diff --git a/api/api_gateway.go b/api/api_gateway.go
index 2e877fb1a07..9bc69cc0f96 100644
--- a/api/api_gateway.go
+++ b/api/api_gateway.go
@@ -15,6 +15,7 @@ import (
 	apitypes "github.com/filecoin-project/lotus/api/types"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/chain/types/ethtypes"
+	"github.com/filecoin-project/lotus/node/modules/dtypes"
 )
 
 //                       MODIFYING THE API INTERFACE
@@ -47,15 +48,18 @@ type Gateway interface {
 	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
 	ChainGetGenesis(context.Context) (*types.TipSet, error)
 	GasEstimateMessageGas(ctx context.Context, msg *types.Message, spec *MessageSendSpec, tsk types.TipSetKey) (*types.Message, error)
+	MpoolGetNonce(ctx context.Context, addr address.Address) (uint64, error)
 	MpoolPush(ctx context.Context, sm *types.SignedMessage) (cid.Cid, error)
 	MsigGetAvailableBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (types.BigInt, error)
 	MsigGetPending(context.Context, address.Address, types.TipSetKey) ([]*MsigTransaction, error)
 	MsigGetVested(ctx context.Context, addr address.Address, start types.TipSetKey, end types.TipSetKey) (types.BigInt, error)
 	MsigGetVestingSchedule(ctx context.Context, addr address.Address, tsk types.TipSetKey) (MsigVesting, error)
 	StateAccountKey(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
+	StateCall(ctx context.Context, msg *types.Message, tsk types.TipSetKey) (*InvocResult, error)
 	StateDealProviderCollateralBounds(ctx context.Context, size abi.PaddedPieceSize, verified bool, tsk types.TipSetKey) (DealCollateralBounds, error)
+	StateDecodeParams(ctx context.Context, toAddr address.Address, method abi.MethodNum, params []byte, tsk types.TipSetKey) (interface{}, error)
 	StateGetActor(ctx context.Context, actor address.Address, ts types.TipSetKey) (*types.Actor, error)
-	StateReadState(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*ActorState, error) //perm:read
+	StateReadState(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*ActorState, error)
 	StateListMiners(ctx context.Context, tsk types.TipSetKey) ([]address.Address, error)
 	StateLookupID(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
 	StateMarketBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (MarketBalance, error)
@@ -63,6 +67,7 @@ type Gateway interface {
 	StateMinerInfo(ctx context.Context, actor address.Address, tsk types.TipSetKey) (MinerInfo, error)
 	StateMinerProvingDeadline(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*dline.Info, error)
 	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*MinerPower, error)
+	StateNetworkName(context.Context) (dtypes.NetworkName, error)
 	StateNetworkVersion(context.Context, types.TipSetKey) (apitypes.NetworkVersion, error)
 	StateSectorGetInfo(ctx context.Context, maddr address.Address, n abi.SectorNumber, tsk types.TipSetKey) (*miner.SectorOnChainInfo, error)
 	StateVerifiedClientStatus(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*abi.StoragePower, error)
diff --git a/api/proxy_gen.go b/api/proxy_gen.go
index 17be4088d7c..33e6362bd87 100644
--- a/api/proxy_gen.go
+++ b/api/proxy_gen.go
@@ -724,6 +724,8 @@ type GatewayMethods struct {
 
 	GasEstimateMessageGas func(p0 context.Context, p1 *types.Message, p2 *MessageSendSpec, p3 types.TipSetKey) (*types.Message, error) ``
 
+	MpoolGetNonce func(p0 context.Context, p1 address.Address) (uint64, error) ``
+
 	MpoolPush func(p0 context.Context, p1 *types.SignedMessage) (cid.Cid, error) ``
 
 	MsigGetAvailableBalance func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (types.BigInt, error) ``
@@ -740,8 +742,12 @@ type GatewayMethods struct {
 
 	StateAccountKey func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (address.Address, error) ``
 
+	StateCall func(p0 context.Context, p1 *types.Message, p2 types.TipSetKey) (*InvocResult, error) ``
+
 	StateDealProviderCollateralBounds func(p0 context.Context, p1 abi.PaddedPieceSize, p2 bool, p3 types.TipSetKey) (DealCollateralBounds, error) ``
 
