diff --git a/enervent-ctrl-go/coils.csv b/enervent-ctrl-go/coils.csv
index 131794e..be26d50 100644
--- a/enervent-ctrl-go/coils.csv
+++ b/enervent-ctrl-go/coils.csv
@@ -28,9 +28,9 @@
 27,-,-
 28,-,-
 29,-,-
-30,COIL_LTO_ON,Heat recycler state (running=1, stopped = 0)
+30,COIL_LTO_ON,Heat recycler state (running=1 stopped=0)
 31,-,-
-32,COIL_HEAT_ON,After heater element state (On = 1, Off = 0)
+32,COIL_HEAT_ON,After heater element state (On=1 Off=0)
 33,-,-
 34,-,-
 35,-,-
diff --git a/enervent-ctrl-go/main.go b/enervent-ctrl-go/main.go
index 2e72e40..a89df7c 100644
--- a/enervent-ctrl-go/main.go
+++ b/enervent-ctrl-go/main.go
@@ -1,15 +1,31 @@
 package main
 
 import (
-	"fmt"
+	"encoding/json"
+	"log"
+	"net/http"
 
 	"github.com/0ranki/enervent-ctrl/enervent-ctrl-go/pingvinKL"
 )
 
-func main() {
-	pingvin := pingvinKL.New()
-	pingvin.Update()
-	for i := 0; i < len(pingvin.Coils); i++ {
-		fmt.Println(pingvin.Coils[i].Symbol, pingvin.Coils[i].Value, pingvin.Coils[i].Description)
-	}
+var (
+	version = "0.0.2"
+	pingvin pingvinKL.PingvinKL
+)
+
+func coils(w http.ResponseWriter, r *http.Request) {
+	json.NewEncoder(w).Encode(pingvin.Coils)
+}
+
+func listen() {
+	log.Println("Starting pingvinAPI...")
+	http.HandleFunc("/api/v1/coils/", coils)
+	log.Fatal(http.ListenAndServe(":8888", nil))
+}
+
+func main() {
+	log.Println("enervent-ctrl version", version)
+	pingvin = pingvinKL.New()
+	pingvin.Update()
+	listen()
 }
diff --git a/enervent-ctrl-go/pingvinKL/pingvinKL.go b/enervent-ctrl-go/pingvinKL/pingvinKL.go
index c544669..dc53962 100644
--- a/enervent-ctrl-go/pingvinKL/pingvinKL.go
+++ b/enervent-ctrl-go/pingvinKL/pingvinKL.go
@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"log"
 	"os"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -13,15 +14,20 @@ import (
 
 // single coil data
 type pingvinCoil struct {
-	Symbol      string
-	Value       bool
-	Description string
-	Reserved    bool
+	Address     int    `json:"address"`
+	Symbol      string `json:"symbol"`
+	Value       bool   `json:"value"`
+	Description string `json:"description"`
+	Reserved    bool   `json:"reserved"`
 }
 
-func newCoil(symbol string, description string) pingvinCoil {
+func newCoil(address string, symbol string, description string) pingvinCoil {
+	addr, err := strconv.Atoi(address)
+	if err != nil {
+		log.Fatal("newCoil: Atoi:", err)
+	}
 	reserved := symbol == "-" && description == "-"
-	coil := pingvinCoil{symbol, false, description, reserved}
+	coil := pingvinCoil{addr, symbol, false, description, reserved}
 	return coil
 }
 
@@ -121,7 +127,7 @@ func New() PingvinKL {
 	pingvin.buslock = &sync.Mutex{}
 	coilData := readCsvLines("coils.csv")
 	for i := 0; i < len(coilData); i++ {
-		pingvin.Coils = append(pingvin.Coils, newCoil(coilData[i][1], coilData[i][2]))
+		pingvin.Coils = append(pingvin.Coils, newCoil(coilData[i][0], coilData[i][1], coilData[i][2]))
 	}
 	return pingvin
 }