diff --git a/pkg/neofs/client-plant.go b/pkg/neofs/client-plant.go
deleted file mode 100644
index 6cf4d900..00000000
--- a/pkg/neofs/client-plant.go
+++ /dev/null
@@ -1,39 +0,0 @@
-package neofs
-
-import (
-	"context"
-	"crypto/ecdsa"
-
-	"github.com/nspcc-dev/neofs-api-go/pkg/client"
-	"github.com/nspcc-dev/neofs-api-go/pkg/owner"
-	"github.com/nspcc-dev/neofs-api-go/pkg/token"
-	"github.com/nspcc-dev/neofs-sdk-go/pkg/pool"
-)
-
-// ClientPlant provides connections to NeoFS nodes from pool and allows to
-// get local owner ID.
-type ClientPlant interface {
-	ConnectionArtifacts() (client.Client, *token.SessionToken, error)
-	OwnerID() *owner.ID
-}
-
-type neofsClientPlant struct {
-	key     *ecdsa.PrivateKey
-	ownerID *owner.ID
-	pool    pool.Pool
-}
-
-// ConnectionArtifacts returns connection from pool.
-func (cp *neofsClientPlant) ConnectionArtifacts() (client.Client, *token.SessionToken, error) {
-	return cp.pool.ConnectionArtifacts()
-}
-
-// OwnerID returns plant's owner ID.
-func (cp *neofsClientPlant) OwnerID() *owner.ID {
-	return cp.ownerID
-}
-
-// NewClientPlant creates new ClientPlant from given context, pool and credentials.
-func NewClientPlant(ctx context.Context, pool pool.Pool, creds Credentials) (ClientPlant, error) {
-	return &neofsClientPlant{key: creds.PrivateKey(), ownerID: creds.Owner(), pool: pool}, nil
-}
diff --git a/pkg/neofs/credentials.go b/pkg/neofs/credentials.go
deleted file mode 100644
index c229468d..00000000
--- a/pkg/neofs/credentials.go
+++ /dev/null
@@ -1,78 +0,0 @@
-package neofs
-
-import (
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rand"
-	"math/big"
-
-	"github.com/nspcc-dev/neofs-api-go/pkg/owner"
-	crypto "github.com/nspcc-dev/neofs-crypto"
-)
-
-type (
-	// Credentials contains methods that needed to work with NeoFS.
-	Credentials interface {
-		Owner() *owner.ID
-		PublicKey() *ecdsa.PublicKey
-		PrivateKey() *ecdsa.PrivateKey
-	}
-
-	credentials struct {
-		key     *ecdsa.PrivateKey
-		ownerID *owner.ID
-	}
-)
-
-// NewCredentials creates an instance of Credentials through string
-// representation of secret. It allows passing WIF, path, hex-encoded and others.
-func NewCredentials(secret string) (Credentials, error) {
-	key, err := crypto.LoadPrivateKey(secret)
-	if err != nil {
-		return nil, err
-	}
-	return setFromPrivateKey(key)
-}
-
-// NewEphemeralCredentials creates new private key and Credentials based on that
-// key.
-func NewEphemeralCredentials() (Credentials, error) {
-	c := elliptic.P256()
-	priv, x, y, err := elliptic.GenerateKey(c, rand.Reader)
-	if err != nil {
-		return nil, err
-	}
-	key := &ecdsa.PrivateKey{
-		PublicKey: ecdsa.PublicKey{
-			Curve: c,
-			X:     x,
-			Y:     y,
-		},
-		D: new(big.Int).SetBytes(priv),
-	}
-	return setFromPrivateKey(key)
-}
-
-// PrivateKey returns ecdsa.PrivateKey.
-func (c *credentials) PrivateKey() *ecdsa.PrivateKey {
-	return c.key
-}
-
-// PublicKey returns ecdsa.PublicKey.
-func (c *credentials) PublicKey() *ecdsa.PublicKey {
-	return &c.key.PublicKey
-}
-
-// Owner returns owner.ID.
-func (c *credentials) Owner() *owner.ID {
-	return c.ownerID
-}
-
-func setFromPrivateKey(key *ecdsa.PrivateKey) (*credentials, error) {
-	wallet, err := owner.NEO3WalletFromPublicKey(&key.PublicKey)
-	if err != nil {
-		return nil, err
-	}
-	ownerID := owner.NewIDFromNeo3Wallet(wallet)
-	return &credentials{key: key, ownerID: ownerID}, nil
-}
diff --git a/pkg/pool/key.go b/pkg/pool/key.go
new file mode 100644
index 00000000..b7982c75
--- /dev/null
+++ b/pkg/pool/key.go
@@ -0,0 +1,27 @@
+package pool
+
+import (
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"math/big"
+)
+
+// NewEphemeralKey creates new private key used for NeoFS session. It'll be
+// removed after refactoring to use neo-go crypto library.
+func NewEphemeralKey() (*ecdsa.PrivateKey, error) {
+	c := elliptic.P256()
+	priv, x, y, err := elliptic.GenerateKey(c, rand.Reader)
+	if err != nil {
+		return nil, err
+	}
+	key := &ecdsa.PrivateKey{
+		PublicKey: ecdsa.PublicKey{
+			Curve: c,
+			X:     x,
+			Y:     y,
+		},
+		D: new(big.Int).SetBytes(priv),
+	}
+	return key, nil
+}
diff --git a/pkg/pool/pool.go b/pkg/pool/pool.go
index 7dd12212..3aacc469 100644
--- a/pkg/pool/pool.go
+++ b/pkg/pool/pool.go
@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/nspcc-dev/neofs-api-go/pkg/client"
+	"github.com/nspcc-dev/neofs-api-go/pkg/owner"
 	"github.com/nspcc-dev/neofs-api-go/pkg/token"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/keepalive"
@@ -77,12 +78,13 @@ func (pb *Builder) Build(ctx context.Context, options *BuilderOptions) (Pool, er
 	}
 	options.weights = pb.weights
 	options.connections = cons
-	return new(ctx, options)
+	return newPool(ctx, options)
 }
 
