diff --git a/runtime/v2/app.go b/runtime/v2/app.go
index d5999f3bd99f..e52ea26c6e9f 100644
--- a/runtime/v2/app.go
+++ b/runtime/v2/app.go
@@ -8,6 +8,7 @@ import (
 	"cosmossdk.io/core/registry"
 	"cosmossdk.io/core/transaction"
 	"cosmossdk.io/log"
+	"cosmossdk.io/schema/decoding"
 	"cosmossdk.io/server/v2/appmanager"
 	"cosmossdk.io/server/v2/stf"
 )
@@ -96,3 +97,12 @@ func (a *App[T]) GetAppManager() *appmanager.AppManager[T] {
 func (a *App[T]) GetQueryHandlers() map[string]appmodulev2.Handler {
 	return a.QueryHandlers
 }
+
+// GetSchemaDecoderResolver returns the module schema resolver.
+func (a *App[T]) GetSchemaDecoderResolver() decoding.DecoderResolver {
+	moduleSet := map[string]any{}
+	for moduleName, module := range a.moduleManager.Modules() {
+		moduleSet[moduleName] = module
+	}
+	return decoding.ModuleSetDecoderResolver(moduleSet)
+}
diff --git a/runtime/v2/go.mod b/runtime/v2/go.mod
index c28b2b52a05b..5147e8ad1362 100644
--- a/runtime/v2/go.mod
+++ b/runtime/v2/go.mod
@@ -16,6 +16,7 @@ require (
 	cosmossdk.io/core v1.0.0-alpha.4
 	cosmossdk.io/depinject v1.0.0
 	cosmossdk.io/log v1.4.1
+	cosmossdk.io/schema v0.3.0
 	cosmossdk.io/server/v2/appmanager v0.0.0-00010101000000-000000000000
 	cosmossdk.io/server/v2/stf v0.0.0-00010101000000-000000000000
 	cosmossdk.io/store/v2 v2.0.0-00010101000000-000000000000
@@ -30,7 +31,6 @@ require (
 	buf.build/gen/go/cosmos/gogo-proto/protocolbuffers/go v1.34.2-20240130113600-88ef6483f90f.2 // indirect
 	cosmossdk.io/core/testing v0.0.0-20240923163230-04da382a9f29 // indirect
 	cosmossdk.io/errors/v2 v2.0.0-20240731132947-df72853b3ca5 // indirect
-	cosmossdk.io/schema v0.3.0 // indirect
 	github.com/DataDog/zstd v1.5.5 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
diff --git a/schema/indexer/start.go b/schema/indexer/start.go
index 909db71ed61a..f675c2916026 100644
--- a/schema/indexer/start.go
+++ b/schema/indexer/start.go
@@ -51,11 +51,11 @@ type IndexingOptions struct {
 // IndexingConfig is the configuration of the indexer manager and contains the configuration for each indexer target.
 type IndexingConfig struct {
 	// Target is a map of named indexer targets to their configuration.
-	Target map[string]Config
+	Target map[string]Config `mapstructure:"target" toml:"target" json:"target" comment:"Target is a map of named indexer targets to their configuration."`
 
 	// ChannelBufferSize is the buffer size of the channels used for buffering data sent to indexer go routines.
 	// It defaults to 1024.
-	ChannelBufferSize *int `json:"channel_buffer_size,omitempty"`
+	ChannelBufferSize int `mapstructure:"channel_buffer_size" toml:"channel_buffer_size" json:"channel_buffer_size,omitempty" comment:"Buffer size of the channels used for buffering data sent to indexer go routines."`
 }
 
