diff --git a/components/dashboard/explorer_routes.go b/components/dashboard/explorer_routes.go
index 4918fc2f8..f5a73d25d 100644
--- a/components/dashboard/explorer_routes.go
+++ b/components/dashboard/explorer_routes.go
@@ -263,6 +263,10 @@ func getSlotDetailsByID(c echo.Context) error {
 		return err
 	}
 
+	if commitment.ID() != commitmentID {
+		return ierrors.Errorf("commitment in the store for slot %d does not match the given commitmentID (%s != %s)", commitmentID.Slot(), commitment.ID(), commitmentID)
+	}
+
 	diffs, err := deps.Protocol.MainEngineInstance().Ledger.SlotDiffs(commitmentID.Slot())
 	if err != nil {
 		return err
diff --git a/components/inx/server_commitments.go b/components/inx/server_commitments.go
index a88448dd8..a071a5116 100644
--- a/components/inx/server_commitments.go
+++ b/components/inx/server_commitments.go
@@ -15,6 +15,10 @@ import (
 )
 
 func inxCommitment(commitment *model.Commitment) *inx.Commitment {
+	if commitment == nil {
+		return nil
+	}
+
 	return &inx.Commitment{
 		CommitmentId: inx.NewCommitmentId(commitment.ID()),
 		Commitment: &inx.RawCommitment{
diff --git a/components/inx/server_utxo.go b/components/inx/server_utxo.go
index d1e87561e..fe732b384 100644
--- a/components/inx/server_utxo.go
+++ b/components/inx/server_utxo.go
@@ -30,7 +30,10 @@ func NewLedgerOutput(o *utxoledger.Output) (*inx.LedgerOutput, error) {
 	}
 
 	includedSlot := o.SlotBooked()
-	if includedSlot > 0 && includedSlot <= latestCommitment.Slot() {
+	if includedSlot > 0 &&
+		includedSlot <= latestCommitment.Slot() &&
+		includedSlot >= deps.Protocol.CommittedAPI().ProtocolParameters().GenesisSlot() {
+
 		includedCommitment, err := deps.Protocol.MainEngineInstance().Storage.Commitments().Load(includedSlot)
 		if err != nil {
 			return nil, ierrors.Wrapf(err, "failed to load commitment with slot: %d", includedSlot)
@@ -55,7 +58,10 @@ func NewLedgerSpent(s *utxoledger.Spent) (*inx.LedgerSpent, error) {
 
 	latestCommitment := deps.Protocol.MainEngineInstance().SyncManager.LatestCommitment()
 	spentSlot := s.SlotSpent()
-	if spentSlot > 0 && spentSlot <= latestCommitment.Slot() {
+	if spentSlot > 0 &&
+		spentSlot <= latestCommitment.Slot() &&
+		spentSlot >= deps.Protocol.CommittedAPI().ProtocolParameters().GenesisSlot() {
+
 		spentCommitment, err := deps.Protocol.MainEngineInstance().Storage.Commitments().Load(spentSlot)
 		if err != nil {
 			return nil, ierrors.Wrapf(err, "failed to load commitment with slot: %d", spentSlot)
diff --git a/components/restapi/core/accounts.go b/components/restapi/core/accounts.go
index 381c0105b..9b0eaffee 100644
--- a/components/restapi/core/accounts.go
+++ b/components/restapi/core/accounts.go
@@ -22,7 +22,19 @@ func congestionForAccountID(c echo.Context) (*apimodels.CongestionResponse, erro
 		return nil, err
 	}
 
