diff --git a/apps/blockchain-node/scripts/blockchain_simple.py b/apps/blockchain-node/scripts/blockchain_simple.py
index af9997a8..25b4b11f 100755
--- a/apps/blockchain-node/scripts/blockchain_simple.py
+++ b/apps/blockchain-node/scripts/blockchain_simple.py
@@ -36,8 +36,8 @@ def main():
             
             # Run the blockchain FastAPI app
             import uvicorn
-            logger.info("Starting blockchain FastAPI app on port 8545")
-            uvicorn.run(app, host="0.0.0.0", port=int(os.environ.get("BLOCKCHAIN_PORT", 8545)))
+            logger.info("Starting blockchain FastAPI app on port 8006")
+            uvicorn.run(app, host="0.0.0.0", port=int(os.environ.get("BLOCKCHAIN_PORT", 8006)))
             
         except ImportError as e:
             logger.error(f"Failed to import blockchain app: {e}")
@@ -121,8 +121,8 @@ def basic_blockchain_node():
         activity_thread = threading.Thread(target=blockchain_activity, daemon=True)
         activity_thread.start()
         
-        logger.info("Starting basic blockchain API on port 8545")
-        uvicorn.run(app, host="0.0.0.0", port=int(os.environ.get("BLOCKCHAIN_PORT", 8545)))
+        logger.info("Starting basic blockchain API on port 8006")
+        uvicorn.run(app, host="0.0.0.0", port=int(os.environ.get("BLOCKCHAIN_PORT", 8006)))
         
     except ImportError:
         # Fallback to simple heartbeat
diff --git a/apps/coordinator-api/src/app/agent_identity/wallet_adapter.py b/apps/coordinator-api/src/app/agent_identity/wallet_adapter.py
index e6c95735..50f129ef 100755
--- a/apps/coordinator-api/src/app/agent_identity/wallet_adapter.py
+++ b/apps/coordinator-api/src/app/agent_identity/wallet_adapter.py
@@ -253,7 +253,7 @@ class MultiChainWalletAdapter:
             },
             1000: {  # AITBC Mainnet
                 "chain_type": ChainType.AITBC,
-                "rpc_url": "http://localhost:8545",
+                "rpc_url": "http://localhost:8006",
                 "name": "AITBC Mainnet",
             },
         }
diff --git a/apps/coordinator-api/src/app/settlement/bridges/base.py b/apps/coordinator-api/src/app/settlement/bridges/base.py
index 6d960a26..90321c87 100755
--- a/apps/coordinator-api/src/app/settlement/bridges/base.py
+++ b/apps/coordinator-api/src/app/settlement/bridges/base.py
@@ -184,7 +184,7 @@ class BridgeMessageTooLargeError(BridgeError):
 class EthereumBridge(BridgeAdapter):
     """Ethereum settlement bridge implementation"""
     
-    def __init__(self, config: BridgeConfig, rpc_url: str = "http://localhost:8545"):
+    def __init__(self, config: BridgeConfig, rpc_url: str = "http://localhost:8006"):
         super().__init__(config)
         self.rpc_url = rpc_url
         self._web3_client = None
diff --git a/cli/core/config.py b/cli/core/config.py
index daaf7485..d7af6f50 100755
--- a/cli/core/config.py
+++ b/cli/core/config.py
@@ -75,7 +75,7 @@ def get_default_node_config() -> NodeConfig:
     """Get default node configuration for local development"""
     return NodeConfig(
         id="default-node",
-        endpoint="http://localhost:8545",
+        endpoint="http://localhost:8006",
         timeout=30,
         retry_count=3,
         max_connections=10
diff --git a/docs/apps/explorer/CLI_TOOLS.md b/docs/apps/explorer/CLI_TOOLS.md
index 17fde1a9..c6260bd6 100644
--- a/docs/apps/explorer/CLI_TOOLS.md
+++ b/docs/apps/explorer/CLI_TOOLS.md
@@ -435,7 +435,7 @@ aitbc blockchain remote --node https://node.aitbc.dev
 aitbc blockchain remote --explorer https://explorer.aitbc.dev
 