 // IndexingTarget returns the indexing target listener and associated data.
@@ -142,8 +142,8 @@ func StartIndexing(opts IndexingOptions) (IndexingTarget, error) {
 	}
 
 	bufSize := 1024
-	if cfg.ChannelBufferSize != nil {
-		bufSize = *cfg.ChannelBufferSize
+	if cfg.ChannelBufferSize != 0 {
+		bufSize = cfg.ChannelBufferSize
 	}
 	asyncOpts := appdata.AsyncListenerOptions{
 		Context:       ctx,
diff --git a/server/v2/cometbft/abci.go b/server/v2/cometbft/abci.go
index cbcf387168a2..95eeec9bb5da 100644
--- a/server/v2/cometbft/abci.go
+++ b/server/v2/cometbft/abci.go
@@ -114,11 +114,6 @@ func (c *Consensus[T]) SetStreamingManager(sm streaming.Manager) {
 	c.streaming = sm
 }
 
-// SetListener sets the listener for the consensus module.
-func (c *Consensus[T]) SetListener(l *appdata.Listener) {
-	c.listener = l
-}
-
 // RegisterSnapshotExtensions registers the given extensions with the consensus module's snapshot manager.
 // It allows additional snapshotter implementations to be used for creating and restoring snapshots.
 func (c *Consensus[T]) RegisterSnapshotExtensions(extensions ...snapshots.ExtensionSnapshotter) error {
diff --git a/server/v2/cometbft/config.go b/server/v2/cometbft/config.go
index 4525e7563c27..d8e591a9695c 100644
--- a/server/v2/cometbft/config.go
+++ b/server/v2/cometbft/config.go
@@ -3,6 +3,7 @@ package cometbft
 import (
 	cmtcfg "github.com/cometbft/cometbft/config"
 
+	"cosmossdk.io/schema/indexer"
 	"cosmossdk.io/server/v2/cometbft/mempool"
 )
 
@@ -23,6 +24,10 @@ func DefaultAppTomlConfig() *AppTomlConfig {
 		Trace:           false,
 		Standalone:      false,
 		Mempool:         mempool.DefaultConfig(),
+		Indexer: indexer.IndexingConfig{
+			Target:            make(map[string]indexer.Config),
+			ChannelBufferSize: 1024,
+		},
 	}
 }
 
@@ -37,7 +42,8 @@ type AppTomlConfig struct {
 	Standalone      bool     `mapstructure:"standalone" toml:"standalone" comment:"standalone starts the application without the CometBFT node. The node should be started separately."`
 
 	// Sub configs
-	Mempool mempool.Config `mapstructure:"mempool" toml:"mempool" comment:"mempool defines the configuration for the SDK built-in app-side mempool implementations."`
+	Mempool mempool.Config         `mapstructure:"mempool" toml:"mempool" comment:"mempool defines the configuration for the SDK built-in app-side mempool implementations."`
+	Indexer indexer.IndexingConfig `mapstructure:"indexer" toml:"indexer" comment:"indexer defines the configuration for the SDK built-in indexer implementation."`
 }
 