+	StateDecodeParams func(p0 context.Context, p1 address.Address, p2 abi.MethodNum, p3 []byte, p4 types.TipSetKey) (interface{}, error) ``
+
 	StateGetActor func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*types.Actor, error) ``
 
 	StateListMiners func(p0 context.Context, p1 types.TipSetKey) ([]address.Address, error) ``
@@ -758,9 +764,11 @@ type GatewayMethods struct {
 
 	StateMinerProvingDeadline func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*dline.Info, error) ``
 
+	StateNetworkName func(p0 context.Context) (dtypes.NetworkName, error) ``
+
 	StateNetworkVersion func(p0 context.Context, p1 types.TipSetKey) (apitypes.NetworkVersion, error) ``
 
-	StateReadState func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*ActorState, error) `perm:"read"`
+	StateReadState func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*ActorState, error) ``
 
 	StateSearchMsg func(p0 context.Context, p1 types.TipSetKey, p2 cid.Cid, p3 abi.ChainEpoch, p4 bool) (*MsgLookup, error) ``
 
@@ -4589,6 +4597,17 @@ func (s *GatewayStub) GasEstimateMessageGas(p0 context.Context, p1 *types.Messag
 	return nil, ErrNotSupported
 }
 
+func (s *GatewayStruct) MpoolGetNonce(p0 context.Context, p1 address.Address) (uint64, error) {
+	if s.Internal.MpoolGetNonce == nil {
+		return 0, ErrNotSupported
+	}
+	return s.Internal.MpoolGetNonce(p0, p1)
+}
+
+func (s *GatewayStub) MpoolGetNonce(p0 context.Context, p1 address.Address) (uint64, error) {
+	return 0, ErrNotSupported
+}
+
 func (s *GatewayStruct) MpoolPush(p0 context.Context, p1 *types.SignedMessage) (cid.Cid, error) {
 	if s.Internal.MpoolPush == nil {
 		return *new(cid.Cid), ErrNotSupported
@@ -4677,6 +4696,17 @@ func (s *GatewayStub) StateAccountKey(p0 context.Context, p1 address.Address, p2
 	return *new(address.Address), ErrNotSupported
 }
 
+func (s *GatewayStruct) StateCall(p0 context.Context, p1 *types.Message, p2 types.TipSetKey) (*InvocResult, error) {
+	if s.Internal.StateCall == nil {
+		return nil, ErrNotSupported
+	}
+	return s.Internal.StateCall(p0, p1, p2)
+}
+
+func (s *GatewayStub) StateCall(p0 context.Context, p1 *types.Message, p2 types.TipSetKey) (*InvocResult, error) {
+	return nil, ErrNotSupported
+}
+
 func (s *GatewayStruct) StateDealProviderCollateralBounds(p0 context.Context, p1 abi.PaddedPieceSize, p2 bool, p3 types.TipSetKey) (DealCollateralBounds, error) {
 	if s.Internal.StateDealProviderCollateralBounds == nil {
 		return *new(DealCollateralBounds), ErrNotSupported
@@ -4688,6 +4718,17 @@ func (s *GatewayStub) StateDealProviderCollateralBounds(p0 context.Context, p1 a
 	return *new(DealCollateralBounds), ErrNotSupported
 }
 
+func (s *GatewayStruct) StateDecodeParams(p0 context.Context, p1 address.Address, p2 abi.MethodNum, p3 []byte, p4 types.TipSetKey) (interface{}, error) {
+	if s.Internal.StateDecodeParams == nil {
+		return nil, ErrNotSupported
+	}
+	return s.Internal.StateDecodeParams(p0, p1, p2, p3, p4)
+}
+
+func (s *GatewayStub) StateDecodeParams(p0 context.Context, p1 address.Address, p2 abi.MethodNum, p3 []byte, p4 types.TipSetKey) (interface{}, error) {
+	return nil, ErrNotSupported
+}
+
 func (s *GatewayStruct) StateGetActor(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*types.Actor, error) {
 	if s.Internal.StateGetActor == nil {
 		return nil, ErrNotSupported
@@ -4776,6 +4817,17 @@ func (s *GatewayStub) StateMinerProvingDeadline(p0 context.Context, p1 address.A
 	return nil, ErrNotSupported
 }
 
