diff --git a/jasmine-matchers.d.ts b/jasmine-matchers.d.ts
new file mode 100644
index 0000000..5e73553
--- /dev/null
+++ b/jasmine-matchers.d.ts
@@ -0,0 +1,83 @@
+declare namespace jasmine {
+  interface Matchers {
+    toBeAfter(otherDate: Date, expectationFailOutput?: any): boolean;
+    toBeArray(expectationFailOutput?: any): boolean;
+    toBeArrayOfBooleans(expectationFailOutput?: any): boolean;
+    toBeArrayOfNumbers(expectationFailOutput?: any): boolean;
+    toBeArrayOfObjects(expectationFailOutput?: any): boolean;
+    toBeArrayOfSize(size: number, expectationFailOutput?: any): boolean;
+    toBeArrayOfStrings(expectationFailOutput?: any): boolean;
+    toBeBefore(otherDate: Date, expectationFailOutput?: any): boolean;
+    toBeBoolean(expectationFailOutput?: any): boolean;
+    toBeCalculable(expectationFailOutput?: any): boolean;
+    toBeDate(expectationFailOutput?: any): boolean;
+    toBeEmptyArray(expectationFailOutput?: any): boolean;
+    toBeEmptyObject(expectationFailOutput?: any): boolean;
+    toBeEmptyString(expectationFailOutput?: any): boolean;
+    toBeEvenNumber(expectationFailOutput?: any): boolean;
+    toBeFalse(expectationFailOutput?: any): boolean;
+    toBeFunction(expectationFailOutput?: any): boolean;
+    toBeHtmlString(expectationFailOutput?: any): boolean;
+    toBeIso8601(expectationFailOutput?: any): boolean;
+    toBeJsonString(expectationFailOutput?: any): boolean;
+    toBeLongerThan(other: string, expectationFailOutput?: any): boolean;
+    toBeNonEmptyArray(expectationFailOutput?: any): boolean;
+    toBeNonEmptyObject(expectationFailOutput?: any): boolean;
+    toBeNonEmptyString(expectationFailOutput?: any): boolean;
+    toBeNumber(expectationFailOutput?: any): boolean;
+    toBeObject(expectationFailOutput?: any): boolean;
+    toBeOddNumber(expectationFailOutput?: any): boolean;
+    toBeSameLengthAs(other: string, expectationFailOutput?: any): boolean;
+    toBeShorterThan(other: string, expectationFailOutput?: any): boolean;
+    toBeString(expectationFailOutput?: any): boolean;
+    toBeTrue(expectationFailOutput?: any): boolean;
+    toBeWhitespace(expectationFailOutput?: any): boolean;
+    toBeWholeNumber(expectationFailOutput?: any): boolean;
+    toBeWithinRange(floor: number, ceiling: number, expectationFailOutput?: any): boolean;
+
+    toEndWith(subString: string, expectationFailOutput?: any): boolean;
+
+    toHaveArray(key: string, expectationFailOutput?: any): boolean;
+    toHaveArrayOfBooleans(key: string, expectationFailOutput?: any): boolean;
+    toHaveArrayOfNumbers(key: string, expectationFailOutput?: any): boolean;
+    toHaveArrayOfObjects(key: string, expectationFailOutput?: any): boolean;
+    toHaveArrayOfSize(key: string, size?: number, expectationFailOutput?: any): boolean;
+    toHaveArrayOfStrings(key: string, expectationFailOutput?: any): boolean;
+    toHaveBoolean(key: string, expectationFailOutput?: any): boolean;
+    toHaveCalculable(key: string, expectationFailOutput?: any): boolean;
+    toHaveDate(key: string, expectationFailOutput?: any): boolean;
+    toHaveDateAfter(key: string, otherDate: Date, expectationFailOutput?: any): boolean;
+    toHaveDateBefore(key: string, otherDate: Date, expectationFailOutput?: any): boolean;
+    toHaveEmptyArray(key: string, expectationFailOutput?: any): boolean;
+    toHaveEmptyObject(key: string, expectationFailOutput?: any): boolean;
+    toHaveEmptyString(key: string, expectationFailOutput?: any): boolean;
+    toHaveEvenNumber(key: string, expectationFailOutput?: any): boolean;
+    toHaveFalse(key: string, expectationFailOutput?: any): boolean;
+    toHaveHtmlString(key: string, expectationFailOutput?: any): boolean;
+    toHaveIso8601(key: string, expectationFailOutput?: any): boolean;
+    toHaveJsonString(key: string, expectationFailOutput?: any): boolean;
+    toHaveMember(key: string, expectationFailOutput?: any): boolean;
+    toHaveMethod(key: string, expectationFailOutput?: any): boolean;
+    toHaveNonEmptyArray(key: string, expectationFailOutput?: any): boolean;
+    toHaveNonEmptyObject(key: string, expectationFailOutput?: any): boolean;
+    toHaveNonEmptyString(key: string, expectationFailOutput?: any): boolean;
+    toHaveNumber(key: string, expectationFailOutput?: any): boolean;
+    toHaveNumberWithinRange(key: string, floor: number, ceiling: number, expectationFailOutput?: any): boolean;
+    toHaveObject(key: string, expectationFailOutput?: any): boolean;
+    toHaveOddNumber(key: string, expectationFailOutput?: any): boolean;
+    toHaveString(key: string, expectationFailOutput?: any): boolean;
+    toHaveStringLongerThan(key: string, other: string, expectationFailOutput?: any): boolean;
+    toHaveStringSameLengthAs(key: string, other: string, expectationFailOutput?: any): boolean;
+    toHaveStringShorterThan(key: string, other: string, expectationFailOutput?: any): boolean;
+    toHaveTrue(key: string, expectationFailOutput?: any): boolean;
+    toHaveWhitespaceString(key: string, expectationFailOutput?: any): boolean;
+    toHaveWholeNumber(key: string, expectationFailOutput?: any): boolean;
+
+    toImplement(api: {}, expectationFailOutput?: any): boolean;
+
+    toStartWith(subString: string, expectationFailOutput?: any): boolean;
+
+    toThrowAnyError(expectationFailOutput?: any): boolean;
+    toThrowErrorOfType(type: string, expectationFailOutput?: any): boolean;
+  }
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 7e7b385..0f226d3 100644
--- a/package.json
+++ b/package.json
@@ -92,6 +92,7 @@
     "test:local": "karma start karma/base.conf.js --browsers Chrome",
     "watch": "gulp watch"
   },
+  "types": "./jasmine-matchers.d.ts",
   "xo": {
     "envs": [
       "jasmine",