diff --git a/nillion_python_helpers/payments.py b/nillion_python_helpers/payments.py
index 169c4c5..eadf0d4 100644
--- a/nillion_python_helpers/payments.py
+++ b/nillion_python_helpers/payments.py
@@ -98,20 +98,27 @@ async def pay_with_quote(
     return nillion.PaymentReceipt(quote, submitted_tx.tx_hash)
 
 
-def create_payments_config(chain_id, payments_endpoint):
+def create_payments_config(chain_id, payments_endpoint, scheme="grpc"):
     """
     Creates a network configuration for the payments client.
 
     Args:
         chain_id: The chain ID of the network.
-        payments_endpoint: The endpoint URL for the payments service.
+        payments_endpoint: The http or https endpoint URL for the payments service.
+        scheme: The scheme to use for the URL. Defaults to "grpc".
 
     Returns:
         NetworkConfig: The network configuration object.
     """
+    if not payments_endpoint.startswith(("http://", "https://")):
+        print(
+            "Deprecation warning: payments_endpoint should start with http:// or https://"
+        )
+        payments_endpoint = f"http://{payments_endpoint}"
+
     return NetworkConfig(
         chain_id=chain_id,
-        url=f"grpc+http://{payments_endpoint}/",
+        url=f"{scheme}+{payments_endpoint}/",
         fee_minimum_gas_price=0,
         fee_denomination="unil",
         staking_denomination="unil",
diff --git a/poetry.lock b/poetry.lock
index 1db5b15..949893f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -432,19 +432,19 @@ files = [
 
 [[package]]
 name = "platformdirs"
-version = "4.2.2"
+version = "4.3.2"
 description = "A small Python package for determining appropriate platform-specific dirs, e.g. a `user data dir`."
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "platformdirs-4.2.2-py3-none-any.whl", hash = "sha256:2d7a1657e36a80ea911db832a8a6ece5ee53d8de21edd5cc5879af6530b1bfee"},
-    {file = "platformdirs-4.2.2.tar.gz", hash = "sha256:38b7b51f512eed9e84a22788b4bce1de17c0adb134d6becb09836e37d8654cd3"},
+    {file = "platformdirs-4.3.2-py3-none-any.whl", hash = "sha256:eb1c8582560b34ed4ba105009a4badf7f6f85768b30126f351328507b2beb617"},
+    {file = "platformdirs-4.3.2.tar.gz", hash = "sha256:9e5e27a08aa095dd127b9f2e764d74254f482fef22b0970773bfba79d091ab8c"},
 ]
 
 [package.extras]
-docs = ["furo (>=2023.9.10)", "proselint (>=0.13)", "sphinx (>=7.2.6)", "sphinx-autodoc-typehints (>=1.25.2)"]
-test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=7.4.3)", "pytest-cov (>=4.1)", "pytest-mock (>=3.12)"]
-type = ["mypy (>=1.8)"]
+docs = ["furo (>=2024.8.6)", "proselint (>=0.14)", "sphinx (>=8.0.2)", "sphinx-autodoc-typehints (>=2.4)"]
+test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=8.3.2)", "pytest-cov (>=5)", "pytest-mock (>=3.14)"]
+type = ["mypy (>=1.11.2)"]
 
 [[package]]
 name = "pluggy"
@@ -543,13 +543,13 @@ files = [
 
 [[package]]
 name = "pytest"
-version = "8.3.2"
+version = "8.3.3"
 description = "pytest: simple powerful testing with Python"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "pytest-8.3.2-py3-none-any.whl", hash = "sha256:4ba08f9ae7dcf84ded419494d229b48d0903ea6407b030eaec46df5e6a73bba5"},
-    {file = "pytest-8.3.2.tar.gz", hash = "sha256:c132345d12ce551242c87269de812483f5bcc87cdbb4722e48487ba194f9fdce"},
+    {file = "pytest-8.3.3-py3-none-any.whl", hash = "sha256:a6853c7375b2663155079443d2e45de913a911a11d669df02a50814944db57b2"},
+    {file = "pytest-8.3.3.tar.gz", hash = "sha256:70b98107bd648308a7952b06e6ca9a50bc660be218d53c257cc1fc94fda10181"},
 ]
 
 [package.dependencies]
@@ -792,13 +792,13 @@ files = [
 
 [[package]]
 name = "urllib3"
-version = "2.2.2"
+version = "2.2.3"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "urllib3-2.2.2-py3-none-any.whl", hash = "sha256:a448b2f64d686155468037e1ace9f2d2199776e17f0a46610480d311f73e3472"},
-    {file = "urllib3-2.2.2.tar.gz", hash = "sha256:dd505485549a7a552833da5e6063639d0d177c04f23bc3864e41e5dc5f612168"},
+    {file = "urllib3-2.2.3-py3-none-any.whl", hash = "sha256:ca899ca043dcb1bafa3e262d73aa25c465bfb49e0bd9dd5d59f1d0acba2f8fac"},
+    {file = "urllib3-2.2.3.tar.gz", hash = "sha256:e7d814a81dad81e6caf2ec9fdedb284ecc9c73076b62654547cc64ccdcae26e9"},
 ]
 
 [package.extras]
diff --git a/pyproject.toml b/pyproject.toml
index 43e07f1..1f2d5b3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "nillion-python-helpers"
-version = "0.3.0"
+version = "0.3.1"
 description = ""
 authors = ["José Cabrero-Holgueras <jose.cabrero@nillion.com>"]
 readme = "README.md"