diff --git a/pkg/loop/cmd/loopinstall/config.go b/pkg/loop/cmd/loopinstall/config.go
index dbfd7252d..ee0345bd6 100644
--- a/pkg/loop/cmd/loopinstall/config.go
+++ b/pkg/loop/cmd/loopinstall/config.go
@@ -64,4 +64,3 @@ func pluginKey(pluginType string, plugin PluginDef) string {
 func isPluginEnabled(plugin PluginDef) bool {
 	return plugin.Enabled == nil || *plugin.Enabled
 }
-
diff --git a/pkg/loop/internal/core/services/capability/standard/standard_capabilities.go b/pkg/loop/internal/core/services/capability/standard/standard_capabilities.go
index f93a74515..255e90b34 100644
--- a/pkg/loop/internal/core/services/capability/standard/standard_capabilities.go
+++ b/pkg/loop/internal/core/services/capability/standard/standard_capabilities.go
@@ -7,6 +7,7 @@ import (
 	"google.golang.org/grpc"
 	"google.golang.org/protobuf/types/known/emptypb"
 
+	"github.com/smartcontractkit/chainlink-common/pkg/beholder"
 	"github.com/smartcontractkit/chainlink-common/pkg/capabilities"
 	capabilitiespb "github.com/smartcontractkit/chainlink-common/pkg/capabilities/pb"
 	"github.com/smartcontractkit/chainlink-common/pkg/logger"
@@ -304,6 +305,9 @@ func (s *standardCapabilitiesServer) Initialise(ctx context.Context, request *ca
 	resources = append(resources, net.Resource{Closer: keystoreConn, Name: "KeystoreConn"})
 	keyStore := keystoreservice.NewClient(keystoreConn)
 
+	// Sets the auth header signing mechanism
+	beholder.GetClient().SetSigner(keyStore)
+
 	capabilitiesRegistryConn, err := s.Dial(request.CapRegistryId)
 	if err != nil {
 		s.CloseAll(resources...)
diff --git a/pkg/loop/internal/relayer/relayer.go b/pkg/loop/internal/relayer/relayer.go
index c0309c5db..416cb42a0 100644
--- a/pkg/loop/internal/relayer/relayer.go
+++ b/pkg/loop/internal/relayer/relayer.go
@@ -13,6 +13,7 @@ import (
 	"google.golang.org/protobuf/types/known/emptypb"
 	"google.golang.org/protobuf/types/known/structpb"
 
+	"github.com/smartcontractkit/chainlink-common/pkg/beholder"
 	evmpb "github.com/smartcontractkit/chainlink-common/pkg/chains/evm"
 	solpb "github.com/smartcontractkit/chainlink-common/pkg/chains/solana"
 	tonpb "github.com/smartcontractkit/chainlink-common/pkg/chains/ton"
@@ -135,7 +136,12 @@ func (p *pluginRelayerServer) NewRelayer(ctx context.Context, request *pb.NewRel
 	crRes := net.Resource{Closer: capRegistryConn, Name: "CapabilityRegistry"}
 	capRegistry := capability.NewCapabilitiesRegistryClient(capRegistryConn, p.BrokerExt)
 
-	r, err := p.impl.NewRelayer(ctx, request.Config, ks.NewClient(ksConn), ks.NewClient(ksCSAConn), capRegistry)
+	csaKeystore := ks.NewClient(ksCSAConn)
+
+	// Sets the auth header signing mechanism
+	beholder.GetClient().SetSigner(csaKeystore)
+
+	r, err := p.impl.NewRelayer(ctx, request.Config, ks.NewClient(ksConn), csaKeystore, capRegistry)
 	if err != nil {
 		p.CloseAll(ksRes, ksCSARes, crRes)
 		return nil, err