diff --git a/check-gh-collab.sh b/check-gh-collab.sh
new file mode 100755
index 0000000..b9a0871
--- /dev/null
+++ b/check-gh-collab.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+
+usage () {
+    echo "Usage: check-collab.sh <GITHUB ORG> <GITHUB USERNAME>"
+    exit 1
+}
+
+[[ $# -ne 2 ]] && usage
+
+ORG=$1
+USER=$2
+
+REPOS_PER_PAGE=100
+
+# TODO: figure out a  way to find the last page containing repos
+for i in $(seq 5); do
+    repos+=$(curl --stderr /dev/null \
+                  -H "Authorization: token $(cat ~/.github/oauth2)" \
+                  -H "Accept: application/vnd.github.v3+json" "https://api.github.com/orgs/$ORG/repos?per_page=$REPOS_PER_PAGE&page=$i" \
+                 | jq ".[].full_name" \
+                 | tr -d '"')
+done
+
+echo "$USER is a collaborator on the following repositories:"
+
+for repo in ${repos[*]}; do
+    response=$(curl -o /dev/null \
+                    --stderr /dev/null \
+                    -H "Authorization: token $(cat ~/.github/oauth2)" \
+                    -w "%{http_code}" \
+                    -H "Accept: application/vnd.github.v3+json" \
+                    "https://api.github.com/repos/$repo/collaborators/$USER")
+    # https://docs.github.com/en/rest/reference/collaborators#check-if-a-user-is-a-repository-collaborator
+    if [[ $response == "204" ]]; then
+        echo "- $repo"
+    fi
+done