diff --git a/cmd/servicechecker/main.go b/cmd/servicechecker/main.go
index 26470b1..30a991e 100644
--- a/cmd/servicechecker/main.go
+++ b/cmd/servicechecker/main.go
@@ -117,60 +117,61 @@ func main() {
 		l.Info(ctx, fmt.Sprintf("check %#+v", check))
 		for _, task := range check.Tasks {
 			l.Info(ctx, fmt.Sprintf("task %#+v", task))
-			c, ok := clients[task.Type]
-			if !ok {
-				l.Error(ctx, fmt.Sprintf("unknown client %s", task.Type))
-				continue
-			}
-
-			pkg, svc, mth := grpcconn.ServiceMethod(task.Endpoint)
-			pdesc, err := pfiles.FindDescriptorByName(protoreflect.FullName(pkg + "." + svc))
-			if err != nil {
-				l.Error(ctx, "failed to find service "+pkg+"."+svc)
-				continue
-			}
-
-			sdesc, ok := pdesc.(protoreflect.ServiceDescriptor)
-			if !ok {
-				l.Error(ctx, "failed to find service "+pkg+"."+svc)
-				continue
-			}
-
-			mdesc := sdesc.Methods().ByName(protoreflect.Name(mth))
-			if mdesc == nil {
-				l.Error(ctx, "failed to find method "+mth)
-				continue
-			}
-
-			req := dynamicpb.NewMessageType(mdesc.Input()).New()
-			rsp := dynamicpb.NewMessageType(mdesc.Output()).New()
-
-			if err = jsonpbcodec.NewCodec().Unmarshal([]byte(task.Data), req); err != nil {
-				l.Error(ctx, "failed to unmarshal", err)
-				continue
-			}
-
-			treq := c.NewRequest(pkg, svc+"."+mth, req)
-
-			sch.NewJob(time.Duration(check.Interval), func() {
-				labels := []string{"check", check.Name, "task", task.Name, "service", svc, "endpoint", mth}
-				m.Counter(semconv.ClientRequestInflight, labels...).Inc()
-				ts := time.Now()
-				l.Info(ctx, fmt.Sprintf("try to call %s.%s via %s", svc, mth, task.Addr))
-				err = grpcconn.Call(ctx, l, c, task.Addr, time.Duration(task.Timeout),
-					treq,
-					rsp)
-				te := time.Since(ts)
-				m.Summary(semconv.ClientRequestLatencyMicroseconds, labels...).Update(te.Seconds())
-				m.Histogram(semconv.ClientRequestDurationSeconds, labels...).Update(te.Seconds())
-				m.Counter(semconv.ClientRequestInflight, labels...).Dec()
-				if err != nil {
-					m.Counter(semconv.ClientRequestTotal, append(labels, "status", "failure")...).Inc()
-				} else {
-					m.Counter(semconv.ClientRequestTotal, append(labels, "status", "success")...).Inc()
+			if task.GRPC != nil {
+				c, ok := clients["grpc"]
+				if !ok {
+					l.Error(ctx, fmt.Sprintf("unknown client %s", "grpc"))
+					continue
 				}
-			})
 