 # SSH tunnel for secure access
-aitbc blockchain tunnel --ssh user@server --port 8545
+aitbc blockchain tunnel --ssh user@server --port 8006
 ```
 
 ### Mobile Optimization
diff --git a/docs/deployment/SETUP.md b/docs/deployment/SETUP.md
index ed6f7924..9619db84 100644
--- a/docs/deployment/SETUP.md
+++ b/docs/deployment/SETUP.md
@@ -85,7 +85,7 @@ AITBC uses standard Linux system directories for runtime data:
 | Wallet API | 8003 | `http://localhost:8003/health` |
 | Exchange API | 8001 | `http://localhost:8001/api/health` |
 | Coordinator API | 8000 | `http://localhost:8011/health` |
-| Blockchain RPC | 8545 | `http://localhost:8545` |
+| Blockchain RPC | 8006 | `http://localhost:8006/health` |
 
 ## Management Commands
 
diff --git a/docs/infrastructure/README.md b/docs/infrastructure/README.md
index 715f453e..d3fb1009 100644
--- a/docs/infrastructure/README.md
+++ b/docs/infrastructure/README.md
@@ -32,7 +32,7 @@ This section documents the AITBC infrastructure components, runtime architecture
 
 #### Core Services
 - **Coordinator API**: Central orchestration (Port 8011)
-- **Blockchain Node**: Core blockchain (Port 8545) 
+- **Blockchain Node**: Core blockchain (Port 8006) 
 - **Exchange API**: Trading services (Port 8001)
 - **Wallet Service**: Wallet management (Port 8003)
 
diff --git a/docs/scenarios/47_cross_chain_atomic_swap.md b/docs/scenarios/47_cross_chain_atomic_swap.md
index 6b526a68..bf792a05 100644
--- a/docs/scenarios/47_cross_chain_atomic_swap.md
+++ b/docs/scenarios/47_cross_chain_atomic_swap.md
@@ -77,7 +77,7 @@ Before running this scenario, you must deploy the CrossChainAtomicSwap contract
 aitbc contract deploy \
   --name CrossChainAtomicSwap \
   --type atomic-swap \
-  --rpc-url http://localhost:8545 \
+  --rpc-url http://localhost:8006 \
   --password-file ~/.aitbc/wallets/mainnet-wallet.password
 
 # Deploy on destination chain
@@ -123,7 +123,7 @@ Lock tokens on source chain with hashlock and timelock:
 aitbc contract deploy \
   --name CrossChainAtomicSwap \
   --type atomic-swap \
-  --rpc-url http://localhost:8545 \
+  --rpc-url http://localhost:8006 \
   --password-file ~/.aitbc/wallets/mainnet-wallet.password
 
 # Call the initiateSwap method
@@ -131,7 +131,7 @@ aitbc contract call \
   --address <CONTRACT_ADDRESS> \
   --method initiateSwap \
   --params '{"swapId": "'"$SWAP_ID"'", "token": "AITBC", "amount": 1000, "participant": "aitbc1recipient", "hashlock": "'"$HASHLOCK"'", "timelock": 3600}' \
-  --rpc-url http://localhost:8545 \
+  --rpc-url http://localhost:8006 \
   --password-file ~/.aitbc/wallets/mainnet-wallet.password
 ```
 
@@ -180,7 +180,7 @@ aitbc contract call \
   --address <CONTRACT_ADDRESS> \
   --method completeSwap \
   --params '{"swapId": "'"$SWAP_ID"'", "secret": "'"$SECRET"'"}' \
-  --rpc-url http://localhost:8545 \
+  --rpc-url http://localhost:8006 \
   --password-file ~/.aitbc/wallets/mainnet-wallet.password
 
