diff --git a/beacon-chain/builder/BUILD.bazel b/beacon-chain/builder/BUILD.bazel
new file mode 100644
index 0000000000..229882c3fd
--- /dev/null
+++ b/beacon-chain/builder/BUILD.bazel
@@ -0,0 +1,22 @@
+load("@prysm//tools/go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "option.go",
+        "service.go",
+    ],
+    importpath = "github.com/prysmaticlabs/prysm/beacon-chain/builder",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//api/client/builder:go_default_library",
+        "//cmd/beacon-chain/flags:go_default_library",
+        "//consensus-types/primitives:go_default_library",
+        "//network:go_default_library",
+        "//network/authorization:go_default_library",
+        "//proto/engine/v1:go_default_library",
+        "//proto/prysm/v1alpha1:go_default_library",
+        "@com_github_pkg_errors//:go_default_library",
+        "@com_github_urfave_cli_v2//:go_default_library",
+    ],
+)
diff --git a/beacon-chain/builder/option.go b/beacon-chain/builder/option.go
new file mode 100644
index 0000000000..5dbba7d0e2
--- /dev/null
+++ b/beacon-chain/builder/option.go
@@ -0,0 +1,36 @@
+package builder
+
+import (
+	"github.com/prysmaticlabs/prysm/cmd/beacon-chain/flags"
+	"github.com/prysmaticlabs/prysm/network"
+	"github.com/prysmaticlabs/prysm/network/authorization"
+	"github.com/urfave/cli/v2"
+)
+
+type Option func(s *Service) error
+
+// FlagOptions for builder service flag configurations.
+func FlagOptions(c *cli.Context) ([]Option, error) {
+	endpoint := c.String(flags.MevRelayEndpoint.Name)
+	opts := []Option{
+		WithBuilderEndpoints(endpoint),
+	}
+	return opts, nil
+}
+
+// WithBuilderEndpoints sets the endpoint for the beacon chain builder service.
+func WithBuilderEndpoints(endpoint string) Option {
+	return func(s *Service) error {
+		s.cfg.builderEndpoint = covertEndPoint(endpoint)
+		return nil
+	}
+}
+
+func covertEndPoint(ep string) network.Endpoint {
+	return network.Endpoint{
+		Url: ep,
+		Auth: network.AuthorizationData{ // Auth is not used for builder.
+			Method: authorization.None,
+			Value:  "",
+		}}
+}
diff --git a/beacon-chain/builder/service.go b/beacon-chain/builder/service.go
new file mode 100644
index 0000000000..17369eb46e
--- /dev/null
+++ b/beacon-chain/builder/service.go
@@ -0,0 +1,77 @@
+package builder
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/api/client/builder"
+	types "github.com/prysmaticlabs/prysm/consensus-types/primitives"
+	"github.com/prysmaticlabs/prysm/network"
+	v1 "github.com/prysmaticlabs/prysm/proto/engine/v1"
+	ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
+)
+
+// BlockBuilder defines the interface for interacting with the block builder
+type BlockBuilder interface {
+	SubmitBlindedBlock(ctx context.Context, block *ethpb.SignedBlindedBeaconBlockBellatrix) (*v1.ExecutionPayload, error)
+	GetHeader(ctx context.Context, slot types.Slot, parentHash [32]byte, pubKey [48]byte) (*ethpb.SignedBuilderBid, error)
+	Status() error