+	commitmentID, err := httpserver.ParseCommitmentIDQueryParam(c, restapipkg.ParameterCommitmentID)
+	if err != nil {
+		return nil, err
+	}
+
 	commitment := deps.Protocol.MainEngineInstance().SyncManager.LatestCommitment()
+	if commitmentID != iotago.EmptyCommitmentID {
+		// a commitment ID was provided, so we use the commitment for that ID
+		commitment, err = getCommitmentByID(commitmentID, commitment)
+		if err != nil {
+			return nil, err
+		}
+	}
 
 	acc, exists, err := deps.Protocol.MainEngineInstance().Ledger.Account(accountID, commitment.Slot())
 	if err != nil {
diff --git a/components/restapi/core/commitment.go b/components/restapi/core/commitment.go
index 48f2598d2..2990f9b30 100644
--- a/components/restapi/core/commitment.go
+++ b/components/restapi/core/commitment.go
@@ -4,39 +4,59 @@ import (
 	"github.com/labstack/echo/v4"
 
 	"github.com/iotaledger/hive.go/ierrors"
-	"github.com/iotaledger/inx-app/pkg/httpserver"
-	restapipkg "github.com/iotaledger/iota-core/pkg/restapi"
+	"github.com/iotaledger/iota-core/pkg/model"
 	iotago "github.com/iotaledger/iota.go/v4"
 	"github.com/iotaledger/iota.go/v4/nodeclient/apimodels"
 )
 
-func indexByCommitmentID(c echo.Context) (iotago.SlotIndex, error) {
-	commitmentID, err := httpserver.ParseCommitmentIDParam(c, restapipkg.ParameterCommitmentID)
-	if err != nil {
-		return iotago.SlotIndex(0), ierrors.Wrapf(err, "failed to parse commitment ID %s", c.Param(restapipkg.ParameterCommitmentID))
+func getCommitmentBySlot(slot iotago.SlotIndex, latestCommitment ...*model.Commitment) (*model.Commitment, error) {
+	var latest *model.Commitment
+	if len(latestCommitment) > 0 {
+		latest = latestCommitment[0]
+	} else {
+		latest = deps.Protocol.MainEngineInstance().SyncManager.LatestCommitment()
 	}
 
-	return commitmentID.Slot(), nil
-}
+	if slot > latest.Slot() {
+		return nil, ierrors.Wrapf(echo.ErrBadRequest, "commitment is from a future slot (%d > %d)", slot, latest.Slot())
+	}
 
-func getCommitmentDetails(index iotago.SlotIndex) (*iotago.Commitment, error) {
-	commitment, err := deps.Protocol.MainEngineInstance().Storage.Commitments().Load(index)
+	commitment, err := deps.Protocol.MainEngineInstance().Storage.Commitments().Load(slot)
 	if err != nil {
-		return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to load commitment %d: %s", index, err)
+		return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to load commitment, slot: %d, error: %w", slot, err)
 	}
 
-	return commitment.Commitment(), nil
+	return commitment, nil
 }
 
-func getUTXOChanges(slot iotago.SlotIndex) (*apimodels.UTXOChangesResponse, error) {
-	diffs, err := deps.Protocol.MainEngineInstance().Ledger.SlotDiffs(slot)
+func getCommitmentByID(commitmentID iotago.CommitmentID, latestCommitment ...*model.Commitment) (*model.Commitment, error) {
+	var latest *model.Commitment
+	if len(latestCommitment) > 0 {
+		latest = latestCommitment[0]
+	} else {
+		latest = deps.Protocol.MainEngineInstance().SyncManager.LatestCommitment()
+	}
+
+	if commitmentID.Slot() > latest.Slot() {
+		return nil, ierrors.Wrapf(echo.ErrBadRequest, "commitment ID (%s) is from a future slot (%d > %d)", commitmentID, commitmentID.Slot(), latest.Slot())
+	}
+
+	commitment, err := deps.Protocol.MainEngineInstance().Storage.Commitments().Load(commitmentID.Slot())
 	if err != nil {
-		return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to get slot diffs %d: %s", slot, err)
+		return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to load commitment, commitmentID: %s, slot: %d, error: %w", commitmentID, commitmentID.Slot(), err)
+	}
+
+	if commitment.ID() != commitmentID {
+		return nil, ierrors.Wrapf(echo.ErrBadRequest, "commitment in the store for slot %d does not match the given commitmentID (%s != %s)", commitmentID.Slot(), commitment.ID(), commitmentID)
 	}
 
