Add the following:

* New base cosmos proto for pagination
* Osmosis specific protos for Epoch and Protorev specific query endpoints
* Codegen and wrappers for RPC querying of Epoch and Protorev:
   * EpochInfos endpoint
   * GetProtoRevDeveloperAccount endpoint

main.go

@@ -8,6 +8,7 @@ import (
 	gammTypes "github.com/DefiantLabs/probe/client/codec/osmosis/v15/x/gamm/types"
 	poolmanagerTypes "github.com/DefiantLabs/probe/client/codec/osmosis/v15/x/poolmanager/types"
 	querier "github.com/DefiantLabs/probe/query"
+	osmosisQueryTypes "github.com/DefiantLabs/probe/query/osmosis"
 	cosmosTypes "github.com/cosmos/cosmos-sdk/types"
 	cquery "github.com/cosmos/cosmos-sdk/types/query"
 	ibcChanTypes "github.com/cosmos/ibc-go/v7/modules/core/04-channel/types"
@@ -110,6 +111,40 @@ func main() {
 			}
 		}
 	}
+
+	// Osmosis specific querying proof of concepts
+
+	// Get the latest Epoch data
+
+	if cconfig.ChainID == "osmosis-1" {
+		epochData, err := osmosisQueryTypes.EpochsAtHeightRPC(&query, checkHeight)
+
+		if err != nil {
+			fmt.Println("Error getting epoch results")
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		fmt.Println("Got epoch results, some data follows:")
+		for _, epoch := range epochData.Epochs {
+			fmt.Printf("Epoch Identifier: %+v\n", epoch.Identifier)
+			fmt.Printf("Epoch Current Start Height: %+v\n", epoch.CurrentEpochStartHeight)
+			fmt.Printf("Epoch Duration: %+v\n", epoch.Duration)
+		}
+
+		protorevDevAccountData, err := osmosisQueryTypes.ProtorevDeveloperAccountRPC(&query)
+
+		if err != nil {
+			fmt.Println("Error getting protorev results")
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		fmt.Println("Got protorev results, some data follows:")
+		fmt.Println("Protorev Developer Account Address: ", protorevDevAccountData.DeveloperAccount)
+
+	}
+
 }
 
