diff --git a/easy-rules-core/src/main/java/org/jeasy/rules/api/RulesEngine.java b/easy-rules-core/src/main/java/org/jeasy/rules/api/RulesEngine.java
index d22c158..6ca9fc3 100644
--- a/easy-rules-core/src/main/java/org/jeasy/rules/api/RulesEngine.java
+++ b/easy-rules-core/src/main/java/org/jeasy/rules/api/RulesEngine.java
@@ -27,8 +27,6 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
-import org.jeasy.rules.core.RulesEngineParameters;
-
 /**
  * Rules engine interface.
  *
diff --git a/easy-rules-core/src/main/java/org/jeasy/rules/core/RulesEngineParameters.java b/easy-rules-core/src/main/java/org/jeasy/rules/api/RulesEngineParameters.java
similarity index 97%
rename from easy-rules-core/src/main/java/org/jeasy/rules/core/RulesEngineParameters.java
rename to easy-rules-core/src/main/java/org/jeasy/rules/api/RulesEngineParameters.java
index a124865..3724c9b 100644
--- a/easy-rules-core/src/main/java/org/jeasy/rules/core/RulesEngineParameters.java
+++ b/easy-rules-core/src/main/java/org/jeasy/rules/api/RulesEngineParameters.java
@@ -21,7 +21,10 @@
  *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  *  THE SOFTWARE.
  */
-package org.jeasy.rules.core;
+package org.jeasy.rules.api;
+
+import org.jeasy.rules.core.DefaultRulesEngine;
+import org.jeasy.rules.core.InferenceRulesEngine;
 
 /**
  * Parameters of a rules engine.
diff --git a/easy-rules-core/src/main/java/org/jeasy/rules/core/AbstractRulesEngine.java b/easy-rules-core/src/main/java/org/jeasy/rules/core/AbstractRulesEngine.java
index 435b1de..a6f48da 100644
--- a/easy-rules-core/src/main/java/org/jeasy/rules/core/AbstractRulesEngine.java
+++ b/easy-rules-core/src/main/java/org/jeasy/rules/core/AbstractRulesEngine.java
@@ -26,6 +26,7 @@ package org.jeasy.rules.core;
 import org.jeasy.rules.api.RuleListener;
 import org.jeasy.rules.api.RulesEngine;
 import org.jeasy.rules.api.RulesEngineListener;
+import org.jeasy.rules.api.RulesEngineParameters;
 
 import java.util.ArrayList;
 import java.util.Collections;
diff --git a/easy-rules-core/src/test/java/org/jeasy/rules/core/DefaultRulesEngineTest.java b/easy-rules-core/src/test/java/org/jeasy/rules/core/DefaultRulesEngineTest.java
index ec5151f..a4f7b92 100644
--- a/easy-rules-core/src/test/java/org/jeasy/rules/core/DefaultRulesEngineTest.java
+++ b/easy-rules-core/src/test/java/org/jeasy/rules/core/DefaultRulesEngineTest.java
@@ -39,6 +39,7 @@ import org.jeasy.rules.annotation.Condition;
 import org.jeasy.rules.annotation.Priority;
 import org.jeasy.rules.api.RuleListener;
 import org.jeasy.rules.api.RulesEngineListener;
+import org.jeasy.rules.api.RulesEngineParameters;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
diff --git a/easy-rules-core/src/test/java/org/jeasy/rules/core/RulePriorityThresholdTest.java b/easy-rules-core/src/test/java/org/jeasy/rules/core/RulePriorityThresholdTest.java
index adcc0be..3745551 100644
--- a/easy-rules-core/src/test/java/org/jeasy/rules/core/RulePriorityThresholdTest.java
+++ b/easy-rules-core/src/test/java/org/jeasy/rules/core/RulePriorityThresholdTest.java
@@ -23,6 +23,7 @@
  */
 package org.jeasy.rules.core;
 
+import org.jeasy.rules.api.RulesEngineParameters;
 import org.junit.Before;
 import org.junit.Test;
 
diff --git a/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstAppliedRuleTest.java b/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstAppliedRuleTest.java
index 9c148c7..400e959 100644
--- a/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstAppliedRuleTest.java
+++ b/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstAppliedRuleTest.java
@@ -23,6 +23,7 @@
  */
 package org.jeasy.rules.core;
 
+import org.jeasy.rules.api.RulesEngineParameters;
 import org.junit.Before;
 import org.junit.Test;
 
diff --git a/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstFailedRuleTest.java b/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstFailedRuleTest.java
index a6a401b..5640496 100644
--- a/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstFailedRuleTest.java
+++ b/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstFailedRuleTest.java
@@ -23,6 +23,7 @@
  */
 package org.jeasy.rules.core;
 
+import org.jeasy.rules.api.RulesEngineParameters;
 import org.junit.Before;
 import org.junit.Test;
 
diff --git a/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstNonTriggeredRuleTest.java b/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstNonTriggeredRuleTest.java
index 6cfd680..d7a37dc 100644
--- a/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstNonTriggeredRuleTest.java
+++ b/easy-rules-core/src/test/java/org/jeasy/rules/core/SkipOnFirstNonTriggeredRuleTest.java
@@ -23,6 +23,7 @@
  */
 package org.jeasy.rules.core;
 
+import org.jeasy.rules.api.RulesEngineParameters;
 import org.junit.Before;
 import org.junit.Test;
 
diff --git a/easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/fizzbuzz/FizzBuzzWithEasyRules.java b/easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/fizzbuzz/FizzBuzzWithEasyRules.java
index ba1a96a..eb9f758 100644
--- a/easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/fizzbuzz/FizzBuzzWithEasyRules.java
+++ b/easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/fizzbuzz/FizzBuzzWithEasyRules.java
@@ -27,7 +27,7 @@ import org.jeasy.rules.api.Facts;
 import org.jeasy.rules.api.Rules;
 import org.jeasy.rules.api.RulesEngine;
 import org.jeasy.rules.core.DefaultRulesEngine;
-import org.jeasy.rules.core.RulesEngineParameters;
+import org.jeasy.rules.api.RulesEngineParameters;
 
 public class FizzBuzzWithEasyRules {
     public static void main(String[] args) {