+func (s *GatewayStruct) StateNetworkName(p0 context.Context) (dtypes.NetworkName, error) {
+	if s.Internal.StateNetworkName == nil {
+		return *new(dtypes.NetworkName), ErrNotSupported
+	}
+	return s.Internal.StateNetworkName(p0)
+}
+
+func (s *GatewayStub) StateNetworkName(p0 context.Context) (dtypes.NetworkName, error) {
+	return *new(dtypes.NetworkName), ErrNotSupported
+}
+
 func (s *GatewayStruct) StateNetworkVersion(p0 context.Context, p1 types.TipSetKey) (apitypes.NetworkVersion, error) {
 	if s.Internal.StateNetworkVersion == nil {
 		return *new(apitypes.NetworkVersion), ErrNotSupported
diff --git a/api/v0api/gateway.go b/api/v0api/gateway.go
index 674371c144c..2a0bfb2f7f4 100644
--- a/api/v0api/gateway.go
+++ b/api/v0api/gateway.go
@@ -14,6 +14,7 @@ import (
 
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/node/modules/dtypes"
 )
 
 //                       MODIFYING THE API INTERFACE
@@ -44,12 +45,15 @@ type Gateway interface {
 	ChainNotify(context.Context) (<-chan []*api.HeadChange, error)
 	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
 	GasEstimateMessageGas(ctx context.Context, msg *types.Message, spec *api.MessageSendSpec, tsk types.TipSetKey) (*types.Message, error)
+	MpoolGetNonce(ctx context.Context, addr address.Address) (uint64, error)
 	MpoolPush(ctx context.Context, sm *types.SignedMessage) (cid.Cid, error)
 	MsigGetAvailableBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (types.BigInt, error)
 	MsigGetVested(ctx context.Context, addr address.Address, start types.TipSetKey, end types.TipSetKey) (types.BigInt, error)
 	MsigGetPending(context.Context, address.Address, types.TipSetKey) ([]*api.MsigTransaction, error)
 	StateAccountKey(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
+	StateCall(ctx context.Context, msg *types.Message, tsk types.TipSetKey) (*api.InvocResult, error)
 	StateDealProviderCollateralBounds(ctx context.Context, size abi.PaddedPieceSize, verified bool, tsk types.TipSetKey) (api.DealCollateralBounds, error)
+	StateDecodeParams(ctx context.Context, toAddr address.Address, method abi.MethodNum, params []byte, tsk types.TipSetKey) (interface{}, error)
 	StateGetActor(ctx context.Context, actor address.Address, ts types.TipSetKey) (*types.Actor, error)
 	StateGetReceipt(context.Context, cid.Cid, types.TipSetKey) (*types.MessageReceipt, error)
 	StateListMiners(ctx context.Context, tsk types.TipSetKey) ([]address.Address, error)
@@ -59,6 +63,7 @@ type Gateway interface {
 	StateMinerInfo(ctx context.Context, actor address.Address, tsk types.TipSetKey) (api.MinerInfo, error)
 	StateMinerProvingDeadline(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*dline.Info, error)
 	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*api.MinerPower, error)
+	StateNetworkName(context.Context) (dtypes.NetworkName, error)
 	StateNetworkVersion(context.Context, types.TipSetKey) (abinetwork.Version, error)
 	StateSearchMsg(ctx context.Context, msg cid.Cid) (*api.MsgLookup, error)
 	StateSectorGetInfo(ctx context.Context, maddr address.Address, n abi.SectorNumber, tsk types.TipSetKey) (*miner.SectorOnChainInfo, error)
diff --git a/api/v0api/proxy_gen.go b/api/v0api/proxy_gen.go
index 5fa0d949c6f..17a1ae84ae5 100644
--- a/api/v0api/proxy_gen.go
+++ b/api/v0api/proxy_gen.go
@@ -451,6 +451,8 @@ type GatewayMethods struct {
 
 	GasEstimateMessageGas func(p0 context.Context, p1 *types.Message, p2 *api.MessageSendSpec, p3 types.TipSetKey) (*types.Message, error) ``
 
+	MpoolGetNonce func(p0 context.Context, p1 address.Address) (uint64, error) ``
+
 	MpoolPush func(p0 context.Context, p1 *types.SignedMessage) (cid.Cid, error) ``
 
 	MsigGetAvailableBalance func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (types.BigInt, error) ``
@@ -461,8 +463,12 @@ type GatewayMethods struct {
 
 	StateAccountKey func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (address.Address, error) ``
 
