diff --git a/PENDING.md b/PENDING.md
index 3708b7bae7ea..b6021332fa24 100644
--- a/PENDING.md
+++ b/PENDING.md
@@ -39,6 +39,7 @@
 
 ### Gaia CLI
 
+* [\#3841](https://github.com/cosmos/cosmos-sdk/pull/3841) Add indent to JSON of `gaiacli keys [add|show|list]`
 * [\#3859](https://github.com/cosmos/cosmos-sdk/pull/3859) Add newline to echo of `gaiacli keys ...`
 
 ### Gaia
diff --git a/client/keys/add.go b/client/keys/add.go
index bf5901e65595..7ab5ecdb8a9c 100644
--- a/client/keys/add.go
+++ b/client/keys/add.go
@@ -74,6 +74,7 @@ the flag --nosort is set.
 	cmd.Flags().Bool(flagDryRun, false, "Perform action, but don't add key to local keystore")
 	cmd.Flags().Uint32(flagAccount, 0, "Account number for HD derivation")
 	cmd.Flags().Uint32(flagIndex, 0, "Address index number for HD derivation")
+	cmd.Flags().Bool(client.FlagIndentResponse, false, "Add indent to JSON response")
 	return cmd
 }
 
diff --git a/client/keys/list.go b/client/keys/list.go
index db4cf0fe2f71..19873aabb77b 100644
--- a/client/keys/list.go
+++ b/client/keys/list.go
@@ -1,17 +1,20 @@
 package keys
 
 import (
+	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/spf13/cobra"
 )
 
 func listKeysCmd() *cobra.Command {
-	return &cobra.Command{
+	cmd := &cobra.Command{
 		Use:   "list",
 		Short: "List all keys",
 		Long: `Return a list of all public keys stored by this key manager
 along with their associated name and address.`,
 		RunE: runListCmd,
 	}
+	cmd.Flags().Bool(client.FlagIndentResponse, false, "Add indent to JSON response")
+	return cmd
 }
 
 func runListCmd(cmd *cobra.Command, args []string) error {
diff --git a/client/keys/show.go b/client/keys/show.go
index e1d253cd3727..eaa800e11fbe 100644
--- a/client/keys/show.go
+++ b/client/keys/show.go
@@ -3,6 +3,7 @@ package keys
 import (
 	"errors"
 	"fmt"
+	"github.com/cosmos/cosmos-sdk/client"
 
 	"github.com/cosmos/cosmos-sdk/crypto"
 	"github.com/cosmos/cosmos-sdk/crypto/keys"
@@ -49,6 +50,7 @@ consisting of all the keys provided by name and multisig threshold.`,
 	cmd.Flags().BoolP(FlagDevice, "d", false, "Output the address in the device")
 	cmd.Flags().Uint(flagMultiSigThreshold, 1, "K out of N required signatures")
 	cmd.Flags().BoolP(flagShowMultiSig, "m", false, "Output multisig pubkey constituents, threshold, and weights")
+	cmd.Flags().Bool(client.FlagIndentResponse, false, "Add indent to JSON response")
 
 	return cmd
 }
diff --git a/client/keys/utils.go b/client/keys/utils.go
index 3dfcd735beaf..c86161038435 100644
--- a/client/keys/utils.go
+++ b/client/keys/utils.go
@@ -119,7 +119,13 @@ func printKeyInfo(keyInfo keys.Info, bechKeyOut bechKeyOutFn) {
 		printKeyOutput(ko)
 
 	case OutputFormatJSON:
-		out, err := MarshalJSON(ko)
+		var out []byte
+		var err error
+		if viper.GetBool(client.FlagIndentResponse) {
+			out, err = cdc.MarshalJSONIndent(ko, "", "  ")
+		} else {
+			out, err = cdc.MarshalJSON(ko)
+		}
 		if err != nil {
 			panic(err)
 		}
@@ -142,11 +148,18 @@ func printInfos(infos []keys.Info) {
 		}
 
 	case OutputFormatJSON:
-		out, err := MarshalJSON(kos)
+		var out []byte
+		var err error
+
+		if viper.GetBool(client.FlagIndentResponse) {
+			out, err = cdc.MarshalJSONIndent(kos, "", "  ")
+		} else {
+			out, err = cdc.MarshalJSON(kos)
+		}
+
 		if err != nil {
 			panic(err)
 		}
-
 		fmt.Println(string(out))
 	}
 }