diff --git a/lib/Misc/ValueInfo.php b/lib/Misc/ValueInfo.php
index 040243d..c382836 100644
--- a/lib/Misc/ValueInfo.php
+++ b/lib/Misc/ValueInfo.php
@@ -89,4 +89,16 @@ class ValueInfo {
             return true;
         }
     }
+
+    public static function bool($value, bool $default = null) {
+        if (is_null($value) || ValueInfo::str($value) & ValueInfo::WHITE) {
+            return $default;
+        }
+        $out = filter_var($value, \FILTER_VALIDATE_BOOLEAN, \FILTER_NULL_ON_FAILURE);
+        if (is_null($out) && (ValueInfo::int($value) & ValueInfo::VALID)) {
+            $out = abs((int) filter_var($value, \FILTER_VALIDATE_FLOAT));
+            return ($out < 2) ? (bool) $out : $default;
+        }
+        return !is_null($out) ? $out : $default;
+    }
 }
diff --git a/lib/REST/AbstractHandler.php b/lib/REST/AbstractHandler.php
index 8c0988d..81c3a68 100644
--- a/lib/REST/AbstractHandler.php
+++ b/lib/REST/AbstractHandler.php
@@ -59,7 +59,7 @@ abstract class AbstractHandler implements Handler {
                     }
                     break;
                 case "bool":
-                    $test = filter_var($value, \FILTER_VALIDATE_BOOLEAN, \FILTER_NULL_ON_FAILURE);
+                    $test = ValueInfo::bool($value);
                     if (!is_null($test)) {
                         $out[$key] = $test;
                     }
diff --git a/tests/Misc/TestValueInfo.php b/tests/Misc/TestValueInfo.php
index 1a75099..1291b47 100644
--- a/tests/Misc/TestValueInfo.php
+++ b/tests/Misc/TestValueInfo.php
@@ -52,6 +52,12 @@ class TestValueInfo extends Test\AbstractTest {
             ["-000.000",    I::VALID | I::ZERO],
             [false,         0],
             [true,          0],
+            ["on",          0],
+            ["off",         0],
+            ["yes",         0],
+            ["no",          0],
+            ["true",        0],
+            ["false",       0],
             [INF,           0],
             [-INF,          0],
             [NAN,           0],
@@ -116,6 +122,12 @@ class TestValueInfo extends Test\AbstractTest {
             ["-000.000",    I::VALID],
             [false,         0],
             [true,          0],
+            ["on",          I::VALID],
+            ["off",         I::VALID],
+            ["yes",         I::VALID],
+            ["no",          I::VALID],
+            ["true",        I::VALID],
+            ["false",       I::VALID],
             [INF,           0],
             [-INF,          0],
             [NAN,           0],
@@ -181,6 +193,12 @@ class TestValueInfo extends Test\AbstractTest {
             ["-000.000",    false, true],
             [false,         false, false],
             [true,          false, false],
+            ["on",          false, false],
+            ["off",         false, false],
+            ["yes",         false, false],
+            ["no",          false, false],
+            ["true",        false, false],
+            ["false",       false, false],
             [INF,           false, false],
             [-INF,          false, false],
             [NAN,           false, false],
@@ -201,4 +219,79 @@ class TestValueInfo extends Test\AbstractTest {
             $this->assertSame($expNull, I::id($value, true), "Null test failed for value: ".var_export($value, true));
         }
     }
+
+    public function testValidateBoolean() {
+        $tests = [
+            [null,          null],
+            ["",            false],
+            [1,             true],
+            [PHP_INT_MAX,   null],
+            [1.0,           true],
+            ["1.0",         true],
+            ["001.0",       true],
+            ["1.0e2",       null],
+            ["1",           true],
+            ["001",         true],
+            ["1e2",         null],
+            ["+1.0",        true],
+            ["+001.0",      true],
+            ["+1.0e2",      null],
+            ["+1",          true],
+            ["+001",        true],
+            ["+1e2",        null],
+            [0,             false],
+            ["0",           false],
+            ["000",         false],
+            [0.0,           false],
+            ["0.0",         false],
+            ["000.000",     false],
+            ["+0",          false],
+            ["+000",        false],
+            ["+0.0",        false],
+            ["+000.000",    false],
+            [-1,            true],
+            [-1.0,          true],
+            ["-1.0",        true],
+            ["-001.0",      true],
+            ["-1.0e2",      null],
+            ["-1",          true],
+            ["-001",        true],
+            ["-1e2",        null],
+            [-0,            false],
+            ["-0",          false],
+            ["-000",        false],
+            [-0.0,          false],
+            ["-0.0",        false],
+            ["-000.000",    false],
+            [false,         false],
+            [true,          true],
+            ["on",          true],
+            ["off",         false],
+            ["yes",         true],
+            ["no",          false],
+            ["true",        true],
+            ["false",       false],
+            [INF,           null],
+            [-INF,          null],
+            [NAN,           null],
+            [[],            null],
+            ["some string", null],
+            ["           ", null],
+            [new \StdClass, null],
+            [new StrClass(""),    false],
+            [new StrClass("1"),   true],
+            [new StrClass("0"),   false],
+            [new StrClass("-1"),  true],
+            [new StrClass("Msg"), null],
+            [new StrClass("   "), null],
+        ];
+        foreach ($tests as $test) {
+            list($value, $exp) = $test;
+            $this->assertSame($exp, I::bool($value), "Null Test failed for value: ".var_export($value, true));
+            if (is_null($exp)) {
+                $this->assertTrue(I::bool($value, true), "True Test failed for value: ".var_export($value, true));
+                $this->assertFalse(I::bool($value, false), "False Test failed for value: ".var_export($value, true));
+            }
+        }
+    }
 }