diff --git a/core/config.go b/core/config.go
index efdf986..a1e2578 100644
--- a/core/config.go
+++ b/core/config.go
@@ -34,6 +34,7 @@ type InfoInterface interface {
 	GetName() string
 	GetCode() string
 	GetLogoPath() string
+	GetSecret() string
 }
 
 // Config struct.
@@ -195,6 +196,11 @@ func (t Info) GetLogoPath() string {
 	return t.LogoPath
 }
 
+// GetSecret returns secret.
+func (t Info) GetSecret() string {
+	return t.Secret
+}
+
 // IsSSLVerificationEnabled returns SSL verification flag (default is true).
 func (h *HTTPClientConfig) IsSSLVerificationEnabled() bool {
 	if h.SSLVerification == nil {
diff --git a/core/one_step_connection.go b/core/one_step_connection.go
new file mode 100644
index 0000000..1c073e7
--- /dev/null
+++ b/core/one_step_connection.go
@@ -0,0 +1,50 @@
+package core
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	retailcrm "github.com/retailcrm/api-client-go/v2"
+)
+
+// ConnectionConfig returns middleware for the one-step connection configuration route.
+func ConnectionConfig(registerURL string, scopes []string) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.AbortWithStatusJSON(http.StatusOK, retailcrm.ConnectionConfigResponse{
+			SuccessfulResponse: retailcrm.SuccessfulResponse{Success: true},
+			Scopes:             scopes,
+			RegisterURL:        registerURL,
+		})
+	}
+}
+
+// VerifyConnectRequest will verify ConnectRequest and place it into the "request" context field.
+func VerifyConnectRequest(secret string) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		connectReqData := c.PostForm("register")
+		if connectReqData == "" {
+			c.AbortWithStatusJSON(http.StatusOK, retailcrm.ErrorResponse{ErrorMessage: "No data provided"})
+			return
+		}
+
+		var r retailcrm.ConnectRequest
+		err := json.Unmarshal([]byte(connectReqData), &r)
+		if err != nil {
+			c.AbortWithStatusJSON(http.StatusOK, retailcrm.ErrorResponse{ErrorMessage: "Invalid JSON provided"})
+			return
+		}
+
+		if !r.Verify(secret) {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{})
+			return
+		}
+
+		c.Set("request", r)
+	}
+}
+
+// MustGetConnectRequest will extract retailcrm.ConnectRequest from the request context.
+func MustGetConnectRequest(c *gin.Context) retailcrm.ConnectRequest {
+	return c.MustGet("request").(retailcrm.ConnectRequest)
+}
diff --git a/core/one_step_connection_test.go b/core/one_step_connection_test.go
new file mode 100644
index 0000000..70b7af7
--- /dev/null
+++ b/core/one_step_connection_test.go
@@ -0,0 +1,166 @@
+package core
+
+import (
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	retailcrm "github.com/retailcrm/api-client-go/v2"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestMustGetConnectRequest_Success(t *testing.T) {
+	assert.Equal(t, retailcrm.ConnectRequest{}, MustGetConnectRequest(&gin.Context{
+		Keys: map[string]interface{}{
+			"request": retailcrm.ConnectRequest{},
+		},
+	}))
+}
+
+func TestMustGetConnectRequest_Failure(t *testing.T) {
+	assert.Panics(t, func() {
+		MustGetConnectRequest(&gin.Context{
+			Keys: map[string]interface{}{},
+		})
+	})
+	assert.Panics(t, func() {
+		MustGetConnectRequest(&gin.Context{})
+	})
+	assert.Panics(t, func() {
+		MustGetConnectRequest(nil)
+	})
+}
+
+func TestConnectionConfig(t *testing.T) {
+	scopes := []string{
+		"integration_read",
+		"integration_write",
+	}
+	registerURL := "https://example.com"
+	gin.SetMode(gin.ReleaseMode)
+	g := gin.New()
+	g.GET("/", ConnectionConfig(registerURL, scopes))
+
+	req, err := http.NewRequest(http.MethodGet, "/", nil)
+	require.NoError(t, err)
+
+	rr := httptest.NewRecorder()
+	g.ServeHTTP(rr, req)
+
+	var cc retailcrm.ConnectionConfigResponse
+	require.NoError(t, json.NewDecoder(rr.Body).Decode(&cc))
+
+	assert.Equal(t, http.StatusOK, rr.Code)
+	assert.Equal(t, retailcrm.ConnectionConfigResponse{
+		SuccessfulResponse: retailcrm.SuccessfulResponse{
+			Success: true,
+		},
+		Scopes:      scopes,
+		RegisterURL: registerURL,
+	}, cc)
+}
+
+func TestVerifyConnectRequest_NoData(t *testing.T) {
+	gin.SetMode(gin.ReleaseMode)
+	g := gin.New()
+	g.POST("/", VerifyConnectRequest("secret"))
+
+	req, err := http.NewRequest(http.MethodPost, "/", nil)
+	require.NoError(t, err)