 var handlers = map[string]func(cosmosTypes.Msg){

proto/osmosis/epochs/v1beta1/query.proto

@@ -0,0 +1,78 @@
+syntax = "proto3";
+package osmosis.epochs.v1beta1;
+
+import "gogoproto/gogo.proto";
+import "cosmos/base/query/v1beta1/pagination.proto";
+import "google/protobuf/duration.proto";
+import "google/protobuf/timestamp.proto";
+
+option go_package = "github.com/DefiantLabs/probe/client/codec/osmosis/v15/x/epochs/types";
+
+// Query defines the gRPC querier service.
+service Query {
+  // EpochInfos provide running epochInfos
+  rpc EpochInfos(QueryEpochsInfoRequest) returns (QueryEpochsInfoResponse) {
+  }
+}
+
+message QueryEpochsInfoRequest {}
+message QueryEpochsInfoResponse {
+  repeated EpochInfo epochs = 1 [ (gogoproto.nullable) = false ];
+}
+
+message EpochInfo {
+    // identifier is a unique reference to this particular timer.
+    string identifier = 1;
+    // start_time is the time at which the timer first ever ticks.
+    // If start_time is in the future, the epoch will not begin until the start
+    // time.
+    google.protobuf.Timestamp start_time = 2 [
+      (gogoproto.stdtime) = true,
+      (gogoproto.nullable) = false,
+      (gogoproto.moretags) = "yaml:\"start_time\""
+    ];
+    // duration is the time in between epoch ticks.
+    // In order for intended behavior to be met, duration should
+    // be greater than the chains expected block time.
+    // Duration must be non-zero.
+    google.protobuf.Duration duration = 3 [
+      (gogoproto.nullable) = false,
+      (gogoproto.stdduration) = true,
+      (gogoproto.jsontag) = "duration,omitempty",
+      (gogoproto.moretags) = "yaml:\"duration\""
+    ];
+    // current_epoch is the current epoch number, or in other words,
+    // how many times has the timer 'ticked'.
+    // The first tick (current_epoch=1) is defined as
+    // the first block whose blocktime is greater than the EpochInfo start_time.
+    int64 current_epoch = 4;
+    // current_epoch_start_time describes the start time of the current timer
+    // interval. The interval is (current_epoch_start_time,
+    // current_epoch_start_time + duration] When the timer ticks, this is set to
+    // current_epoch_start_time = last_epoch_start_time + duration only one timer
+    // tick for a given identifier can occur per block.
+    //
+    // NOTE! The current_epoch_start_time may diverge significantly from the
+    // wall-clock time the epoch began at. Wall-clock time of epoch start may be
+    // >> current_epoch_start_time. Suppose current_epoch_start_time = 10,
+    // duration = 5. Suppose the chain goes offline at t=14, and comes back online
+    // at t=30, and produces blocks at every successive time. (t=31, 32, etc.)
+    // * The t=30 block will start the epoch for (10, 15]
+    // * The t=31 block will start the epoch for (15, 20]
+    // * The t=32 block will start the epoch for (20, 25]
+    // * The t=33 block will start the epoch for (25, 30]
+    // * The t=34 block will start the epoch for (30, 35]
+    // * The **t=36** block will start the epoch for (35, 40]
+    google.protobuf.Timestamp current_epoch_start_time = 5 [
+      (gogoproto.stdtime) = true,
+      (gogoproto.nullable) = false,
+      (gogoproto.moretags) = "yaml:\"current_epoch_start_time\""
+    ];
+    // epoch_counting_started is a boolean, that indicates whether this
+    // epoch timer has began yet.
+    bool epoch_counting_started = 6;
+    reserved 7;
+    // current_epoch_start_height is the block height at which the current epoch
+    // started. (The block height at which the timer last ticked)
+    int64 current_epoch_start_height = 8;
+  }

proto/osmosis/protorev/v1beta1/query.proto

@@ -0,0 +1,29 @@
+syntax = "proto3";
+package osmosis.protorev.v1beta1;
+
+import "gogoproto/gogo.proto";
+import "cosmos/base/query/v1beta1/pagination.proto";
+
+option go_package = "github.com/DefiantLabs/probe/client/codec/osmosis/v15/x/protorev/types";
+
+// Query defines the gRPC querier service.
+service Query {
+
+  // GetProtoRevDeveloperAccount queries the developer account of the module
+  rpc GetProtoRevDeveloperAccount(QueryGetProtoRevDeveloperAccountRequest)
+      returns (QueryGetProtoRevDeveloperAccountResponse) {
+  }
+
+}
+
+// QueryGetProtoRevDeveloperAccountRequest is request type for the
+// Query/GetProtoRevDeveloperAccount RPC method.
+message QueryGetProtoRevDeveloperAccountRequest {}
+
+// QueryGetProtoRevDeveloperAccountResponse is response type for the
+// Query/GetProtoRevDeveloperAccount RPC method.
+message QueryGetProtoRevDeveloperAccountResponse {
+  // developer_account is the developer account of the module
+  string developer_account = 1
+      [ (gogoproto.moretags) = "yaml:\"developer_account\"" ];
+}

