diff --git a/types/imperium/imperium-tests.ts b/types/imperium/imperium-tests.ts
new file mode 100644
index 0000000000..f7380c25cc
--- /dev/null
+++ b/types/imperium/imperium-tests.ts
@@ -0,0 +1,19 @@
+import imperium from 'imperium';
+
+imperium.role('admin', async (req) => {
+    return true;
+});
+
+imperium.role('user')
+    .can('seeUser', { user: '@' })
+    .can('manageUser', { user: '@' });
+
+imperium.role('admin')
+    .is('user', { user: '*' });
+
+imperium.can('seeUser');
+imperium.can(['seeUser', 'manageUser']);
+imperium.can({ action: 'seeUser', user: ':userId' });
+imperium.can([{ action: 'manageUser', user: ':userId' }]);
+imperium.is('admin');
+imperium.is(['admin', 'user']);
diff --git a/types/imperium/index.d.ts b/types/imperium/index.d.ts
new file mode 100644
index 0000000000..67eace244e
--- /dev/null
+++ b/types/imperium/index.d.ts
@@ -0,0 +1,98 @@
+// Type definitions for imperium 2.0
+// Project: https://www.npmjs.org/package/imperium
+// Definitions by: Gaetan SENN <https://github.com/gaetansenn>
+// Definitions: https://github.com/psnider/DefinitelyTyped/imperium
+// TypeScript Version: 2.7
+
+/// <reference types="node" />
+
+import express = require('express');
+
+export type GetAcl = (req: express.Request) => Promise<boolean> | Promise<object>;
+export type Actions = string[] | string;
+export type Context = Array<'params' | 'query' | 'headers' | 'body'>;
+// Can contain when key that is evaluated during route action
+export interface RoleParams {
+    [key: string]: string;
+}
+
+export const context: string[];
+export const roles: Roles;
+
+// Add new role with specific ImperiumGetAcl
+export function role(roleName: string, getAcl?: GetAcl): Role;
+
+// Check if user has role(s) act like as an OR
+export function is(roleNames: string | string[]): Promise<express.RequestHandler>;
+
+// Check if current user can do action(s)
+export function can(actionS: string | string[] | Action | Action[]): Promise<express.RequestHandler>;
+
+export function evaluateRouteActions(req: express.Request, action: Action[], context: Context): Actions;
+
+export function evaluateRouteAction(req: express.Request, expr: string, key: string, context: Context): string;
+
+export function evaluateUserActions(req: express.Request, roles: Role[]): Promise<Action[]>;
+
+export function evaluateUserAction(action: RoleParams, context: { [key: string]: string[] }): { [key: string]: string[] };
+
+export class Imperium {
+    constructor()
+
+    context: string[];
+    roles: Roles;
+
+    // Add new role with specific ImperiumGetAcl
+    role(roleName: string, getAcl?: GetAcl): Role;
+
+    // Check if user has role(s) act like as an OR
+    is(roleNames: string | string[]): Promise<express.RequestHandler>;
+
+    // Check if current user can do action(s)
+    can(actionS: string | string[] | Action | Action[]): Promise<express.RequestHandler>;
+
+    private addRole(roleName: string, getAcl: GetAcl): void;
+
+    evaluateRouteActions(req: express.Request, action: Action[], context: Context): Actions;
+
+    evaluateRouteAction(req: express.Request, expr: string, key: string, context: Context): string;
+
+    evaluateUserActions(req: express.Request, roles: Role[]): Promise<Action[]>;
+
+    evaluateUserAction(action: RoleParams, context: { [key: string]: string[] }): { [key: string]: string[] };
+}
+
+export interface Roles {
+    [key: string]: RoleActions;
+}
+
+export interface RoleActions {
+    actions: Action[];
+    getAcl?: GetAcl;
+}
+
+export interface Action {
+    action: string;
+    [key: string]: string;
+}
+
+export class Role {
+    constructor(imperium: Imperium, roleName: string)
+
+    // Imperium instance to retreive child role
+    imperium: Imperium;
+    // Role name
+    roleName: string;
+    // Contain all the actions for this specific role
+    role: RoleActions;
+
+    /* Add action with specific params */
+    can(action: string, params: RoleParams): Role;
+
+    /* Get actions of childRoleName and replace params */
+    is(childRoleName: string, params: RoleParams): Role;
+}
+
+export class UnauthorizedError extends Error {
+    constructor(message: string, status: number, context: any)
+}
diff --git a/types/imperium/tsconfig.json b/types/imperium/tsconfig.json
new file mode 100644
index 0000000000..caaa7b74ce
--- /dev/null
+++ b/types/imperium/tsconfig.json
@@ -0,0 +1,25 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6",
+            "dom"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "esModuleInterop": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "imperium-tests.ts"
+    ]
+}
diff --git a/types/imperium/tslint.json b/types/imperium/tslint.json
new file mode 100644
index 0000000000..f93cf8562a
--- /dev/null
+++ b/types/imperium/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": "dtslint/dt.json"
+}