diff --git a/.github/workflows/interchaintest.yml b/.github/workflows/interchaintest.yml
index f136b26d1..b31ab3c1e 100644
--- a/.github/workflows/interchaintest.yml
+++ b/.github/workflows/interchaintest.yml
@@ -152,4 +152,8 @@ jobs:
             ${{ runner.os }}-go-
 
       - name: interchaintest
-        run: make interchaintest-scenario
\ No newline at end of file
+        run: make interchaintest-scenario
+  
+      - name: Prune Docker images
+        if: always() #ensure dangling images are pruned after interchain-test scenario  passes or fails
+        run: docker image prune -f
diff --git a/cmd/appstate.go b/cmd/appstate.go
index d6378bb8a..5017df85e 100644
--- a/cmd/appstate.go
+++ b/cmd/appstate.go
@@ -251,3 +251,34 @@ func (a *appState) updatePathConfig(
 		return nil
 	})
 }
+
+func (a *appState) useKey(chainName, key string) error {
+
+	chain, exists := a.config.Chains[chainName]
+	if !exists {
+		return fmt.Errorf("chain %s not found in config", chainName)
+	}
+
+	cc := chain.ChainProvider
+
+	info, err := cc.ListAddresses()
+	if err != nil {
+		return err
+	}
+	value, exists := info[key]
+	currentValue := a.config.Chains[chainName].ChainProvider.Key()
+
+	if currentValue == key {
+		return fmt.Errorf("config is already using %s -> %s for %s", key, value, cc.ChainName())
+	}
+
+	if exists {
+		fmt.Printf("Config will now use  %s -> %s  for %s\n", key, value, cc.ChainName())
+	} else {
+		return fmt.Errorf("key %s does not exist for chain %s", key, cc.ChainName())
+	}
+	return a.performConfigLockingOperation(context.Background(), func() error {
+		a.config.Chains[chainName].ChainProvider.UseKey(key)
+		return nil
+	})
+}
diff --git a/cmd/config.go b/cmd/config.go
index 9888a4596..80ae95e4c 100644
--- a/cmd/config.go
+++ b/cmd/config.go
@@ -395,8 +395,8 @@ func UnmarshalJSONProviderConfig(data []byte, customTypes map[string]reflect.Typ
 	}
 
 	typeName, ok := m["type"].(string)
-		if !ok {
-		return nil, errors.New("cannot find type");
+	if !ok {
+		return nil, errors.New("cannot find type")
 	}
 
 	var provCfg provider.ProviderConfig
diff --git a/cmd/keys.go b/cmd/keys.go
index 0ddd447d4..fb09cf46f 100644
--- a/cmd/keys.go
+++ b/cmd/keys.go
@@ -45,6 +45,7 @@ func keysCmd(a *appState) *cobra.Command {
 
 	cmd.AddCommand(
 		keysAddCmd(a),
+		keysUseCmd(a),
 		keysRestoreCmd(a),
 		keysDeleteCmd(a),
 		keysListCmd(a),
@@ -55,6 +56,22 @@ func keysCmd(a *appState) *cobra.Command {
 	return cmd
 }
 
+func keysUseCmd(a *appState) *cobra.Command {
+
+	cmd := &cobra.Command{
+		Use:     "use chain_name key_name",
+		Aliases: []string{"a"},
+		Short:   "Use a key from the keychain associated with a particular chain. Look at ~/.relayer/keys/ibc-0/keyring-test ",
+		Args:    withUsage(cobra.ExactArgs(2)),
+		Example: strings.TrimSpace(fmt.Sprintf(`
+$ %s keys use ibc-0 key_name`, appName)),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return a.useKey(args[0], args[1])
+		},
+	}
+	return cmd
+}
+
 // keysAddCmd respresents the `keys add` command
 func keysAddCmd(a *appState) *cobra.Command {
 	cmd := &cobra.Command{
diff --git a/relayer/chains/cosmos/keys.go b/relayer/chains/cosmos/keys.go
index 858f77505..ce6c2a2ef 100644
--- a/relayer/chains/cosmos/keys.go
+++ b/relayer/chains/cosmos/keys.go
@@ -4,6 +4,8 @@ import (
 	"errors"
 	"os"
 
+	"github.com/cosmos/relayer/v2/relayer/provider"
+
 	ckeys "github.com/cosmos/cosmos-sdk/client/keys"
 	"github.com/cosmos/cosmos-sdk/crypto/hd"
 	"github.com/cosmos/cosmos-sdk/crypto/keyring"
@@ -12,7 +14,6 @@ import (
 	"github.com/cosmos/relayer/v2/relayer/chains/cosmos/keys/sr25519"
 	"github.com/cosmos/relayer/v2/relayer/codecs/ethermint"
 	"github.com/cosmos/relayer/v2/relayer/codecs/injective"
-	"github.com/cosmos/relayer/v2/relayer/provider"
 )
 
 const ethereumCoinType = uint32(60)
@@ -69,6 +70,13 @@ func (cc *CosmosProvider) AddKey(name string, coinType uint32, signingAlgorithm
 	return ko, nil
 }
 
+// Updates config.yaml chain with the specified key.
+// It fails config is  already using the same key or if the key does not exist
+func (cc *CosmosProvider) UseKey(key string) error {
+	cc.PCfg.Key = key
+	return nil
+}
+
 // RestoreKey converts a mnemonic to a private key and BIP-39 HD Path and persists it to the keystore.
 // It fails if there is an existing key with the same address.
 func (cc *CosmosProvider) RestoreKey(name, mnemonic string, coinType uint32, signingAlgorithm string) (address string, err error) {
diff --git a/relayer/chains/penumbra/keys.go b/relayer/chains/penumbra/keys.go
index aa09fa7b1..0c6131fda 100644
--- a/relayer/chains/penumbra/keys.go
+++ b/relayer/chains/penumbra/keys.go
@@ -66,6 +66,13 @@ func (cc *PenumbraProvider) AddKey(name string, coinType uint32, signingAlgorith
 	return ko, nil
 }
 
+// Updates config.yaml chain with the specified key.
+// It fails config is  already using the same key or if the key does not exist
+func (cc *PenumbraProvider) UseKey(key string) error {
+	cc.PCfg.Key = key
+	return nil
+}
+
 // RestoreKey converts a mnemonic to a private key and BIP-39 HD Path and persists it to the keystore.
 // It fails if there is an existing key with the same address.
 func (cc *PenumbraProvider) RestoreKey(name, mnemonic string, coinType uint32, signingAlgorithm string) (address string, err error) {
diff --git a/relayer/provider/provider.go b/relayer/provider/provider.go
index 34cee434d..2bce8c2c4 100644
--- a/relayer/provider/provider.go
+++ b/relayer/provider/provider.go
@@ -216,6 +216,7 @@ type KeyProvider interface {
 	CreateKeystore(path string) error
 	KeystoreCreated(path string) bool
 	AddKey(name string, coinType uint32, signingAlgorithm string) (output *KeyOutput, err error)
+	UseKey(key string) error
 	RestoreKey(name, mnemonic string, coinType uint32, signingAlgorithm string) (address string, err error)
 	ShowAddress(name string) (address string, err error)
 	ListAddresses() (map[string]string, error)