 // CfgOption is a function that allows to overwrite the default server configuration.
diff --git a/server/v2/cometbft/go.mod b/server/v2/cometbft/go.mod
index c95f22af817a..46a403768850 100644
--- a/server/v2/cometbft/go.mod
+++ b/server/v2/cometbft/go.mod
@@ -22,7 +22,7 @@ require (
 	cosmossdk.io/core v1.0.0-alpha.4
 	cosmossdk.io/errors/v2 v2.0.0-20240731132947-df72853b3ca5
 	cosmossdk.io/log v1.4.1
-	cosmossdk.io/schema v0.3.1-0.20240930054013-7c6e0388a3f9
+	cosmossdk.io/schema v0.3.1-0.20241010135032-192601639cac
 	cosmossdk.io/server/v2 v2.0.0-00010101000000-000000000000
 	cosmossdk.io/server/v2/appmanager v0.0.0-20240802110823-cffeedff643d
 	cosmossdk.io/server/v2/stf v0.0.0-20240708142107-25e99c54bac1
diff --git a/server/v2/cometbft/go.sum b/server/v2/cometbft/go.sum
index 4343a0df72ca..311e601f7d43 100644
--- a/server/v2/cometbft/go.sum
+++ b/server/v2/cometbft/go.sum
@@ -20,8 +20,8 @@ cosmossdk.io/log v1.4.1 h1:wKdjfDRbDyZRuWa8M+9nuvpVYxrEOwbD/CA8hvhU8QM=
 cosmossdk.io/log v1.4.1/go.mod h1:k08v0Pyq+gCP6phvdI6RCGhLf/r425UT6Rk/m+o74rU=
 cosmossdk.io/math v1.3.0 h1:RC+jryuKeytIiictDslBP9i1fhkVm6ZDmZEoNP316zE=
 cosmossdk.io/math v1.3.0/go.mod h1:vnRTxewy+M7BtXBNFybkuhSH4WfedVAAnERHgVFhp3k=
-cosmossdk.io/schema v0.3.1-0.20240930054013-7c6e0388a3f9 h1:DmOoS/1PeY6Ih0hAVlJ69kLMUrLV+TCbfICrZtB1vdU=
-cosmossdk.io/schema v0.3.1-0.20240930054013-7c6e0388a3f9/go.mod h1:RDAhxIeNB4bYqAlF4NBJwRrgtnciMcyyg0DOKnhNZQQ=
+cosmossdk.io/schema v0.3.1-0.20241010135032-192601639cac h1:3joNZZWZ3k7fMsrBDL1ktuQ2xQwYLZOaDhkruadDFmc=
+cosmossdk.io/schema v0.3.1-0.20241010135032-192601639cac/go.mod h1:RDAhxIeNB4bYqAlF4NBJwRrgtnciMcyyg0DOKnhNZQQ=
 filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
 github.com/99designs/go-keychain v0.0.0-20191008050251-8e49817e8af4 h1:/vQbFIOMbk2FiG/kXiLl8BRyzTWDw7gX/Hz7Dd5eDMs=
diff --git a/server/v2/cometbft/server.go b/server/v2/cometbft/server.go
index e5076b897073..8bd2935149e7 100644
--- a/server/v2/cometbft/server.go
+++ b/server/v2/cometbft/server.go
@@ -20,6 +20,7 @@ import (
 
 	"cosmossdk.io/core/transaction"
 	"cosmossdk.io/log"
+	"cosmossdk.io/schema/indexer"
 	serverv2 "cosmossdk.io/server/v2"
 	cometlog "cosmossdk.io/server/v2/cometbft/log"
 	"cosmossdk.io/server/v2/cometbft/mempool"
@@ -131,6 +132,19 @@ func (s *CometBFTServer[T]) Init(appI serverv2.AppI[T], cfg map[string]any, logg
 	}
 	consensus.snapshotManager = snapshots.NewManager(snapshotStore, s.serverOptions.SnapshotOptions(cfg), sc, ss, nil, s.logger)
 
+	// initialize the indexer
+	if indexerCfg := s.config.AppTomlConfig.Indexer; len(indexerCfg.Target) > 0 {
+		listener, err := indexer.StartIndexing(indexer.IndexingOptions{
+			Config:   indexerCfg,
+			Resolver: appI.GetSchemaDecoderResolver(),
+			Logger:   s.logger.With(log.ModuleKey, "indexer"),
+		})
+		if err != nil {
+			return fmt.Errorf("failed to start indexing: %w", err)
+		}
+		consensus.listener = &listener.Listener
+	}
+
 	s.Consensus = consensus
 
 	return nil
diff --git a/server/v2/config.go b/server/v2/config.go
index 0670bc374a24..1ab396f0c148 100644
--- a/server/v2/config.go
+++ b/server/v2/config.go
@@ -44,11 +44,8 @@ func ReadConfig(configPath string) (*viper.Viper, error) {
 func UnmarshalSubConfig(cfg map[string]any, subName string, target any) error {
 	var sub any
 	if subName != "" {
-		for k, val := range cfg {
-			if k == subName {
-				sub = val
-				break
-			}
+		if val, ok := cfg[subName]; ok {
+			sub = val
 		}
 	} else {
 		sub = cfg
diff --git a/server/v2/go.mod b/server/v2/go.mod
index 1fca8cbb4416..11389921eb76 100644
--- a/server/v2/go.mod
+++ b/server/v2/go.mod
@@ -16,6 +16,7 @@ require (
 	cosmossdk.io/core v1.0.0-alpha.4
 	cosmossdk.io/core/testing v0.0.0-20240923163230-04da382a9f29
 	cosmossdk.io/log v1.4.1
+	cosmossdk.io/schema v0.3.1-0.20241010135032-192601639cac
 	cosmossdk.io/server/v2/appmanager v0.0.0-00010101000000-000000000000
 	cosmossdk.io/store/v2 v2.0.0-00010101000000-000000000000
 	github.com/cosmos/cosmos-proto v1.0.0-beta.5
@@ -42,7 +43,6 @@ require (
 