+	RegisterValidator(ctx context.Context, reg *ethpb.SignedValidatorRegistrationV1) error
+}
+
+// config defines a config struct for dependencies into the service.
+type config struct {
+	builderEndpoint network.Endpoint
+}
+
+// Service defines a service that provides a client for interacting with the beacon chain and MEV relay network.
+type Service struct {
+	cfg *config
+	c   *builder.Client
+}
+
+// NewService instantiates a new service.
+func NewService(ctx context.Context, opts ...Option) (*Service, error) {
+	s := &Service{}
+	for _, opt := range opts {
+		if err := opt(s); err != nil {
+			return nil, err
+		}
+	}
+	if s.cfg.builderEndpoint.Url != "" {
+		c, err := builder.NewClient(s.cfg.builderEndpoint.Url)
+		if err != nil {
+			return nil, err
+		}
+		s.c = c
+	}
+	return s, nil
+}
+
+// Start initializes the service.
+func (*Service) Start() {}
+
+// Stop halts the service.
+func (*Service) Stop() error {
+	return nil
+}
+
+// SubmitBlindedBlock is currently a stub.
+func (*Service) SubmitBlindedBlock(context.Context, *ethpb.SignedBlindedBeaconBlockBellatrix) (*v1.ExecutionPayload, error) {
+	return nil, errors.New("not implemented")
+}
+
+// GetHeader is currently a stub.
+func (*Service) GetHeader(context.Context, types.Slot, [32]byte, [48]byte) (*ethpb.SignedBuilderBid, error) {
+	return nil, errors.New("not implemented")
+}
+
+// Status is currently a stub.
+func (*Service) Status() error {
+	return errors.New("not implemented")
+}
+
+// RegisterValidator is currently a stub.
+func (*Service) RegisterValidator(context.Context, *ethpb.SignedValidatorRegistrationV1) error {
+	return errors.New("not implemented")
+}
diff --git a/beacon-chain/node/BUILD.bazel b/beacon-chain/node/BUILD.bazel
index 7ef5ea56f9..c05b31e1bf 100644
--- a/beacon-chain/node/BUILD.bazel
+++ b/beacon-chain/node/BUILD.bazel
@@ -18,6 +18,7 @@ go_library(
         "//api/gateway:go_default_library",
         "//async/event:go_default_library",
         "//beacon-chain/blockchain:go_default_library",
+        "//beacon-chain/builder:go_default_library",
         "//beacon-chain/cache:go_default_library",
         "//beacon-chain/cache/depositcache:go_default_library",
         "//beacon-chain/db:go_default_library",
diff --git a/beacon-chain/node/node.go b/beacon-chain/node/node.go
index 8187b6fcbc..dde89c94f0 100644
--- a/beacon-chain/node/node.go
+++ b/beacon-chain/node/node.go
@@ -20,6 +20,7 @@ import (
 	apigateway "github.com/prysmaticlabs/prysm/api/gateway"
 	"github.com/prysmaticlabs/prysm/async/event"
 	"github.com/prysmaticlabs/prysm/beacon-chain/blockchain"
+	"github.com/prysmaticlabs/prysm/beacon-chain/builder"
 	"github.com/prysmaticlabs/prysm/beacon-chain/cache"
 	"github.com/prysmaticlabs/prysm/beacon-chain/cache/depositcache"
 	"github.com/prysmaticlabs/prysm/beacon-chain/db"
@@ -76,6 +77,7 @@ const debugGrpcMaxMsgSize = 1 << 27
 type serviceFlagOpts struct {
 	blockchainFlagOpts []blockchain.Option
 	powchainFlagOpts   []powchain.Option
+	builderOpts        []builder.Option
 }
 