 // Pool is an interface providing connection artifacts on request.
 type Pool interface {
-	ConnectionArtifacts() (client.Client, *token.SessionToken, error)
+	Connection() (client.Client, *token.SessionToken, error)
+	OwnerID() *owner.ID
 }
 
 type clientPack struct {
@@ -94,10 +96,11 @@ type clientPack struct {
 type pool struct {
 	lock        sync.RWMutex
 	sampler     *Sampler
+	owner       *owner.ID
 	clientPacks []*clientPack
 }
 
-func new(ctx context.Context, options *BuilderOptions) (Pool, error) {
+func newPool(ctx context.Context, options *BuilderOptions) (Pool, error) {
 	clientPacks := make([]*clientPack, len(options.weights))
 	for i, con := range options.connections {
 		c, err := client.New(client.WithDefaultPrivateKey(options.Key), client.WithGRPCConnection(con))
@@ -116,7 +119,13 @@ func new(ctx context.Context, options *BuilderOptions) (Pool, error) {
 	}
 	source := rand.NewSource(time.Now().UnixNano())
 	sampler := NewSampler(options.weights, source)
-	pool := &pool{sampler: sampler, clientPacks: clientPacks}
+	wallet, err := owner.NEO3WalletFromPublicKey(&options.Key.PublicKey)
+	if err != nil {
+		return nil, err
+	}
+	ownerID := owner.NewIDFromNeo3Wallet(wallet)
+
+	pool := &pool{sampler: sampler, owner: ownerID, clientPacks: clientPacks}
 	go func() {
 		ticker := time.NewTimer(options.ClientRebalanceInterval)
 		for range ticker.C {
@@ -139,7 +148,7 @@ func new(ctx context.Context, options *BuilderOptions) (Pool, error) {
 	return pool, nil
 }
 
-func (p *pool) ConnectionArtifacts() (client.Client, *token.SessionToken, error) {
+func (p *pool) Connection() (client.Client, *token.SessionToken, error) {
 	p.lock.RLock()
 	defer p.lock.RUnlock()
 	if len(p.clientPacks) == 1 {
@@ -158,3 +167,7 @@ func (p *pool) ConnectionArtifacts() (client.Client, *token.SessionToken, error)
 	}
 	return nil, nil, errors.New("no healthy client")
 }
+
+func (p *pool) OwnerID() *owner.ID {
+	return p.owner
+}