diff --git a/.env.example b/.env.example
index 831e431..90574ee 100644
--- a/.env.example
+++ b/.env.example
@@ -20,10 +20,17 @@ AMQP_GLOBAL_ENABLED=false
 
 WEBHOOK_URL=https://webhook.site/2e6af2fa-6b04-497f-b4a1-13a905728d83
 
+# Proxy Configuration
+PROXY_PROTOCOL=http
+PROXY_HOST=proxy.empresa.com
+PROXY_PORT=8080
+PROXY_USERNAME=usuario
+PROXY_PASSWORD=senha
+
 # Minio Configuration
 MINIO_ENABLED=true
 MINIO_ENDPOINT=localhost:9000
 MINIO_ACCESS_KEY=minioadmin
 MINIO_SECRET_KEY=minioadmin
 MINIO_BUCKET=evolution-media
-MINIO_USE_SSL=false
\ No newline at end of file
+MINIO_USE_SSL=false
diff --git a/docs/wiki/fundamentos/configuration.md b/docs/wiki/fundamentos/configuration.md
index 35460c0..385c6d8 100644
--- a/docs/wiki/fundamentos/configuration.md
+++ b/docs/wiki/fundamentos/configuration.md
@@ -436,7 +436,23 @@ MINIO_REGION=us-east-1
 
 ## Proxy
 
-Configuração de proxy HTTP para instâncias WhatsApp.
+Configuração de proxy para instâncias WhatsApp.
+
+O protocolo pode ser definido explicitamente com `PROXY_PROTOCOL`.
+Valores suportados:
+- `http`
+- `https`
+- `socks5`
+
+Se omitido, o Evolution GO tentará inferir o protocolo a partir da porta e usará `http` como padrão.
+
+### PROXY_PROTOCOL
+
+Protocolo do proxy.
+
+```env
+PROXY_PROTOCOL=http
+```
 
 ### PROXY_HOST
 
diff --git a/docs/wiki/guias-api/api-instances.md b/docs/wiki/guias-api/api-instances.md
index 946b15f..4e88110 100644
--- a/docs/wiki/guias-api/api-instances.md
+++ b/docs/wiki/guias-api/api-instances.md
@@ -514,7 +514,14 @@ curl -X DELETE "http://localhost:4000/instance/delete/vendas" \
 
 ## Configurar Proxy
 
-Configura proxy HTTP para a instância.
+Configura proxy para a instância.
+
+O campo `protocol` é opcional. Valores suportados:
+- `http`
+- `https`
+- `socks5`
+
+Se omitido, o Evolution GO tentará inferir o protocolo a partir da porta e usará `http` como padrão.
 
 ### Endpoint
 ```
@@ -530,6 +537,7 @@ apikey: SUA-GLOBAL-API-KEY
 ### Body
 ```json
 {
+  "protocol": "http",
   "host": "proxy.exemplo.com",
   "port": "8080",
   "username": "usuario",
@@ -542,6 +550,7 @@ apikey: SUA-GLOBAL-API-KEY
 {
   "message": "success",
   "data": {
+    "protocol": "http",
     "host": "proxy.exemplo.com",
     "port": "8080",
     "hasAuth": true
@@ -555,6 +564,7 @@ curl -X POST "http://localhost:4000/instance/proxy/vendas" \
   -H "Content-Type: application/json" \
   -H "apikey: SUA-GLOBAL-API-KEY" \
   -d '{
+    "protocol": "http",
     "host": "proxy.exemplo.com",
     "port": "8080",
     "username": "usuario",
diff --git a/docs/wiki/referencia/environment-variables.md b/docs/wiki/referencia/environment-variables.md
index a1abf27..a0eff64 100644
--- a/docs/wiki/referencia/environment-variables.md
+++ b/docs/wiki/referencia/environment-variables.md
@@ -139,6 +139,7 @@ MINIO_REGION=us-east-1
 
 | Variável | Descrição |
 |----------|-----------|
+| `PROXY_PROTOCOL` | Protocolo do proxy (`http`, `https`, `socks5`) |
 | `PROXY_HOST` | Hostname do proxy |
 | `PROXY_PORT` | Porta do proxy |
 | `PROXY_USERNAME` | Usuário (opcional) |
@@ -146,6 +147,7 @@ MINIO_REGION=us-east-1
 