-	commitment, err := deps.Protocol.MainEngineInstance().Storage.Commitments().Load(diffs.Slot)
+	return commitment, nil
+}
+
+func getUTXOChanges(commitmentID iotago.CommitmentID) (*apimodels.UTXOChangesResponse, error) {
+	diffs, err := deps.Protocol.MainEngineInstance().Ledger.SlotDiffs(commitmentID.Slot())
 	if err != nil {
-		return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to load commitment %d: %s", diffs.Slot, err)
+		return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to get slot diffs, commitmentID: %s, slot: %d, error: %w", commitmentID, commitmentID.Slot(), err)
 	}
 
 	createdOutputs := make(iotago.OutputIDs, len(diffs.Outputs))
@@ -51,7 +71,7 @@ func getUTXOChanges(slot iotago.SlotIndex) (*apimodels.UTXOChangesResponse, erro
 	}
 
 	return &apimodels.UTXOChangesResponse{
-		CommitmentID:    commitment.ID(),
+		CommitmentID:    commitmentID,
 		CreatedOutputs:  createdOutputs,
 		ConsumedOutputs: consumedOutputs,
 	}, nil
diff --git a/components/restapi/core/component.go b/components/restapi/core/component.go
index 6785dc462..4494b3f1c 100644
--- a/components/restapi/core/component.go
+++ b/components/restapi/core/component.go
@@ -112,7 +112,7 @@ const (
 	RouteCommitmentByIndexUTXOChanges = "/commitments/by-index/:" + restapipkg.ParameterSlotIndex + "/utxo-changes"
 
 	// RouteCongestion is the route for getting the current congestion state and all account related useful details as block issuance credits.
-	// GET returns the congestion state related to the specified account.
+	// GET returns the congestion state related to the specified account. (optional query parameters: "commitmentID" to specify the used commitment)
 	// MIMEApplicationJSON => json.
 	// MIMEApplicationVendorIOTASerializerV2 => bytes.
 	RouteCongestion = "/accounts/:" + restapipkg.ParameterAccountID + "/congestion"
@@ -235,26 +235,32 @@ func configure() error {
 	}, checkNodeSynced())
 
 	routeGroup.GET(RouteCommitmentByID, func(c echo.Context) error {
-		index, err := indexByCommitmentID(c)
+		commitmentID, err := httpserver.ParseCommitmentIDParam(c, restapipkg.ParameterCommitmentID)
 		if err != nil {
 			return err
 		}
 
-		commitment, err := getCommitmentDetails(index)
+		commitment, err := getCommitmentByID(commitmentID)
 		if err != nil {
 			return err
 		}
 
-		return responseByHeader(c, commitment)
+		return responseByHeader(c, commitment.Commitment())
 	})
 
 	routeGroup.GET(RouteCommitmentByIDUTXOChanges, func(c echo.Context) error {
-		index, err := indexByCommitmentID(c)
+		commitmentID, err := httpserver.ParseCommitmentIDParam(c, restapipkg.ParameterCommitmentID)
 		if err != nil {
 			return err
 		}
 
-		resp, err := getUTXOChanges(index)
+		// load the commitment to check if it matches the given commitmentID
+		commitment, err := getCommitmentByID(commitmentID)
+		if err != nil {
+			return err
+		}
+
+		resp, err := getUTXOChanges(commitment.ID())
 		if err != nil {
 			return err
 		}
@@ -268,21 +274,26 @@ func configure() error {
 			return err
 		}
 
-		resp, err := getCommitmentDetails(index)
+		commitment, err := getCommitmentBySlot(index)
 		if err != nil {
 			return err
 		}
 