 // BeaconNode defines a struct that handles the services running a random beacon chain
diff --git a/beacon-chain/node/options.go b/beacon-chain/node/options.go
index 4add468832..2bfdb59756 100644
--- a/beacon-chain/node/options.go
+++ b/beacon-chain/node/options.go
@@ -2,6 +2,7 @@ package node
 
 import (
 	"github.com/prysmaticlabs/prysm/beacon-chain/blockchain"
+	"github.com/prysmaticlabs/prysm/beacon-chain/builder"
 	"github.com/prysmaticlabs/prysm/beacon-chain/powchain"
 )
 
@@ -23,3 +24,11 @@ func WithPowchainFlagOptions(opts []powchain.Option) Option {
 		return nil
 	}
 }
+
+// WithBuilderFlagOptions includes functional options for the builder service related to CLI flags.
+func WithBuilderFlagOptions(opts []builder.Option) Option {
+	return func(bn *BeaconNode) error {
+		bn.serviceFlagOpts.builderOpts = opts
+		return nil
+	}
+}
diff --git a/cmd/beacon-chain/BUILD.bazel b/cmd/beacon-chain/BUILD.bazel
index 9696d754a8..2551aaf750 100644
--- a/cmd/beacon-chain/BUILD.bazel
+++ b/cmd/beacon-chain/BUILD.bazel
@@ -15,6 +15,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/cmd/beacon-chain",
     visibility = ["//beacon-chain:__subpackages__"],
     deps = [
+        "//beacon-chain/builder:go_default_library",
         "//beacon-chain/node:go_default_library",
         "//cmd:go_default_library",
         "//cmd/beacon-chain/blockchain:go_default_library",
diff --git a/cmd/beacon-chain/flags/base.go b/cmd/beacon-chain/flags/base.go
index e4ae78f4aa..eb24033f55 100644
--- a/cmd/beacon-chain/flags/base.go
+++ b/cmd/beacon-chain/flags/base.go
@@ -11,6 +11,12 @@ import (
 )
 
 var (
+	// MevRelayEndpoint provides an HTTP access endpoint to a MEV builder network.
+	MevRelayEndpoint = &cli.StringFlag{
+		Name:  "http-mev-relay",
+		Usage: "A MEV builder relay string http endpoint, this wil be used to interact MEV builder network using API defined in: https://ethereum.github.io/builder-specs/#/Builder",
+		Value: "",
+	}
 	// HTTPWeb3ProviderFlag provides an HTTP access endpoint to an ETH 1.0 RPC.
 	HTTPWeb3ProviderFlag = &cli.StringFlag{
 		Name:  "http-web3provider",
diff --git a/cmd/beacon-chain/main.go b/cmd/beacon-chain/main.go
index 96a4ebd2d5..8da816a2d0 100644
--- a/cmd/beacon-chain/main.go
+++ b/cmd/beacon-chain/main.go
@@ -11,6 +11,7 @@ import (
 	gethlog "github.com/ethereum/go-ethereum/log"
 	golog "github.com/ipfs/go-log/v2"
 	joonix "github.com/joonix/log"
+	"github.com/prysmaticlabs/prysm/beacon-chain/builder"
 	"github.com/prysmaticlabs/prysm/beacon-chain/node"
 	"github.com/prysmaticlabs/prysm/cmd"
 	blockchaincmd "github.com/prysmaticlabs/prysm/cmd/beacon-chain/blockchain"
@@ -72,6 +73,7 @@ var appFlags = []cli.Flag{
 	flags.TerminalTotalDifficultyOverride,
 	flags.TerminalBlockHashOverride,
 	flags.TerminalBlockHashActivationEpochOverride,
+	flags.MevRelayEndpoint,
 	cmd.EnableBackupWebhookFlag,
 	cmd.BackupWebhookOutputDir,
 	cmd.MinimalConfigFlag,
@@ -251,9 +253,14 @@ func startNode(ctx *cli.Context) error {
 	if err != nil {
 		return err
 	}
+	builderFlagOpts, err := builder.FlagOptions(ctx)
+	if err != nil {
+		return err
+	}
 	opts := []node.Option{
 		node.WithBlockchainFlagOptions(blockchainFlagOpts),
 		node.WithPowchainFlagOptions(powchainFlagOpts),
+		node.WithBuilderFlagOptions(builderFlagOpts),
 	}
 
 	optFuncs := []func(*cli.Context) (node.Option, error){
diff --git a/cmd/beacon-chain/usage.go b/cmd/beacon-chain/usage.go
index 05e4ee3f7d..f7f3f569d7 100644
--- a/cmd/beacon-chain/usage.go
+++ b/cmd/beacon-chain/usage.go
@@ -126,6 +126,7 @@ var appHelpFlagGroups = []flagGroup{
 			flags.WeakSubjectivityCheckpoint,
 			flags.Eth1HeaderReqLimit,
 			flags.MinPeersPerSubnet,
+			flags.MevRelayEndpoint,
 			checkpoint.BlockPath,
 			checkpoint.StatePath,
 			checkpoint.RemoteURL,