 **Exemplo:**
 ```env
+PROXY_PROTOCOL=http
 PROXY_HOST=proxy.empresa.com
 PROXY_PORT=8080
 PROXY_USERNAME=usuario
diff --git a/pkg/config/config.go b/pkg/config/config.go
index a7a540a..b67e5c7 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -48,6 +48,7 @@ type Config struct {
 	WhatsappVersionMinor int
 	WhatsappVersionPatch int
 	ProxyHost            string
+	ProxyProtocol        string
 	ProxyPort            string
 	ProxyUsername        string
 	ProxyPassword        string
@@ -266,6 +267,7 @@ func Load() *Config {
 	whatsappVersionPatch := os.Getenv(config_env.WHATSAPP_VERSION_PATCH)
 
 	proxyHost := os.Getenv(config_env.PROXY_HOST)
+	proxyProtocol := os.Getenv(config_env.PROXY_PROTOCOL)
 	proxyPort := os.Getenv(config_env.PROXY_PORT)
 	proxyUsername := os.Getenv(config_env.PROXY_USERNAME)
 	proxyPassword := os.Getenv(config_env.PROXY_PASSWORD)
@@ -366,6 +368,7 @@ func Load() *Config {
 		WhatsappVersionMinor: minor,
 		WhatsappVersionPatch: patch,
 		ProxyHost:            proxyHost,
+		ProxyProtocol:        proxyProtocol,
 		ProxyPort:            proxyPort,
 		ProxyUsername:        proxyUsername,
 		ProxyPassword:        proxyPassword,
diff --git a/pkg/config/env/env.go b/pkg/config/env/env.go
index 0fbd936..f7e0ece 100644
--- a/pkg/config/env/env.go
+++ b/pkg/config/env/env.go
@@ -34,6 +34,7 @@ const (
 	WHATSAPP_VERSION_MINOR  = "WHATSAPP_VERSION_MINOR"
 	WHATSAPP_VERSION_PATCH  = "WHATSAPP_VERSION_PATCH"
 	PROXY_HOST              = "PROXY_HOST"
+	PROXY_PROTOCOL          = "PROXY_PROTOCOL"
 	PROXY_PORT              = "PROXY_PORT"
 	PROXY_USERNAME          = "PROXY_USERNAME"
 	PROXY_PASSWORD          = "PROXY_PASSWORD"
diff --git a/pkg/instance/handler/instance_handler.go b/pkg/instance/handler/instance_handler.go
index ebf8406..3d7c71a 100644
--- a/pkg/instance/handler/instance_handler.go
+++ b/pkg/instance/handler/instance_handler.go
@@ -9,6 +9,7 @@ import (
 	config "github.com/EvolutionAPI/evolution-go/pkg/config"
 	instance_model "github.com/EvolutionAPI/evolution-go/pkg/instance/model"
 	instance_service "github.com/EvolutionAPI/evolution-go/pkg/instance/service"
+	"github.com/EvolutionAPI/evolution-go/pkg/utils"
 )
 
 type InstanceHandler interface {
@@ -449,6 +450,7 @@ func (i *instanceHandler) SetProxy(ctx *gin.Context) {
 	}
 
 	responseData := gin.H{
+		"protocol": utils.NormalizeProxyProtocol(data.Protocol, data.Port),
 		"host":    data.Host,
 		"port":    data.Port,
 		"hasAuth": data.Username != "" && data.Password != "",
diff --git a/pkg/instance/service/instance_service.go b/pkg/instance/service/instance_service.go
index 32d831e..25831fc 100644
--- a/pkg/instance/service/instance_service.go
+++ b/pkg/instance/service/instance_service.go
@@ -18,6 +18,7 @@ import (
 	instance_repository "github.com/EvolutionAPI/evolution-go/pkg/instance/repository"
 	event_types "github.com/EvolutionAPI/evolution-go/pkg/internal/event_types"
 	logger_wrapper "github.com/EvolutionAPI/evolution-go/pkg/logger"
+	"github.com/EvolutionAPI/evolution-go/pkg/utils"
 	whatsmeow_service "github.com/EvolutionAPI/evolution-go/pkg/whatsmeow/service"
 	"go.mau.fi/whatsmeow"
 	"go.mau.fi/whatsmeow/types"
@@ -55,6 +56,7 @@ type instances struct {
 }
 
 type ProxyConfig struct {
+	Protocol string `json:"protocol,omitempty"`
 	Port     string `json:"port"`
