diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..cdc2ca3
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,135 @@
+
+declare module 'react-native-circular-progress' {
+  import React from 'react';
+  import { Animated, Easing } from 'react-native';
+
+  export interface AnimatedCircularProgressProps {
+    /**
+     * Width and height of circle
+     * 
+     * @type {number | Animated.Value}
+     */
+    size: number | Animated.Value;
+
+    /**
+     * Thickness of the progress line
+     * 
+     * @type {number}
+     */
+    width: number;
+
+    /**
+     * Thickness of background circle
+     * 
+     * @type {number}
+     * @default width
+     */
+    backgroundWidth?: number;
+
+    /**
+     * Current progress / fill
+     * 
+     * @type {number}
+     * @default 0
+     */
+    fill?: number;
+
+    /**
+     * Color of the progress line
+     * 
+     * @type {string}
+     * @default 'black'
+     */
+    tintColor?: string;
+
+    /**
+     * If unspecified, no background line will be rendered
+     * 
+     * @type {string}
+     */
+    backgroundColor?: string;
+
+    /**
+     * Angle from which the progress starts from
+     * 
+     * @type {number}
+     * @default 90
+     */
+    rotation?: number;
+
+    /**
+     * Shape used at ends of progress line.
+     * 
+     * @type {('butt' | 'round' | 'square')}
+     * @default 'butt'
+     */
+    lineCap?: 'butt' | 'round' | 'square';
+
+    /**
+     * If you don't want a full circle, specify the arc angle
+     * 
+     * @type {number}
+     * @default 360
+     */
+    arcSweepAngle?: number;
+
+    /**
+     * Pass a function as a child. It receiveds the current fill-value as an argument
+     * 
+     * @type {Function}
+     * @param {number} fill current fill-value
+     * @return {JSX.Element} the element inside the circle
+     */
+    children?: (fill: number) => JSX.Element;
+
+    /**
+     * Initial fill-value before animation starts
+     * 
+     * @type {number}
+     * @default 0
+     */
+    prefill?: number;
+
+    /**
+     * Duration of animation in ms
+     * 
+     * @type {number}
+     * @default 500
+     */
+    duration?: number;
+
+    /**
+     * 
+     * @type {(param: any) => any}
+     * @default Easing.out(Easing.ease)
+     */
+    easing?: (param: any) => any;
+
+    /**
+     * Function that's invoked when the animation completes (both on mount and if called with .animate())
+     * 
+     */
+    onAnimationComplete?: () => void
+  }
+
+  export class AnimatedCircularProgress extends React.Component<AnimatedCircularProgressProps> {
+    /**
+     * Animate the progress bar to a specific value
+     * 
+     * @param {number} toVal 
+     * @param {number} duration
+     * @param {Function} ease
+     */
+    animate: (toVal: number, duration: number, ease: Function) => void
+
+    /**
+     * Re-run animation with a specified prefill-value
+     * 
+     * @param {number} prefill
+     * @param {number} toVal
+     * @param {number} duration
+     * @param {Function} ease
+     */
+    reAnimate: (prefill: number, toVal: number, duration: number, ease: Function) => void
+  }
+}
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