 require (
 	cosmossdk.io/errors/v2 v2.0.0-20240731132947-df72853b3ca5 // indirect
-	cosmossdk.io/schema v0.3.0 // indirect
 	github.com/DataDog/datadog-go v4.8.3+incompatible // indirect
 	github.com/DataDog/zstd v1.5.5 // indirect
 	github.com/Microsoft/go-winio v0.6.1 // indirect
diff --git a/server/v2/go.sum b/server/v2/go.sum
index 26e67ab39a4c..4a7c52d6f39a 100644
--- a/server/v2/go.sum
+++ b/server/v2/go.sum
@@ -8,8 +8,8 @@ cosmossdk.io/errors/v2 v2.0.0-20240731132947-df72853b3ca5 h1:IQNdY2kB+k+1OM2DvqF
 cosmossdk.io/errors/v2 v2.0.0-20240731132947-df72853b3ca5/go.mod h1:0CuYKkFHxc1vw2JC+t21THBCALJVROrWVR/3PQ1urpc=
 cosmossdk.io/log v1.4.1 h1:wKdjfDRbDyZRuWa8M+9nuvpVYxrEOwbD/CA8hvhU8QM=
 cosmossdk.io/log v1.4.1/go.mod h1:k08v0Pyq+gCP6phvdI6RCGhLf/r425UT6Rk/m+o74rU=
-cosmossdk.io/schema v0.3.0 h1:01lcaM4trhzZ1HQTfTV8z6Ma1GziOZ/YmdzBN3F720c=
-cosmossdk.io/schema v0.3.0/go.mod h1:RDAhxIeNB4bYqAlF4NBJwRrgtnciMcyyg0DOKnhNZQQ=
+cosmossdk.io/schema v0.3.1-0.20241010135032-192601639cac h1:3joNZZWZ3k7fMsrBDL1ktuQ2xQwYLZOaDhkruadDFmc=
+cosmossdk.io/schema v0.3.1-0.20241010135032-192601639cac/go.mod h1:RDAhxIeNB4bYqAlF4NBJwRrgtnciMcyyg0DOKnhNZQQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/DataDog/datadog-go v3.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
 github.com/DataDog/datadog-go v4.8.3+incompatible h1:fNGaYSuObuQb5nzeTQqowRAd9bpDIRRV4/gUtIBjh8Q=
diff --git a/server/v2/types.go b/server/v2/types.go
index 8bd04d3221af..e628fb30c90f 100644
--- a/server/v2/types.go
+++ b/server/v2/types.go
@@ -7,6 +7,7 @@ import (
 	"cosmossdk.io/core/server"
 	"cosmossdk.io/core/transaction"
 	"cosmossdk.io/log"
+	"cosmossdk.io/schema/decoding"
 	"cosmossdk.io/server/v2/appmanager"
 	"cosmossdk.io/store/v2"
 )
@@ -19,4 +20,5 @@ type AppI[T transaction.Tx] interface {
 	GetAppManager() *appmanager.AppManager[T]
 	GetQueryHandlers() map[string]appmodulev2.Handler
 	GetStore() store.RootStore
+	GetSchemaDecoderResolver() decoding.DecoderResolver
 }
diff --git a/simapp/v2/go.mod b/simapp/v2/go.mod
index 448a98a8928f..1ae8b374709f 100644
--- a/simapp/v2/go.mod
+++ b/simapp/v2/go.mod
@@ -61,7 +61,7 @@ require (
 	cosmossdk.io/core/testing v0.0.0-20240923163230-04da382a9f29 // indirect
 	cosmossdk.io/errors v1.0.1 // indirect
 	cosmossdk.io/errors/v2 v2.0.0-20240731132947-df72853b3ca5 // indirect
-	cosmossdk.io/schema v0.3.1-0.20240930054013-7c6e0388a3f9 // indirect
+	cosmossdk.io/schema v0.3.1-0.20241010135032-192601639cac // indirect