 	Password string `json:"password"`
 	Username string `json:"username"`
@@ -101,6 +103,7 @@ type PairReturnStruct struct {
 }
 
 type SetProxyStruct struct {
+	Protocol string `json:"protocol,omitempty"`
 	Host     string `json:"host" validate:"required"`
 	Port     string `json:"port" validate:"required"`
 	Username string `json:"username"`
@@ -152,6 +155,10 @@ func (i *instances) ensureClientConnected(instanceId string) (*whatsmeow.Client,
 }
 
 func (i instances) Create(data *CreateStruct) (*instance_model.Instance, error) {
+	if data.Proxy != nil {
+		data.Proxy.Protocol = utils.NormalizeProxyProtocol(data.Proxy.Protocol, data.Proxy.Port)
+	}
+
 	proxyJson, err := json.Marshal(data.Proxy)
 	if err != nil {
 		return nil, err
@@ -562,6 +569,8 @@ func (i instances) SetProxy(id string, proxyConfig *ProxyConfig) error {
 		return fmt.Errorf("proxy port is required")
 	}
 
+	proxyConfig.Protocol = utils.NormalizeProxyProtocol(proxyConfig.Protocol, proxyConfig.Port)
+
 	// Convert proxy config to JSON
 	proxyJSON, err := json.Marshal(proxyConfig)
 	if err != nil {
@@ -578,7 +587,7 @@ func (i instances) SetProxy(id string, proxyConfig *ProxyConfig) error {
 		return err
 	}
 
-	i.loggerWrapper.GetLogger(id).LogInfo("[%s] Proxy configuration updated: %s:%s", id, proxyConfig.Host, proxyConfig.Port)
+	i.loggerWrapper.GetLogger(id).LogInfo("[%s] Proxy configuration updated: %s://%s:%s", id, proxyConfig.Protocol, proxyConfig.Host, proxyConfig.Port)
 
 	// Reconnect to apply proxy changes
 	go i.Reconnect(instance)
@@ -592,6 +601,7 @@ func (i instances) SetProxyFromStruct(id string, data *SetProxyStruct) error {
 	}
 
 	proxyConfig := &ProxyConfig{
+		Protocol: data.Protocol,
 		Host:     data.Host,
 		Port:     data.Port,
 		Username: data.Username,
diff --git a/pkg/utils/utils.go b/pkg/utils/utils.go
index cf1697f..63d42dd 100644
--- a/pkg/utils/utils.go
+++ b/pkg/utils/utils.go
@@ -3,6 +3,7 @@ package utils
 import (
 	"encoding/json"
 	"fmt"
+	"net"
 	"net/http"
 	"net/url"
 	"runtime"
@@ -253,6 +254,60 @@ func CreateSocks5Proxy(socks5Host, socks5Port, user, password string) (proxy.Dia
 	// }, nil
 }
 
+func NormalizeProxyProtocol(protocol, port string) string {
+	normalized := strings.ToLower(strings.TrimSpace(protocol))
+
+	switch normalized {
+	case "socks":
+		return "socks5"
+	case "http", "https", "socks5":
+		return normalized
+	}
+
+	switch strings.TrimSpace(port) {
+	case "1080", "2080":
+		return "socks5"
+	}
+
+	portNum, err := strconv.Atoi(strings.TrimSpace(port))
+	if err == nil && portNum >= 42000 && portNum <= 43000 {
+		return "socks5"
+	}
+
+	return "http"
+}
+
+func BuildProxyAddress(protocol, host, port, user, password string) (string, error) {
+	if strings.TrimSpace(host) == "" {
+		return "", fmt.Errorf("proxy host is required")
+	}
+
+	if strings.TrimSpace(port) == "" {
+		return "", fmt.Errorf("proxy port is required")
+	}
+
+	normalizedProtocol := NormalizeProxyProtocol(protocol, port)
+
+	if normalizedProtocol != "http" && normalizedProtocol != "https" && normalizedProtocol != "socks5" {
+		return "", fmt.Errorf("unsupported proxy protocol %q", protocol)
+	}
+
+	proxyURL := &url.URL{
+		Scheme: normalizedProtocol,
+		Host:   net.JoinHostPort(strings.TrimSpace(host), strings.TrimSpace(port)),
+	}
+
+	if user != "" {
