diff --git a/database/postgres/db.go b/database/postgres/db.go
index 6096c42..0d0e73e 100644
--- a/database/postgres/db.go
+++ b/database/postgres/db.go
@@ -89,11 +89,11 @@ func (d *DB) Comments() repositories.CommentRepository {
 }
 
 func (d *DB) Keys() repositories.KeyRepository {
-	panic("implement me")
+	return &keyRepository{insertWithIDs: d.insertWithIDs, db: d.db}
 }
 
 func (d *DB) Users() repositories.UserRepository {
-	panic("implement me")
+	return &userRepository{db: d.db}
 }
 
 func (d *DB) Files() repositories.FileRepository {
diff --git a/database/postgres/keys.go b/database/postgres/keys.go
new file mode 100644
index 0000000..e552b76
--- /dev/null
+++ b/database/postgres/keys.go
@@ -0,0 +1,82 @@
+package postgres
+
+import (
+	"context"
+	"database/sql"
+	"git.aiterp.net/rpdata/api/database/postgres/psqlcore"
+	"git.aiterp.net/rpdata/api/internal/generate"
+	"git.aiterp.net/rpdata/api/models"
+)
+
+type keyRepository struct {
+	db            *sql.DB
+	insertWithIDs bool
+}
+
+func (r *keyRepository) Find(ctx context.Context, id string) (*models.Key, error) {
+	key, err := psqlcore.New(r.db).SelectKey(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+
+	return &models.Key{
+		ID:     key.ID,
+		Name:   key.Name,
+		User:   key.User,
+		Secret: key.Secret,
+	}, nil
+}
+
+func (r *keyRepository) List(ctx context.Context, filter models.KeyFilter) ([]*models.Key, error) {
+	var keys []psqlcore.Key
+
+	if filter.UserID != nil {
+		keys2, err := psqlcore.New(r.db).SelectKeysByUser(ctx, *filter.UserID)
+		if err != nil {
+			return nil, err
+		}
+
+		keys = keys2
+	} else {
+		keys2, err := psqlcore.New(r.db).SelectKeys(ctx)
+		if err != nil {
+			return nil, err
+		}
+
+		keys = keys2
+	}
+
+	results := make([]*models.Key, 0, len(keys))
+	for _, key := range keys {
+		results = append(results, &models.Key{
+			ID:     key.ID,
+			Name:   key.Name,
+			User:   key.User,
+			Secret: key.Secret,
+		})
+	}
+
+	return results, nil
+}
+
+func (r *keyRepository) Insert(ctx context.Context, key models.Key) (*models.Key, error) {
+	if !r.insertWithIDs || len(key.ID) < 4 {
+		key.ID = generate.KeyID()
+	}
+
+	err := psqlcore.New(r.db).InsertKey(ctx, psqlcore.InsertKeyParams{
+		ID:     key.ID,
+		Name:   key.Name,
+		UserID: key.User,
+		Secret: key.Secret,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &key, nil
+}
+
+func (r *keyRepository) Delete(ctx context.Context, key models.Key) error {
+	return psqlcore.New(r.db).DeleteKey(ctx, key.ID)
+}
diff --git a/database/postgres/migrations/20210328163342_create_table_key.sql b/database/postgres/migrations/20210328163342_create_table_key.sql
new file mode 100644
index 0000000..95a80ed
--- /dev/null
+++ b/database/postgres/migrations/20210328163342_create_table_key.sql
@@ -0,0 +1,14 @@
+-- +goose Up
+-- +goose StatementBegin
+CREATE TABLE key (
+    id TEXT NOT NULL PRIMARY KEY,
+    name TEXT NOT NULL,
+    "user" TEXT NOT NULL,
+    secret TEXT NOT NULL
+);
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+DROP TABLE key;
+-- +goose StatementEnd
diff --git a/database/postgres/migrations/20210328163346_create_table_user.sql b/database/postgres/migrations/20210328163346_create_table_user.sql
new file mode 100644
index 0000000..f7e7fc7
--- /dev/null
+++ b/database/postgres/migrations/20210328163346_create_table_user.sql
@@ -0,0 +1,13 @@
+-- +goose Up
+-- +goose StatementBegin
+CREATE TABLE "user" (
+    id TEXT NOT NULL PRIMARY KEY,
+    nick TEXT NOT NULL,
+    permissions TEXT[] NOT NULL
+);
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+DROP TABLE "user";
+-- +goose StatementEnd
diff --git a/database/postgres/queries/keys.sql b/database/postgres/queries/keys.sql
new file mode 100644
index 0000000..32786bb
--- /dev/null
+++ b/database/postgres/queries/keys.sql
@@ -0,0 +1,15 @@
+-- name: SelectKey :one
+SELECT * FROM "key" WHERE id=$1 LIMIT 1;
+
+-- name: SelectKeys :many
+SELECT * FROM "key";
+
+-- name: SelectKeysByUser :many
+SELECT * FROM "key" WHERE "user" = $1;
+
+-- name: InsertKey :exec
+INSERT INTO key (id, name, "user", secret)
+VALUES (@id, @name, @user_id, @secret);
+
+-- name: DeleteKey :exec
+DELETE FROM "key" WHERE id = $1;
\ No newline at end of file
diff --git a/database/postgres/queries/user.sql b/database/postgres/queries/user.sql
new file mode 100644
index 0000000..2bc92a2
--- /dev/null
+++ b/database/postgres/queries/user.sql
@@ -0,0 +1,11 @@
+-- name: SelectUser :one
+SELECT * FROM "user" WHERE id=$1 LIMIT 1;
+
+-- name: SelectUsers :many
+SELECT * FROM "user";
+
+-- name: InsertUser :exec
+INSERT INTO "user" (id, nick, permissions)
+VALUES (
+    @id, @nick, @permissions
+);
diff --git a/database/postgres/user.go b/database/postgres/user.go
new file mode 100644
index 0000000..9e68350
--- /dev/null
+++ b/database/postgres/user.go
@@ -0,0 +1,56 @@
+package postgres
+
+import (
+	"context"
+	"database/sql"
+	"git.aiterp.net/rpdata/api/database/postgres/psqlcore"
+	"git.aiterp.net/rpdata/api/models"
+)
+
+type userRepository struct {
+	db *sql.DB
+}
+
+func (r *userRepository) Find(ctx context.Context, id string) (*models.User, error) {
+	user, err := psqlcore.New(r.db).SelectUser(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+
+	return &models.User{
+		ID:          user.ID,
+		Nick:        user.Nick,
+		Permissions: user.Permissions,
+	}, nil
+}
+
+func (r *userRepository) List(ctx context.Context) ([]*models.User, error) {
+	users, err := psqlcore.New(r.db).SelectUsers(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	results := make([]*models.User, 0, len(users))
+	for _, user := range users {
+		results = append(results, &models.User{
+			ID:          user.ID,
+			Nick:        user.Nick,
+			Permissions: user.Permissions,
+		})
+	}
+
+	return results, nil
+}
+
+func (r *userRepository) Insert(ctx context.Context, user models.User) (*models.User, error) {
+	err := psqlcore.New(r.db).InsertUser(ctx, psqlcore.InsertUserParams{
+		ID:          user.ID,
+		Nick:        user.Nick,
+		Permissions: user.Permissions,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &user, nil
+}