+				pkg, svc, mth := grpcconn.ServiceMethod(task.GRPC.Endpoint)
+				pdesc, err := pfiles.FindDescriptorByName(protoreflect.FullName(pkg + "." + svc))
+				if err != nil {
+					l.Error(ctx, "failed to find service "+pkg+"."+svc)
+					continue
+				}
+
+				sdesc, ok := pdesc.(protoreflect.ServiceDescriptor)
+				if !ok {
+					l.Error(ctx, "failed to find service "+pkg+"."+svc)
+					continue
+				}
+
+				mdesc := sdesc.Methods().ByName(protoreflect.Name(mth))
+				if mdesc == nil {
+					l.Error(ctx, "failed to find method "+mth)
+					continue
+				}
+
+				req := dynamicpb.NewMessageType(mdesc.Input()).New()
+				rsp := dynamicpb.NewMessageType(mdesc.Output()).New()
+
+				if err = jsonpbcodec.NewCodec().Unmarshal([]byte(task.GRPC.Data), req); err != nil {
+					l.Error(ctx, "failed to unmarshal", err)
+					continue
+				}
+
+				treq := c.NewRequest(pkg, svc+"."+mth, req)
+
+				sch.NewJob(time.Duration(check.Interval), func() {
+					labels := []string{"check", check.Name, "task", task.Name, "service", svc, "endpoint", mth}
+					m.Counter(semconv.ClientRequestInflight, labels...).Inc()
+					ts := time.Now()
+					l.Info(ctx, fmt.Sprintf("try to call %s.%s via %s", svc, mth, task.GRPC.Addr))
+					err = grpcconn.Call(ctx, l, c, task.GRPC.Addr, time.Duration(task.Timeout),
+						treq,
+						rsp)
+					te := time.Since(ts)
+					m.Summary(semconv.ClientRequestLatencyMicroseconds, labels...).Update(te.Seconds())
+					m.Histogram(semconv.ClientRequestDurationSeconds, labels...).Update(te.Seconds())
+					m.Counter(semconv.ClientRequestInflight, labels...).Dec()
+					if err != nil {
+						m.Counter(semconv.ClientRequestTotal, append(labels, "status", "failure")...).Inc()
+					} else {
+						m.Counter(semconv.ClientRequestTotal, append(labels, "status", "success")...).Inc()
+					}
+				})
+			}
 		}
 	}
 
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 81ef84e..1f1708d 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -24,14 +24,33 @@ type Check struct {
 	Interval mtime.Duration `json:"interval,omitempty" yaml:"interval,omitempty"`
 }
 
+type HTTPConfig struct {
+	Endpoint string `json:"endpoint,omitempty" yaml:"endpoint,omitempty"`
+	Data     string `json:"data,omitempty" yaml:"data,omitempty"`
+	Addr     string `json:"addr,omitempty" yaml:"addr,omitempty"`
+	OpenAPI  string `json:"openapi,omitempty" yaml:"openapi,omitempty"`
+	Method   string `json:"method,omitempty" yaml:"method,omitempty"`
+}
+
+type GRPCConfig struct {
+	Endpoint string `json:"endpoint,omitempty" yaml:"endpoint,omitempty"`
+	Data     string `json:"data,omitempty" yaml:"data,omitempty"`
+	Addr     string `json:"addr,omitempty" yaml:"addr,omitempty"`
+	Protoset string `json:"protoset,omitempty" yaml:"protoset,omitempty"`
+}
+
+type GraphQLConfig struct {
+	Endpoint string `json:"endpoint,omitempty" yaml:"endpoint,omitempty"`
+	Data     string `json:"data,omitempty" yaml:"data,omitempty"`
+	Addr     string `json:"addr,omitempty" yaml:"addr,omitempty"`
+}
+
 type Task struct {
+	HTTP      *HTTPConfig    `json:"http,omitempty" yaml:"http,omitempty"`
+	GRPC      *GRPCConfig    `json:"grpc,omitempty" yaml:"grpc,omitempty"`
+	GraphQL   *GraphQLConfig `json:"graphql,omitempty" yaml:"graphql"`
 	TLSVerify *bool          `json:"tls_verify,omitempty" yaml:"tls_verify,omitempty"`
-	Endpoint  string         `json:"endpoint,omitempty" yaml:"endpoint,omitempty"`
 	Name      string         `json:"name,omitempty" yaml:"name,omitempty"`
-	Data      string         `json:"data,omitempty" yaml:"data,omitempty"`
-	Addr      string         `json:"addr,omitempty" yaml:"addr,omitempty"`
-	Type      string         `json:"type,omitempty" yaml:"type,omitempty"`
-	Protoset  string         `json:"protoset,omitempty" yaml:"protoset,omitempty"`
 	Timeout   mtime.Duration `json:"timeout,omitempty" yaml:"timeout,omitempty"`
 }