chore: bump version

Author: sparfenyuk

README.md

@@ -256,7 +256,8 @@ services:
 ## Command line arguments
 
 ```bash
-usage: mcp-proxy [-h] [-H KEY VALUE] [-e KEY VALUE] [--pass-environment | --no-pass-environment] [--sse-port SSE_PORT] [--sse-host SSE_HOST]
+usage: mcp-proxy [-h] [-H KEY VALUE] [-e KEY VALUE] [--cwd CWD] [--pass-environment | --no-pass-environment] [--debug | --no-debug] [--port PORT]
+                 [--host HOST] [--stateless | --no-stateless] [--sse-port SSE_PORT] [--sse-host SSE_HOST]
                  [--allow-origin ALLOW_ORIGIN [ALLOW_ORIGIN ...]]
                  [command_or_url] [args ...]
 
@@ -269,20 +270,24 @@ options:
   -h, --help            show this help message and exit
 
 SSE client options:
-  -H KEY VALUE, --headers KEY VALUE
+  -H, --headers KEY VALUE
                         Headers to pass to the SSE server. Can be used multiple times.
 
 stdio client options:
   args                  Any extra arguments to the command to spawn the server
-  -e KEY VALUE, --env KEY VALUE
-                        Environment variables used when spawning the server. Can be used multiple times.
+  -e, --env KEY VALUE   Environment variables used when spawning the server. Can be used multiple times.
+  --cwd CWD             The working directory to use when spawning the process.
   --pass-environment, --no-pass-environment
                         Pass through all environment variables when spawning the server.
   --debug, --no-debug   Enable debug mode with detailed logging output.
 
 SSE server options:
-  --port MCP_PORT   Port to expose an MCP server on. Default is a random port
-  --host MCP_HOST   Host to expose an MCP server on. Default is 127.0.0.1
+  --port PORT           Port to expose an SSE server on. Default is a random port
+  --host HOST           Host to expose an SSE server on. Default is 127.0.0.1
+  --stateless, --no-stateless
+                        Enable stateless mode for streamable http transports. Default is False
+  --sse-port SSE_PORT   (deprecated) Same as --port
+  --sse-host SSE_HOST   (deprecated) Same as --host
   --allow-origin ALLOW_ORIGIN [ALLOW_ORIGIN ...]
                         Allowed origins for the SSE server. Can be used multiple times. Default is no CORS allowed.
 

pyproject.toml

@@ -25,12 +25,9 @@ classifiers = [
     "Topic :: Utilities",
     "Typing :: Typed",
 ]
-version = "0.5.1"
+version = "0.6.0"
 requires-python = ">=3.10"
-dependencies = [
-    "mcp>=1.8.0,<2.0.0",
-    "uvicorn>=0.34.0"
-]
+dependencies = ["mcp>=1.8.0,<2.0.0", "uvicorn>=0.34.0"]
 
 [build-system]
 requires = ["setuptools"]

src/mcp_proxy/__main__.py

@@ -18,6 +18,7 @@
 from .mcp_server import MCPServerSettings, run_mcp_server
 from .sse_client import run_sse_client
 
+# Deprecated env var. Here for backwards compatibility.
 SSE_URL: t.Final[str | None] = os.getenv(
     "SSE_URL",
     None,
@@ -117,12 +118,12 @@ def main() -> None:
         "--sse-port",
         type=int,
         default=0,
-        help="Port to expose an SSE server on. Default is a random port",
+        help="(deprecated) Same as --port",
     )
     mcp_server_group.add_argument(
         "--sse-host",
         default="127.0.0.1",
-        help="Host to expose an SSE server on. Default is 127.0.0.1",
+        help="(deprecated) Same as --host",
     )
     mcp_server_group.add_argument(
         "--allow-origin",

src/mcp_proxy/mcp_server.py

@@ -45,6 +45,7 @@ def create_starlette_app(
     debug: bool = False,
 ) -> Starlette:
     """Create a Starlette application that can serve the mcp server with SSE or Streamable http."""
+    logger.debug("Creating Starlette app with stateless: %s and debug: %s", stateless, debug)
     # record the last activity of api
     status = {
         "api_last_activity": datetime.now(timezone.utc).isoformat(),
@@ -147,6 +148,7 @@ async def run_mcp_server(
         # Bind request handling to MCP server
         starlette_app = create_starlette_app(
             mcp_server,
+            stateless=mcp_settings.stateless,
             allow_origins=mcp_settings.allow_origins,
             debug=(mcp_settings.log_level == "DEBUG"),
         )