+		if password != "" {
+			proxyURL.User = url.UserPassword(user, password)
+		} else {
+			proxyURL.User = url.User(user)
+		}
+	}
+
+	return proxyURL.String(), nil
+}
+
 func UpdateUserInfo(values interface{}, field string, value string) interface{} {
 	v, ok := values.(Values)
 	if !ok {
diff --git a/pkg/whatsmeow/service/whatsmeow.go b/pkg/whatsmeow/service/whatsmeow.go
index 6af7174..aa0d174 100644
--- a/pkg/whatsmeow/service/whatsmeow.go
+++ b/pkg/whatsmeow/service/whatsmeow.go
@@ -141,6 +141,7 @@ type UserCollection struct {
 }
 
 type ProxyConfig struct {
+	Protocol string `json:"protocol,omitempty"`
 	Host     string `json:"host"`
 	Password string `json:"password"`
 	Port     string `json:"port"`
@@ -399,6 +400,7 @@ func (w whatsmeowService) StartClient(cd *ClientData) {
 		}
 
 		proxyHost := proxyConfig.Host
+		proxyProtocol := proxyConfig.Protocol
 		proxyPort := proxyConfig.Port
 		proxyUsername := proxyConfig.Username
 		proxyPassword := proxyConfig.Password
@@ -411,6 +413,10 @@ func (w whatsmeowService) StartClient(cd *ClientData) {
 			proxyPort = w.config.ProxyPort
 		}
 
+		if proxyConfig.Protocol == "" {
+			proxyProtocol = w.config.ProxyProtocol
+		}
+
 		if proxyConfig.Username == "" {
 			proxyUsername = w.config.ProxyUsername
 		}
@@ -419,12 +425,16 @@ func (w whatsmeowService) StartClient(cd *ClientData) {
 			proxyPassword = w.config.ProxyPassword
 		}
 
-		proxy, err := utils.CreateSocks5Proxy(proxyHost, proxyPort, proxyUsername, proxyPassword)
+		proxyAddress, err := utils.BuildProxyAddress(proxyProtocol, proxyHost, proxyPort, proxyUsername, proxyPassword)
 		if err != nil {
 			w.loggerWrapper.GetLogger(cd.Instance.Id).LogWarn("[%s] Proxy error, continuing without proxy: %v", cd.Instance.Id, err)
 		} else {
-			client.SetSOCKSProxy(proxy)
-			w.loggerWrapper.GetLogger(cd.Instance.Id).LogInfo("[%s] Proxy enabled", cd.Instance.Id)
+			err = client.SetProxyAddress(proxyAddress)
+			if err != nil {
+				w.loggerWrapper.GetLogger(cd.Instance.Id).LogWarn("[%s] Proxy error, continuing without proxy: %v", cd.Instance.Id, err)
+			} else {
+				w.loggerWrapper.GetLogger(cd.Instance.Id).LogInfo("[%s] Proxy enabled (%s)", cd.Instance.Id, utils.NormalizeProxyProtocol(proxyProtocol, proxyPort))
+			}
 		}
 	}
 
@@ -2035,7 +2045,21 @@ func (w whatsmeowService) StartInstance(instanceId string) error {
 	}
 
 	if instance.Proxy == "" && w.config.ProxyHost != "" && w.config.ProxyPort != "" && w.config.ProxyUsername != "" && w.config.ProxyPassword != "" {
-		instance.Proxy = fmt.Sprintf(`{"host": "%s", "port": "%s", "username": "%s", "password": "%s"}`, w.config.ProxyHost, w.config.ProxyPort, w.config.ProxyUsername, w.config.ProxyPassword)
+		proxyConfig := ProxyConfig{
+			Protocol: utils.NormalizeProxyProtocol(w.config.ProxyProtocol, w.config.ProxyPort),
+			Host:     w.config.ProxyHost,
+			Port:     w.config.ProxyPort,
+			Username: w.config.ProxyUsername,
+			Password: w.config.ProxyPassword,
+		}
+
+		proxyJSON, err := json.Marshal(proxyConfig)
+		if err != nil {
+			w.loggerWrapper.GetLogger(instanceId).LogError("[%s] Failed to marshal proxy config: %v", instanceId, err)
+			return err
+		}
+
+		instance.Proxy = string(proxyJSON)
 
 		err = w.instanceRepository.UpdateProxy(instance.Id, instance.Proxy)
 		if err != nil {