Server API

The main MCP server implementation and configuration.

Server Configuration

The server can be configured using environment variables or command-line arguments.

Environment Variables

Server Configuration Environment Variables

Variable	Default	Description
ZSCALER_MCP_SERVICES	All services	Comma-separated list of services to enable
ZSCALER_MCP_TRANSPORT	stdio	Transport method (stdio, sse, streamable-http)
ZSCALER_MCP_DEBUG	false	Enable debug logging
ZSCALER_MCP_HOST	127.0.0.1	Host for HTTP transports
ZSCALER_MCP_PORT	8000	Port for HTTP transports

Command Line Arguments

Server Command Line Arguments

Argument	Default	Description
--services	All services	Comma-separated list of services to enable
--transport	stdio	Transport method (stdio, sse, streamable-http)
--debug	false	Enable debug logging
--host	127.0.0.1	Host for HTTP transports
--port	8000	Port for HTTP transports

Transport Methods

The server supports three transport methods:

Stdio Transport

Default transport method using standard input/output for communication.

from zscaler_mcp.server import main
main()

SSE Transport

Server-Sent Events transport for web-based clients.

from zscaler_mcp.server import main
main(transport="sse", host="0.0.0.0", port=8000)

Streamable HTTP Transport

HTTP-based transport with streaming support.

from zscaler_mcp.server import main
main(transport="streamable-http", host="0.0.0.0", port=8000)