diff --git a/clients/py/README.md b/clients/py/README.md
index c9f1bdfa..acbe1477 100644
--- a/clients/py/README.md
+++ b/clients/py/README.md
@@ -15,7 +15,7 @@ from web3 import Web3
 from sapphirepy import sapphire
 
 # Setup your Web3 provider with a signing account.
-w3 = Web3(Web3.HTTPProvider('http://localhost:8545'))
+w3 = Web3(Web3.HTTPProvider(sapphire.NETWORKS['sapphire-localnet']))
 w3.middleware_onion.add(construct_sign_and_send_raw_middleware(account))
 
 # Finally, wrap the provider to add Sapphire end-to-end encryption.
diff --git a/clients/py/sapphirepy/sapphire.py b/clients/py/sapphirepy/sapphire.py
index fa62a5e5..eaa0a5e6 100644
--- a/clients/py/sapphirepy/sapphire.py
+++ b/clients/py/sapphirepy/sapphire.py
@@ -7,6 +7,12 @@
 
 from .envelope import TransactionCipher
 
+NETWORKS = {
+    "sapphire": "https://sapphire.oasis.io",
+    "sapphire-testnet": "https://testnet.sapphire.oasis.io",
+    "sapphire-localnet": "http://localhost:8545",
+}
+
 # Should transactions which deploy contracts be encrypted?
 ENCRYPT_DEPLOYS = False