+	StateCall func(p0 context.Context, p1 *types.Message, p2 types.TipSetKey) (*api.InvocResult, error) ``
+
 	StateDealProviderCollateralBounds func(p0 context.Context, p1 abi.PaddedPieceSize, p2 bool, p3 types.TipSetKey) (api.DealCollateralBounds, error) ``
 
+	StateDecodeParams func(p0 context.Context, p1 address.Address, p2 abi.MethodNum, p3 []byte, p4 types.TipSetKey) (interface{}, error) ``
+
 	StateGetActor func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*types.Actor, error) ``
 
 	StateGetReceipt func(p0 context.Context, p1 cid.Cid, p2 types.TipSetKey) (*types.MessageReceipt, error) ``
@@ -481,6 +487,8 @@ type GatewayMethods struct {
 
 	StateMinerProvingDeadline func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*dline.Info, error) ``
 
+	StateNetworkName func(p0 context.Context) (dtypes.NetworkName, error) ``
+
 	StateNetworkVersion func(p0 context.Context, p1 types.TipSetKey) (abinetwork.Version, error) ``
 
 	StateSearchMsg func(p0 context.Context, p1 cid.Cid) (*api.MsgLookup, error) ``
@@ -2677,6 +2685,17 @@ func (s *GatewayStub) GasEstimateMessageGas(p0 context.Context, p1 *types.Messag
 	return nil, ErrNotSupported
 }
 
+func (s *GatewayStruct) MpoolGetNonce(p0 context.Context, p1 address.Address) (uint64, error) {
+	if s.Internal.MpoolGetNonce == nil {
+		return 0, ErrNotSupported
+	}
+	return s.Internal.MpoolGetNonce(p0, p1)
+}
+
+func (s *GatewayStub) MpoolGetNonce(p0 context.Context, p1 address.Address) (uint64, error) {
+	return 0, ErrNotSupported
+}
+
 func (s *GatewayStruct) MpoolPush(p0 context.Context, p1 *types.SignedMessage) (cid.Cid, error) {
 	if s.Internal.MpoolPush == nil {
 		return *new(cid.Cid), ErrNotSupported
@@ -2732,6 +2751,17 @@ func (s *GatewayStub) StateAccountKey(p0 context.Context, p1 address.Address, p2
 	return *new(address.Address), ErrNotSupported
 }
 
+func (s *GatewayStruct) StateCall(p0 context.Context, p1 *types.Message, p2 types.TipSetKey) (*api.InvocResult, error) {
+	if s.Internal.StateCall == nil {
+		return nil, ErrNotSupported
+	}
+	return s.Internal.StateCall(p0, p1, p2)
+}
+
+func (s *GatewayStub) StateCall(p0 context.Context, p1 *types.Message, p2 types.TipSetKey) (*api.InvocResult, error) {
+	return nil, ErrNotSupported
+}
+
 func (s *GatewayStruct) StateDealProviderCollateralBounds(p0 context.Context, p1 abi.PaddedPieceSize, p2 bool, p3 types.TipSetKey) (api.DealCollateralBounds, error) {
 	if s.Internal.StateDealProviderCollateralBounds == nil {
 		return *new(api.DealCollateralBounds), ErrNotSupported
@@ -2743,6 +2773,17 @@ func (s *GatewayStub) StateDealProviderCollateralBounds(p0 context.Context, p1 a
 	return *new(api.DealCollateralBounds), ErrNotSupported
 }
 
+func (s *GatewayStruct) StateDecodeParams(p0 context.Context, p1 address.Address, p2 abi.MethodNum, p3 []byte, p4 types.TipSetKey) (interface{}, error) {
+	if s.Internal.StateDecodeParams == nil {
+		return nil, ErrNotSupported
+	}
+	return s.Internal.StateDecodeParams(p0, p1, p2, p3, p4)
+}
+
+func (s *GatewayStub) StateDecodeParams(p0 context.Context, p1 address.Address, p2 abi.MethodNum, p3 []byte, p4 types.TipSetKey) (interface{}, error) {
+	return nil, ErrNotSupported
+}
+
 func (s *GatewayStruct) StateGetActor(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*types.Actor, error) {
 	if s.Internal.StateGetActor == nil {
 		return nil, ErrNotSupported
@@ -2842,6 +2883,17 @@ func (s *GatewayStub) StateMinerProvingDeadline(p0 context.Context, p1 address.A
 	return nil, ErrNotSupported
 }
 
