diff --git a/deploy-cluster-aws/write_keypairs_file.py b/deploy-cluster-aws/write_keypairs_file.py
new file mode 100644
index 00000000..379f30de
--- /dev/null
+++ b/deploy-cluster-aws/write_keypairs_file.py
@@ -0,0 +1,41 @@
+"""A Python 3 script to write a file with a specified number
+of keypairs, using bigchaindb.crypto.generate_key_pair()
+The file is always named keypairs.py (and is Python 2).
+
+Usage:
+   python3 write_keypairs_file.py <num_pairs>
+"""
+
+import argparse
+
+from bigchaindb import crypto
+
+
+# Parse the command-line arguments
+desc = 'Write a set of keypairs to keypairs.py'
+parser = argparse.ArgumentParser(description=desc)
+parser.add_argument('num_pairs',
+                    help='number of keypairs to write',
+                    type=int)
+args = parser.parse_args()
+num_pairs = int(args.num_pairs)
+
+# Generate and write the keypairs to keypairs.py
+print('Writing {} keypairs to keypairs.py...'.format(num_pairs))
+with open('keypairs.py', 'w') as f:
+    f.write('# -*- coding: utf-8 -*-\n')
+    f.write('"""A set of public/private keypairs for use in deploying\n')
+    f.write('BigchainDB servers with a predictable set of keys.\n')
+    f.write('"""\n')
+    f.write('\n')
+    f.write('from __future__ import unicode_literals\n')
+    f.write('\n')
+    f.write('keypairs_list = [')
+    for pair_num in range(num_pairs):
+        keypair = crypto.generate_key_pair()
+        spacer = '' if pair_num == 0 else '    '
+        f.write("{}('{}',\n     '{}'),\n".format(
+                spacer, keypair[0], keypair[1]))
+    f.write('    ]\n')
+
+print('Done.')