-		return responseByHeader(c, resp)
+		return responseByHeader(c, commitment.Commitment())
 	})
 
 	routeGroup.GET(RouteCommitmentByIndexUTXOChanges, func(c echo.Context) error {
-		index, err := httpserver.ParseSlotParam(c, restapipkg.ParameterSlotIndex)
+		slot, err := httpserver.ParseSlotParam(c, restapipkg.ParameterSlotIndex)
+		if err != nil {
+			return err
+		}
+
+		commitment, err := getCommitmentBySlot(slot)
 		if err != nil {
 			return err
 		}
 
-		resp, err := getUTXOChanges(index)
+		resp, err := getUTXOChanges(commitment.ID())
 		if err != nil {
 			return err
 		}
diff --git a/components/restapi/core/utxo.go b/components/restapi/core/utxo.go
index 2fd9a7fad..cec4f033e 100644
--- a/components/restapi/core/utxo.go
+++ b/components/restapi/core/utxo.go
@@ -93,7 +93,8 @@ func newOutputMetadataResponse(output *utxoledger.Output) (*apimodels.OutputMeta
 	}
 
 	includedSlotIndex := output.SlotBooked()
-	if includedSlotIndex <= latestCommitment.Slot() {
+	genesisSlot := deps.Protocol.MainEngineInstance().CommittedAPI().ProtocolParameters().GenesisSlot()
+	if includedSlotIndex <= latestCommitment.Slot() && includedSlotIndex >= genesisSlot {
 		includedCommitment, err := deps.Protocol.MainEngineInstance().Storage.Commitments().Load(includedSlotIndex)
 		if err != nil {
 			return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to load commitment with index %d: %s", includedSlotIndex, err)
@@ -117,7 +118,8 @@ func newSpentMetadataResponse(spent *utxoledger.Spent) (*apimodels.OutputMetadat
 	}
 
 	includedSlotIndex := spent.Output().SlotBooked()
-	if includedSlotIndex <= latestCommitment.Slot() {
+	genesisSlot := deps.Protocol.MainEngineInstance().CommittedAPI().ProtocolParameters().GenesisSlot()
+	if includedSlotIndex <= latestCommitment.Slot() && includedSlotIndex >= genesisSlot {
 		includedCommitment, err := deps.Protocol.MainEngineInstance().Storage.Commitments().Load(includedSlotIndex)
 		if err != nil {
 			return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to load commitment with index %d: %s", includedSlotIndex, err)
@@ -126,7 +128,7 @@ func newSpentMetadataResponse(spent *utxoledger.Spent) (*apimodels.OutputMetadat
 	}
 
 	spentSlotIndex := spent.SlotSpent()
-	if spentSlotIndex <= latestCommitment.Slot() {
+	if spentSlotIndex <= latestCommitment.Slot() && spentSlotIndex >= genesisSlot {
 		spentCommitment, err := deps.Protocol.MainEngineInstance().Storage.Commitments().Load(spentSlotIndex)
 		if err != nil {
 			return nil, ierrors.Wrapf(echo.ErrInternalServerError, "failed to load commitment with index %d: %s", spentSlotIndex, err)
diff --git a/pkg/protocol/engine/committed_slot_api.go b/pkg/protocol/engine/committed_slot_api.go
index 2a2871b24..ad70e4785 100644
--- a/pkg/protocol/engine/committed_slot_api.go
+++ b/pkg/protocol/engine/committed_slot_api.go
@@ -30,6 +30,10 @@ func (c *CommittedSlotAPI) Commitment() (commitment *model.Commitment, err error
 		return nil, ierrors.Wrapf(err, "failed to load commitment for slot %d", c.CommitmentID)
 	}
 
+	if commitment.ID() != c.CommitmentID {
+		return nil, ierrors.Errorf("commitment in the store does not match the given commitmentID (%s != %s)", commitment.ID(), c.CommitmentID)
+	}
+
 	return commitment, nil
 }