 	cosmossdk.io/server/v2/appmanager v0.0.0-20240802110823-cffeedff643d // indirect
 	cosmossdk.io/server/v2/stf v0.0.0-20240708142107-25e99c54bac1 // indirect
 	cosmossdk.io/store v1.1.1 // indirect
diff --git a/simapp/v2/go.sum b/simapp/v2/go.sum
index f29f693d6539..c64c8320652f 100644
--- a/simapp/v2/go.sum
+++ b/simapp/v2/go.sum
@@ -206,8 +206,8 @@ cosmossdk.io/log v1.4.1 h1:wKdjfDRbDyZRuWa8M+9nuvpVYxrEOwbD/CA8hvhU8QM=
 cosmossdk.io/log v1.4.1/go.mod h1:k08v0Pyq+gCP6phvdI6RCGhLf/r425UT6Rk/m+o74rU=
 cosmossdk.io/math v1.3.0 h1:RC+jryuKeytIiictDslBP9i1fhkVm6ZDmZEoNP316zE=
 cosmossdk.io/math v1.3.0/go.mod h1:vnRTxewy+M7BtXBNFybkuhSH4WfedVAAnERHgVFhp3k=
-cosmossdk.io/schema v0.3.1-0.20240930054013-7c6e0388a3f9 h1:DmOoS/1PeY6Ih0hAVlJ69kLMUrLV+TCbfICrZtB1vdU=
-cosmossdk.io/schema v0.3.1-0.20240930054013-7c6e0388a3f9/go.mod h1:RDAhxIeNB4bYqAlF4NBJwRrgtnciMcyyg0DOKnhNZQQ=
+cosmossdk.io/schema v0.3.1-0.20241010135032-192601639cac h1:3joNZZWZ3k7fMsrBDL1ktuQ2xQwYLZOaDhkruadDFmc=
+cosmossdk.io/schema v0.3.1-0.20241010135032-192601639cac/go.mod h1:RDAhxIeNB4bYqAlF4NBJwRrgtnciMcyyg0DOKnhNZQQ=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
diff --git a/tools/confix/data/v2-app.toml b/tools/confix/data/v2-app.toml
index c4f19348ce52..ef144a0b90dd 100644
--- a/tools/confix/data/v2-app.toml
+++ b/tools/confix/data/v2-app.toml
@@ -21,6 +21,14 @@ standalone = false
 # max-txs defines the maximum number of transactions that can be in the mempool. A value of 0 indicates an unbounded mempool, a negative value disables the app-side mempool.
 max-txs = -1
 
+# indexer defines the configuration for the SDK built-in indexer implementation.
+[comet.indexer]
+# Buffer size of the channels used for buffering data sent to indexer go routines.
+channel_buffer_size = 1024
+
+# Target is a map of named indexer targets to their configuration.
+[comet.indexer.target]
+
 [grpc]
 # Enable defines if the gRPC server should be enabled.
 enable = true
@@ -71,7 +79,7 @@ skip-fast-storage-upgrade = true
 # Enable enables the application telemetry functionality. When enabled, an in-memory sink is also enabled by default. Operators may also enabled other sinks such as Prometheus.
 enable = true
 # Address defines the metrics server address to bind to.
-address = 'localhost:1338'
+address = 'localhost:1318'
 # Prefixed with keys to separate services.
 service-name = ''
 # Enable prefixing gauge values with hostname.