+func (s *GatewayStruct) StateNetworkName(p0 context.Context) (dtypes.NetworkName, error) {
+	if s.Internal.StateNetworkName == nil {
+		return *new(dtypes.NetworkName), ErrNotSupported
+	}
+	return s.Internal.StateNetworkName(p0)
+}
+
+func (s *GatewayStub) StateNetworkName(p0 context.Context) (dtypes.NetworkName, error) {
+	return *new(dtypes.NetworkName), ErrNotSupported
+}
+
 func (s *GatewayStruct) StateNetworkVersion(p0 context.Context, p1 types.TipSetKey) (abinetwork.Version, error) {
 	if s.Internal.StateNetworkVersion == nil {
 		return *new(abinetwork.Version), ErrNotSupported
diff --git a/build/openrpc/full.json.gz b/build/openrpc/full.json.gz
index bb1567be5e8..0aaef1effe5 100644
Binary files a/build/openrpc/full.json.gz and b/build/openrpc/full.json.gz differ
diff --git a/build/openrpc/gateway.json.gz b/build/openrpc/gateway.json.gz
index 1014728087d..04a3f4fda29 100644
Binary files a/build/openrpc/gateway.json.gz and b/build/openrpc/gateway.json.gz differ
diff --git a/build/openrpc/miner.json.gz b/build/openrpc/miner.json.gz
index b23389baf84..fd7f08f50ca 100644
Binary files a/build/openrpc/miner.json.gz and b/build/openrpc/miner.json.gz differ
diff --git a/build/openrpc/worker.json.gz b/build/openrpc/worker.json.gz
index 1495059f96c..aeb92856137 100644
Binary files a/build/openrpc/worker.json.gz and b/build/openrpc/worker.json.gz differ
diff --git a/gateway/node.go b/gateway/node.go
index 90a6812b536..a97778eacc4 100644
--- a/gateway/node.go
+++ b/gateway/node.go
@@ -27,6 +27,7 @@ import (
 	_ "github.com/filecoin-project/lotus/lib/sigs/secp"
 	"github.com/filecoin-project/lotus/metrics"
 	"github.com/filecoin-project/lotus/node/impl/full"
+	"github.com/filecoin-project/lotus/node/modules/dtypes"
 )
 
 const (
@@ -59,18 +60,22 @@ type TargetAPI interface {
 	ChainPutObj(context.Context, blocks.Block) error
 	ChainGetGenesis(context.Context) (*types.TipSet, error)
 	GasEstimateMessageGas(ctx context.Context, msg *types.Message, spec *api.MessageSendSpec, tsk types.TipSetKey) (*types.Message, error)
+	MpoolGetNonce(ctx context.Context, addr address.Address) (uint64, error)
 	MpoolPushUntrusted(ctx context.Context, sm *types.SignedMessage) (cid.Cid, error)
 	MsigGetAvailableBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (types.BigInt, error)
 	MsigGetVested(ctx context.Context, addr address.Address, start types.TipSetKey, end types.TipSetKey) (types.BigInt, error)
 	MsigGetVestingSchedule(context.Context, address.Address, types.TipSetKey) (api.MsigVesting, error)
 	MsigGetPending(ctx context.Context, addr address.Address, ts types.TipSetKey) ([]*api.MsigTransaction, error)
 	StateAccountKey(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
+	StateCall(ctx context.Context, msg *types.Message, tsk types.TipSetKey) (*api.InvocResult, error)
 	StateDealProviderCollateralBounds(ctx context.Context, size abi.PaddedPieceSize, verified bool, tsk types.TipSetKey) (api.DealCollateralBounds, error)
+	StateDecodeParams(ctx context.Context, toAddr address.Address, method abi.MethodNum, params []byte, tsk types.TipSetKey) (interface{}, error)
 	StateGetActor(ctx context.Context, actor address.Address, ts types.TipSetKey) (*types.Actor, error)
 	StateLookupID(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
 	StateListMiners(ctx context.Context, tsk types.TipSetKey) ([]address.Address, error)
 	StateMarketBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (api.MarketBalance, error)
 	StateMarketStorageDeal(ctx context.Context, dealId abi.DealID, tsk types.TipSetKey) (*api.MarketDeal, error)
+	StateNetworkName(context.Context) (dtypes.NetworkName, error)
 	StateNetworkVersion(context.Context, types.TipSetKey) (network.Version, error)
 	StateSearchMsg(ctx context.Context, from types.TipSetKey, msg cid.Cid, limit abi.ChainEpoch, allowReplaced bool) (*api.MsgLookup, error)
 	StateWaitMsg(ctx context.Context, cid cid.Cid, confidence uint64, limit abi.ChainEpoch, allowReplaced bool) (*api.MsgLookup, error)
diff --git a/gateway/proxy_fil.go b/gateway/proxy_fil.go
index 1f6ee2ccc3c..bf6c2dff810 100644
--- a/gateway/proxy_fil.go
+++ b/gateway/proxy_fil.go
@@ -20,6 +20,7 @@ import (
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/lib/sigs"
+	"github.com/filecoin-project/lotus/node/modules/dtypes"
 )
 
