diff --git a/src/FreeDSx/Sasl/Sasl.php b/src/FreeDSx/Sasl/Sasl.php
index 167f7cd..bbf07ae 100644
--- a/src/FreeDSx/Sasl/Sasl.php
+++ b/src/FreeDSx/Sasl/Sasl.php
@@ -29,7 +29,7 @@
  *
  * @author Chad Sikorra <Chad.Sikorra@gmail.com>
  */
-final class Sasl
+final class Sasl implements SaslInterface
 {
     /**
      * @var array<string, MechanismInterface> keyed by MechanismName->value
@@ -41,11 +41,6 @@ public function __construct(private readonly SaslOptions $options = new SaslOpti
         $this->initMechs();
     }
 
-    /**
-     * Get a mechanism object by its name.
-     *
-     * @throws SaslException
-     */
     public function get(MechanismName $mechanism): MechanismInterface
     {
         $mech = $this->mechanisms[$mechanism->value] ?? null;
@@ -59,41 +54,25 @@ public function get(MechanismName $mechanism): MechanismInterface
         return $mech;
     }
 
-    /**
-     * Whether or not the mechanism is supported.
-     */
     public function supports(MechanismName $mechanism): bool
     {
         return isset($this->mechanisms[$mechanism->value]);
     }
 
-    /**
-     * Add a mechanism object.
-     */
-    public function add(MechanismInterface $mechanism): self
+    public function add(MechanismInterface $mechanism): static
     {
         $this->mechanisms[$mechanism->getName()->value] = $mechanism;
 
         return $this;
     }
 
-    /**
-     * Remove a mechanism by its name.
-     */
-    public function remove(MechanismName $mechanism): self
+    public function remove(MechanismName $mechanism): static
     {
         unset($this->mechanisms[$mechanism->value]);
 
         return $this;
     }
 
-    /**
-     * Given an array of mechanism names, and optional selection options, select the best supported mechanism available.
-     *
-     * @param MechanismName[] $choices array of mechanisms by their name
-     *
-     * @throws SaslException
-     */
     public function select(
         array $choices = [],
         ?SelectOptions $options = null,
@@ -102,9 +81,6 @@ public function select(
             ->select($choices, $options);
     }
 
-    /**
-     * @return array<string, MechanismInterface>
-     */
     public function mechanisms(): array
     {
         return $this->mechanisms;
diff --git a/src/FreeDSx/Sasl/SaslInterface.php b/src/FreeDSx/Sasl/SaslInterface.php
new file mode 100644
index 0000000..ca58571
--- /dev/null
+++ b/src/FreeDSx/Sasl/SaslInterface.php
@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of the FreeDSx SASL package.
+ *
+ * (c) Chad Sikorra <Chad.Sikorra@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FreeDSx\Sasl;
+
+use FreeDSx\Sasl\Exception\SaslException;
+use FreeDSx\Sasl\Mechanism\MechanismInterface;
+use FreeDSx\Sasl\Mechanism\MechanismName;
+use FreeDSx\Sasl\Options\SelectOptions;
+
+/**
+ * The SASL interface.
+ *
+ * @author Chad Sikorra <Chad.Sikorra@gmail.com>
+ */
+interface SaslInterface
+{
+    /**
+     * Get a mechanism by its name.
+     *
+     * @throws SaslException
+     */
+    public function get(MechanismName $mechanism): MechanismInterface;
+
+    /**
+     * Whether the mechanism is supported.
+     */
+    public function supports(MechanismName $mechanism): bool;
+
+    /**
+     * Add a mechanism.
+     */
+    public function add(MechanismInterface $mechanism): static;
+
+    /**
+     * Remove a mechanism by name.
+     */
+    public function remove(MechanismName $mechanism): static;
+
+    /**
+     * Select the best available mechanism from the given choices.
+     *
+     * @param MechanismName[] $choices
+     * @throws SaslException
+     */
+    public function select(
+        array $choices = [],
+        ?SelectOptions $options = null,
+    ): MechanismInterface;
+
+    /**
+     * All registered mechanisms, keyed by MechanismName value.
+     *
+     * @return array<string, MechanismInterface>
+     */
+    public function mechanisms(): array;
+}