diff --git a/.env.example b/.env.example
index 36dc54c..c995ebf 100644
--- a/.env.example
+++ b/.env.example
@@ -13,14 +13,6 @@ OPENAI_API_KEY=your_openai_key_here # https://platform.openai.com/api-keys
 ALPHAADVANTAGE_API_KEY=your_alphavantage_key_here  # https://www.alphavantage.co/support/#api-key
 JINA_API_KEY=your_jina_key_here # https://jina.ai/
 
-# MCP Service Host Ports (exposed on host machine)
-# Container always uses 8000-8003 internally
-# Change these if you need different ports on your host
-MATH_HTTP_PORT=8000
-SEARCH_HTTP_PORT=8001
-TRADE_HTTP_PORT=8002
-GETPRICE_HTTP_PORT=8003
-
 # API Server Port (exposed on host machine for REST API)
 # Container ALWAYS uses port 8080 internally (hardcoded in entrypoint.sh)
 # This variable ONLY controls the host port mapping (host:API_PORT -> container:8080)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2041b80..1481a4d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,12 +8,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Changed
-- **Simplified Configuration** - Removed unnecessary environment variables
+- **Simplified Configuration** - Removed unnecessary environment variables and port mappings
   - Removed `RUNTIME_ENV_PATH` (API dynamically manages runtime configs)
   - Removed `API_PORT` from container environment (only used for host port mapping)
-  - Container always uses port 8080 internally (hardcoded in entrypoint.sh)
-  - API_PORT in .env only controls host-side port mapping
-  - Reduces configuration complexity for new deployments
+  - Removed MCP service port configuration (MATH_HTTP_PORT, SEARCH_HTTP_PORT, TRADE_HTTP_PORT, GETPRICE_HTTP_PORT)
+  - MCP services use fixed internal ports (8000-8003) and are no longer exposed to host
+  - Container always uses port 8080 internally for API (hardcoded in entrypoint.sh)
+  - Only API port (8080) and web dashboard (8888) are exposed to host
+  - Reduces configuration complexity and attack surface for new deployments
 
 ## [0.3.0] - 2025-10-31
 
diff --git a/CLAUDE.md b/CLAUDE.md
index f716659..73d1caa 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -20,7 +20,6 @@ cp .env.example .env
 # Edit .env and set:
 # - OPENAI_API_BASE, OPENAI_API_KEY
 # - ALPHAADVANTAGE_API_KEY, JINA_API_KEY
-# - MCP service ports (default: 8000-8003)
 # - AGENT_MAX_STEP (default: 30)
 ```
 
@@ -40,11 +39,8 @@ cd agent_tools
 python start_mcp_services.py
 cd ..
 
-# Services run on ports defined in .env:
-# - MATH_HTTP_PORT (default: 8000)
-# - SEARCH_HTTP_PORT (default: 8001)
-# - TRADE_HTTP_PORT (default: 8002)
-# - GETPRICE_HTTP_PORT (default: 8003)
+# MCP services use fixed internal ports (8000-8003)
+# These are not exposed to the host and should not be changed
 ```
 
 ### Docker Deployment
diff --git a/README.md b/README.md
index 527f93e..60b2aa4 100644
--- a/README.md
+++ b/README.md
@@ -291,11 +291,6 @@ OPENAI_API_KEY=your_openai_key
 ALPHAADVANTAGE_API_KEY=your_alpha_vantage_key
 JINA_API_KEY=your_jina_api_key
 
-# 🌐 Service Port Configuration
-MATH_HTTP_PORT=8000
-SEARCH_HTTP_PORT=8001
-TRADE_HTTP_PORT=8002
-GETPRICE_HTTP_PORT=8003
 # 🧠 AI Agent Configuration
 AGENT_MAX_STEP=30             # Maximum reasoning steps
 ```
diff --git a/docker-compose.yml b/docker-compose.yml
index 804a720..8f1d385 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -18,21 +18,10 @@ services:
       - ALPHAADVANTAGE_API_KEY=${ALPHAADVANTAGE_API_KEY}
       - JINA_API_KEY=${JINA_API_KEY}
 
-      # MCP Service Ports (fixed internally)
-      - MATH_HTTP_PORT=8000
-      - SEARCH_HTTP_PORT=8001
-      - TRADE_HTTP_PORT=8002
-      - GETPRICE_HTTP_PORT=8003
-
       # Agent Configuration
       - AGENT_MAX_STEP=${AGENT_MAX_STEP:-30}
     ports:
-      # MCP service ports (internal)
-      - "${MATH_HTTP_PORT:-8000}:8000"
-      - "${SEARCH_HTTP_PORT:-8001}:8001"
-      - "${TRADE_HTTP_PORT:-8002}:8002"
-      - "${GETPRICE_HTTP_PORT:-8003}:8003"
-      # API server port (primary interface)
+      # API server port (primary interface for external access)
       - "${API_PORT:-8080}:8080"
       # Web dashboard
       - "${WEB_HTTP_PORT:-8888}:8888"