diff --git a/bin/check-compose-ovh-credentials b/bin/check-compose-ovh-credentials
new file mode 100755
index 0000000..56f2fa4
--- /dev/null
+++ b/bin/check-compose-ovh-credentials
@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+## -*- encoding: utf-8 -*-
+
+import ovh
+import yaml
+import sys
+import os.path
+
+# Instantiate. Visit https://api.ovh.com/createToken/index.cgi?GET=/me
+# to get your credentials
+
+def main(argv):
+
+    if len(argv) == 1:
+        sys.stderr.write("Error: provide a YAML compose file as first argument.\n")
+        exit(1)
+
+    if not os.path.exists(argv[1]):
+        sys.stderr.write("Error: file '%s' not found.\n" % argv[0])
+        sys.stderr.write("Error: provide a YAML compose file as first argument.\n")
+        exit(1)
+
+    try:
+        with open(sys.argv[1], 'r') as stream:
+            yml = yaml.load(stream)
+    except Exception:
+        sys.stderr.write("Error: provide a YAML compose file as first argument.\n")
+        exit(1)
+
+    ovh_cfg = yml["letsencrypt"]["options"]["ovh"]
+    client = ovh.Client(
+        endpoint=ovh_cfg["entrypoint"],
+        application_key=ovh_cfg["application"]["key"],
+        application_secret=ovh_cfg["application"]["secret"],
+        consumer_key=ovh_cfg["consumer_key"],
+    )
+
+    # Print nice welcome message
+    print "Welcome", client.get('/me')['firstname']
+    domains = client.get('/domain/zone')
+    print "Domains:"
+    for domain in domains:
+        print " - %s" % domain
+
+
+if __name__ == "__main__":
+    main(sys.argv)