 func (gw *Node) Discover(ctx context.Context) (apitypes.OpenRPCDocument, error) {
@@ -187,6 +188,13 @@ func (gw *Node) GasEstimateMessageGas(ctx context.Context, msg *types.Message, s
 	return gw.target.GasEstimateMessageGas(ctx, msg, spec, tsk)
 }
 
+func (gw *Node) MpoolGetNonce(ctx context.Context, addr address.Address) (uint64, error) {
+	if err := gw.limit(ctx, stateRateLimitTokens); err != nil {
+		return 0, err
+	}
+	return gw.target.MpoolGetNonce(ctx, addr)
+}
+
 func (gw *Node) MpoolPush(ctx context.Context, sm *types.SignedMessage) (cid.Cid, error) {
 	if err := gw.limit(ctx, stateRateLimitTokens); err != nil {
 		return cid.Cid{}, err
@@ -248,6 +256,16 @@ func (gw *Node) StateAccountKey(ctx context.Context, addr address.Address, tsk t
 	return gw.target.StateAccountKey(ctx, addr, tsk)
 }
 
+func (gw *Node) StateCall(ctx context.Context, msg *types.Message, tsk types.TipSetKey) (*api.InvocResult, error) {
+	if err := gw.limit(ctx, stateRateLimitTokens); err != nil {
+		return nil, err
+	}
+	if err := gw.checkTipsetKey(ctx, tsk); err != nil {
+		return nil, err
+	}
+	return gw.target.StateCall(ctx, msg, tsk)
+}
+
 func (gw *Node) StateDealProviderCollateralBounds(ctx context.Context, size abi.PaddedPieceSize, verified bool, tsk types.TipSetKey) (api.DealCollateralBounds, error) {
 	if err := gw.limit(ctx, stateRateLimitTokens); err != nil {
 		return api.DealCollateralBounds{}, err
@@ -258,6 +276,16 @@ func (gw *Node) StateDealProviderCollateralBounds(ctx context.Context, size abi.
 	return gw.target.StateDealProviderCollateralBounds(ctx, size, verified, tsk)
 }
 
+func (gw *Node) StateDecodeParams(ctx context.Context, toAddr address.Address, method abi.MethodNum, params []byte, tsk types.TipSetKey) (interface{}, error) {
+	if err := gw.limit(ctx, stateRateLimitTokens); err != nil {
+		return nil, err
+	}
+	if err := gw.checkTipsetKey(ctx, tsk); err != nil {
+		return nil, err
+	}
+	return gw.target.StateDecodeParams(ctx, toAddr, method, params, tsk)
+}
+
 func (gw *Node) StateGetActor(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*types.Actor, error) {
 	if err := gw.limit(ctx, stateRateLimitTokens); err != nil {
 		return nil, err
@@ -308,6 +336,13 @@ func (gw *Node) StateMarketStorageDeal(ctx context.Context, dealId abi.DealID, t
 	return gw.target.StateMarketStorageDeal(ctx, dealId, tsk)
 }
 
+func (gw *Node) StateNetworkName(ctx context.Context) (dtypes.NetworkName, error) {
+	if err := gw.limit(ctx, stateRateLimitTokens); err != nil {
+		return *new(dtypes.NetworkName), err
+	}
+	return gw.target.StateNetworkName(ctx)
+}
+
 func (gw *Node) StateNetworkVersion(ctx context.Context, tsk types.TipSetKey) (network.Version, error) {
 	if err := gw.limit(ctx, stateRateLimitTokens); err != nil {
 		return network.VersionMax, err