
+Depends = jq,curl,yay
diff --git a/alhp-pacman-hook.sh b/alhp-pacman-hook.sh
new file mode 100644
index 0000000..8e3c208
--- /dev/null
+++ b/alhp-pacman-hook.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/bash
+
+ALHP_SCRIPT="/usr/local/bin/alhp-check.sh"
+building_pkgs=()
+
+if [[ $# -gt 0 ]]; then
+  # Check only specified packages (for install hook)
+  for pkg in "$@"; do
+    result=$($ALHP_SCRIPT --check-pkg "$pkg" -j)
+    if [[ "$result" != "[]" ]]; then
+      building_pkgs+=("$pkg")
+    fi
+  done
+else
+  # No args: full scan (for upgrade hook)
+  mapfile -t building_pkgs < <($ALHP_SCRIPT)
+fi
+
+if (( ${#building_pkgs[@]} > 0 )); then
+  echo "WARNING: The following packages are currently building or queued on ALHP:"
+  for p in "${building_pkgs[@]}"; do
+    echo "  - $p"
+  done
+  # Uncomment to abort pacman transaction
+  # exit 1
+fi
+
+exit 0
diff --git a/alhp-upgrade-check.hook b/alhp-upgrade-check.hook
new file mode 100644
index 0000000..a99939d
--- /dev/null
+++ b/alhp-upgrade-check.hook
@@ -0,0 +1,10 @@
+[Trigger]
+Operation = Upgrade
+Type = Package
+Target = *
+
+[Action]
+Description = Check if installed packages have new versions building on ALHP
+When = PreTransaction
+Exec = /usr/local/bin/alhp-pacman-hook.sh
+Depends = jq,curl,yay