 # Counterparty completes with same secret on destination chain
@@ -222,7 +222,7 @@ aitbc contract call \
   --address <CONTRACT_ADDRESS> \
   --method refundSwap \
   --params '{"swapId": "'"$SWAP_ID"'"}' \
-  --rpc-url http://localhost:8545 \
+  --rpc-url http://localhost:8006 \
   --password-file ~/.aitbc/wallets/mainnet-wallet.password
 ```
 
diff --git a/docs/scenarios/TROUBLESHOOTING_GUIDE.md b/docs/scenarios/TROUBLESHOOTING_GUIDE.md
index ff10b5e7..f70fd591 100644
--- a/docs/scenarios/TROUBLESHOOTING_GUIDE.md
+++ b/docs/scenarios/TROUBLESHOOTING_GUIDE.md
@@ -428,7 +428,7 @@ env | grep AITBC
 ### Network Diagnostics
 ```bash
 # Check connectivity to blockchain node
-curl -X POST http://localhost:8545 -H "Content-Type: application/json" \
+curl -X POST http://localhost:8006 -H "Content-Type: application/json" \
   -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'
 
 # Check peer connections
diff --git a/packages/github/README.md b/packages/github/README.md
index e8d5fa34..779e48a3 100644
--- a/packages/github/README.md
+++ b/packages/github/README.md
@@ -196,7 +196,7 @@ sudo journalctl -u aitbc-node.service -f
 ## 🌐 **Network Configuration**
 
 ### **Default Ports**
-- **Node:** 30333 (P2P), 8545 (RPC)
+- **Node:** 30333 (P2P), 8006 (RPC)
 - **Coordinator:** 8000 (API)
 - **Marketplace:** 8001 (API)
 - **Explorer:** 3000 (Web), 3001 (API)
diff --git a/scripts/deployment/production-deploy.sh b/scripts/deployment/production-deploy.sh
index 21558028..ab9238b6 100755
--- a/scripts/deployment/production-deploy.sh
+++ b/scripts/deployment/production-deploy.sh
@@ -108,7 +108,7 @@ echo "========================"
 
 echo -e "${GREEN}✅ Localhost: ACTIVE${NC}"
 echo "   Status: Production ready"
-echo "   Agents: $(curl -s http://localhost:8545/health 2>/dev/null || echo "API not running")"
+echo "   Agents: $(curl -s http://localhost:8006/health 2>/dev/null || echo "API not running")"
 
 # Check aitbc1 status
 if ssh aitbc1 'cd /opt/aitbc && test -f data/agent_registry.json' 2>/dev/null; then
diff --git a/scripts/deployment/production-setup.sh b/scripts/deployment/production-setup.sh
index 8517ee6e..b3b9c02d 100755
--- a/scripts/deployment/production-setup.sh
+++ b/scripts/deployment/production-setup.sh
@@ -227,7 +227,7 @@ CHAIN_ID=1337
 CONSENSUS=proof_of_authority
 
 # Services
-BLOCKCHAIN_RPC_PORT=8545
+BLOCKCHAIN_RPC_PORT=8006
 MARKETPLACE_PORT=8002
 GPU_MARKETPLACE_PORT=8003
 MONITORING_PORT=9000
diff --git a/scripts/monitoring/dashboard.sh b/scripts/monitoring/dashboard.sh
index 37c1b819..9c180a9c 100755
--- a/scripts/monitoring/dashboard.sh
+++ b/scripts/monitoring/dashboard.sh
@@ -81,7 +81,7 @@ else
 fi
 
 # Check ports
-ports=("8545" "30303" "9090")
+ports=("8006" "30303" "9090")
 for port in "${ports[@]}"; do
     if netstat -tuln 2>/dev/null | grep -q ":$port "; then
         echo -e "${GREEN}✅ Port $port: OPEN${NC}"
diff --git a/tests/README.md b/tests/README.md
index e2ee33ec..42b5535d 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -317,7 +317,7 @@ export TEST_REDIS_URL="redis://localhost:6379/1"
 # Service URLs for integration tests
 export COORDINATOR_URL="http://localhost:8001"
 export WALLET_URL="http://localhost:8002"
-export BLOCKCHAIN_URL="http://localhost:8545"
+export BLOCKCHAIN_URL="http://localhost:8006"
 
 # Security test configuration
 export TEST_HSM_ENDPOINT="http://localhost:9999"