+
+	rr := httptest.NewRecorder()
+	g.ServeHTTP(rr, req)
+
+	var resp retailcrm.ErrorResponse
+	require.NoError(t, json.NewDecoder(rr.Body).Decode(&resp))
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	assert.Equal(t, http.StatusOK, rr.Code)
+	assert.Equal(t, retailcrm.ErrorResponse{ErrorMessage: "No data provided"}, resp)
+}
+
+func TestVerifyConnectRequest_InvalidJSON(t *testing.T) {
+	gin.SetMode(gin.ReleaseMode)
+	g := gin.New()
+	g.POST("/", VerifyConnectRequest("secret"))
+
+	req, err := http.NewRequest(
+		http.MethodPost, "/", strings.NewReader(url.Values{"register": {"invalid json"}}.Encode()))
+	require.NoError(t, err)
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	rr := httptest.NewRecorder()
+	g.ServeHTTP(rr, req)
+
+	var resp retailcrm.ErrorResponse
+	require.NoError(t, json.NewDecoder(rr.Body).Decode(&resp))
+
+	assert.Equal(t, http.StatusOK, rr.Code)
+	assert.Equal(t, retailcrm.ErrorResponse{ErrorMessage: "Invalid JSON provided"}, resp)
+}
+
+func TestVerifyConnectRequest_InvalidToken(t *testing.T) {
+	gin.SetMode(gin.ReleaseMode)
+	g := gin.New()
+	g.POST("/", VerifyConnectRequest("secret"))
+
+	data, err := json.Marshal(retailcrm.ConnectRequest{
+		Token:  "token",
+		APIKey: "key",
+		URL:    "https://example.com",
+	})
+	require.NoError(t, err)
+
+	req, err := http.NewRequest(
+		http.MethodPost, "/", strings.NewReader(url.Values{"register": {string(data)}}.Encode()))
+	require.NoError(t, err)
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	rr := httptest.NewRecorder()
+	g.ServeHTTP(rr, req)
+
+	assert.Equal(t, http.StatusUnauthorized, rr.Code)
+	assert.Equal(t, "{}", rr.Body.String())
+}
+
+func TestVerifyConnectRequest_OK(t *testing.T) {
+	gin.SetMode(gin.ReleaseMode)
+	g := gin.New()
+	g.POST("/", VerifyConnectRequest("secret"), func(c *gin.Context) {
+		_ = MustGetConnectRequest(c)
+		c.AbortWithStatus(http.StatusCreated)
+	})
+
+	data, err := json.Marshal(retailcrm.ConnectRequest{
+		Token:  createConnectToken("key", "secret"),
+		APIKey: "key",
+		URL:    "https://example.com",
+	})
+	require.NoError(t, err)
+
+	req, err := http.NewRequest(
+		http.MethodPost, "/", strings.NewReader(url.Values{"register": {string(data)}}.Encode()))
+	require.NoError(t, err)
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	rr := httptest.NewRecorder()
+	g.ServeHTTP(rr, req)
+
+	assert.Equal(t, http.StatusCreated, rr.Code)
+}
+
+func createConnectToken(apiKey, secret string) string {
+	mac := hmac.New(sha256.New, []byte(secret))
+	if _, err := mac.Write([]byte(apiKey)); err != nil {
+		panic(err)
+	}
+	return hex.EncodeToString(mac.Sum(nil))
+}
diff --git a/go.mod b/go.mod
index e593180..4b51bb6 100644
--- a/go.mod
+++ b/go.mod
@@ -27,7 +27,7 @@ require (
 	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/op/go-logging v0.0.0-20160315200505-970db520ece7
 	github.com/pkg/errors v0.9.1
-	github.com/retailcrm/api-client-go/v2 v2.0.1
+	github.com/retailcrm/api-client-go/v2 v2.0.3
 	github.com/retailcrm/mg-transport-api-client-go v1.1.32
 	github.com/stretchr/testify v1.7.0
 	github.com/ugorji/go v1.2.6 // indirect
diff --git a/go.sum b/go.sum
index 34eb572..42274f1 100644
--- a/go.sum
+++ b/go.sum
@@ -251,6 +251,10 @@ github.com/prometheus/procfs v0.0.0-20190117184657-bf6a532e95b1/go.mod h1:c3At6R
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/retailcrm/api-client-go/v2 v2.0.1 h1:wyM0F1VTSJPO8PVEXB0u7s6ZEs0xRCnUu7YdQ1E4UZ8=
 github.com/retailcrm/api-client-go/v2 v2.0.1/go.mod h1:1yTZl9+gd3+/k0kAJe7sYvC+mL4fqMwIwtnSgSWZlkQ=
+github.com/retailcrm/api-client-go/v2 v2.0.2 h1:oFQycGqwcvfgW2JrbeWmPjxH7Wmh9j762c4FRxCDGNs=
+github.com/retailcrm/api-client-go/v2 v2.0.2/go.mod h1:1yTZl9+gd3+/k0kAJe7sYvC+mL4fqMwIwtnSgSWZlkQ=
+github.com/retailcrm/api-client-go/v2 v2.0.3 h1:7oKwOZgRLM7eEJUvFNhzfnyIJVomy80ffOEBdYpQRIs=
+github.com/retailcrm/api-client-go/v2 v2.0.3/go.mod h1:1yTZl9+gd3+/k0kAJe7sYvC+mL4fqMwIwtnSgSWZlkQ=
 github.com/retailcrm/mg-transport-api-client-go v1.1.32 h1:IBPltSoD5q2PPZJbNC/prK5F9rEVPXVx/ZzDpi7HKhs=
 github.com/retailcrm/mg-transport-api-client-go v1.1.32/go.mod h1:AWV6BueE28/6SCoyfKURTo4lF0oXYoOKmHTzehd5vAI=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=