query/osmosis/epochs.go

@@ -0,0 +1,40 @@
+package query
+
+import (
+	"fmt"
+
+	epochsTypes "github.com/DefiantLabs/probe/client/codec/osmosis/v15/x/epochs/types"
+	queryTypes "github.com/DefiantLabs/probe/query"
+	coretypes "github.com/cometbft/cometbft/rpc/core/types"
+)
+
+func EpochsAtHeightRPC(q *queryTypes.Query, height int64) (*epochsTypes.QueryEpochsInfoResponse, error) {
+	req := epochsTypes.QueryEpochsInfoRequest{}
+	queryClient := epochsTypes.NewQueryClient(q.Client)
+
+	if height > 0 {
+		q.Options.Height = height
+	}
+
+	ctx, cancel := q.GetQueryContext()
+	defer cancel()
+	res, err := queryClient.EpochInfos(ctx, &req)
+	if err != nil {
+		return nil, err
+	}
+	return res, nil
+}
+
+// BlockSearchEpochStartsLessThanHeightRPC searches for blocks with the epoch_start.epoch_number event with height less than the given height. This query only makes sense for Osmosis, which has the Epoch module emitting this event
+// in the BeginBlock events.
+func BlockSearchEpochStartsLessThanHeightRPC(q *queryTypes.Query, height int64, page int, perPage int) (*coretypes.ResultBlockSearch, error) {
+	ctx, cancel := q.GetQueryContext()
+	defer cancel()
+
+	resp, err := q.Client.RPCClient.BlockSearch(ctx, fmt.Sprintf("block.height<%d AND epoch_start.epoch_number EXISTS", height), &page, &perPage, "")
+	if err != nil {
+		return nil, err
+	}
+
+	return resp, nil
+}

query/osmosis/protorev.go

@@ -0,0 +1,18 @@
+package query
+
+import (
+	protorevTypes "github.com/DefiantLabs/probe/client/codec/osmosis/v15/x/protorev/types"
+	queryTypes "github.com/DefiantLabs/probe/query"
+)
+
+func ProtorevDeveloperAccountRPC(q *queryTypes.Query) (*protorevTypes.QueryGetProtoRevDeveloperAccountResponse, error) {
+	req := protorevTypes.QueryGetProtoRevDeveloperAccountRequest{}
+	queryClient := protorevTypes.NewQueryClient(q.Client)
+	ctx, cancel := q.GetQueryContext()
+	defer cancel()
+	res, err := queryClient.GetProtoRevDeveloperAccount(ctx, &req)
+	if err != nil {
+		return nil, err
+	}
+	return res, nil
+}

third_party/proto/cosmos/base/query/v1beta1/pagination.proto

@@ -0,0 +1,50 @@
+syntax = "proto3";
+package cosmos.base.query.v1beta1;
+
+option go_package = "github.com/cosmos/cosmos-sdk/types/query";
+
+// PageRequest is to be embedded in gRPC request messages for efficient
+// pagination. Ex:
+//
+//  message SomeRequest {
+//          Foo some_parameter = 1;
+//          PageRequest pagination = 2;
+//  }
+message PageRequest {
+  // key is a value returned in PageResponse.next_key to begin
+  // querying the next page most efficiently. Only one of offset or key
+  // should be set.
+  bytes key = 1;
+
+  // offset is a numeric offset that can be used when key is unavailable.
+  // It is less efficient than using key. Only one of offset or key should
+  // be set.
+  uint64 offset = 2;
+
+  // limit is the total number of results to be returned in the result page.
+  // If left empty it will default to a value to be set by each app.
+  uint64 limit = 3;
+
+  // count_total is set to true  to indicate that the result set should include
+  // a count of the total number of items available for pagination in UIs.
+  // count_total is only respected when offset is used. It is ignored when key
+  // is set.
+  bool count_total = 4;
+}
+
+// PageResponse is to be embedded in gRPC response messages where the
+// corresponding request message has used PageRequest.
+//
+//  message SomeResponse {
+//          repeated Bar results = 1;
+//          PageResponse page = 2;
+//  }
+message PageResponse {
+  // next_key is the key to be passed to PageRequest.key to
+  // query the next page most efficiently
+  bytes next_key = 1;
+
+  // total is total number of results available if PageRequest.count_total
+  // was set, its value is undefined otherwise
+  uint64 total = 2;
+}