diff --git a/package.json b/package.json
index ebea7e8..8fdc51d 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     },
     "license": "MIT",
     "main": "signaturit.js",
+    "types": "signaturit.d.ts",
     "scripts": {
         "test": "jest",
         "test:coverage": "jest --coverage"
diff --git a/signaturit.d.ts b/signaturit.d.ts
new file mode 100644
index 0000000..b8a9404
--- /dev/null
+++ b/signaturit.d.ts
@@ -0,0 +1,227 @@
+
+  import { PathLike } from "fs";
+  export class SignaturitClient {
+    constructor(accessToken: string, production: boolean);
+    /** Create a new signature request. */
+    createSignature: (
+      filesPath: PathLike | PathLike[],
+      recipients: Recipient | Recipient[],
+      params: SignatureParams
+    ) => Promise<SignatureResponse>;
+    /** Cancel a signature request. The signer will not be able to sign the document. */
+    cancelSignature: (signatureId: string) => Promise<SignatureResponse>;
+    /** Download the signed PDF file. */
+    downloadSignedDocument: (
+      signatureId: string,
+      documentId: string
+    ) => Promise<string>;
+    /** Download the binary content of the audit trail PDF. */
+    downloadAuditTrail: (
+      signatureId: string,
+      documentId: string
+    ) => Promise<string>;
+
+    /** Get all brandings from your account. */
+    getBrandings: () => Promise<BrandingResponse[]>;
+    /** Get a branding. */
+    getBranding: (brandingId: string) => Promise<BrandingResponse>;
+    /** Create a single branding. */
+    createBranding: (params: BrandingParams) => Promise<BrandingResponse>;
+    /** Update a single branding. */
+    updateBranding: (
+      brandingId: string,
+      params: BrandingParams
+    ) => Promise<BrandingResponse>;
+    /** Get a subscription. */
+    getSubscription: (subscriptionId: string) => Promise<SubscriptionResponse>;
+    /** Get all subscriptions. */
+    getSubscriptions: (
+      limit: number,
+      offset: number,
+      conditions: any
+    ) => Promise<SubscriptionResponse>;
+    /** Create a new subscription. */
+    createSubscription: (
+      url: string,
+      events: AnyEvent[]
+    ) => Promise<SubscriptionResponse>;
+    /** Updates a subscription. */
+    updateSubscription: (
+      subscriptionId: string,
+      url: string,
+      events: AnyEvent[]
+    ) => Promise<SubscriptionResponse>;
+    /** Deletes a subscription. */
+    deleteSubscription: (subscriptionId: string) => Promise<any[]>;
+  }
+
+  type BrandingParams = {
+    /** List with all the customizable texts for application widgets. */
+    application_texts?: {
+      /** Send button text. */
+      send_button?: string;
+      /** Customizable text for Signature e-mail sign button. */
+      open_sign_button?: string;
+      /** Customizable text for Certified e-mail sign button. */
+      open_email_button?: string;
+      /** Text that follow our terms text (html code is allowed). */
+      terms_and_conditions?: string;
+    };
+    /** Primary element color. */
+    layout_color?: string;
+    /** The logo sent in emails (base64 encoded). */
+    logo?: string;
+    /** The color that will be used in the signature draw */
+    signature_color?: "black" | "blue";
+    /** Primary text color. ex: #FAAC58 */
+    text_color: string;
+    /** Hide or show the CSV image and text that is stamped in the signed file. */
+    show_csv?: boolean;
+    /** Hide or show the Biometric Hash in the signed document and audit trail. */
+    show_biometric_hash?: boolean;
+    /** Hide or show the welcome page that appears before showing the document. */
+    show_welcome_page?: boolean;
+  };
+
+  type BrandingResponse = { id: string; created_at: Date } & BrandingParams;
+
+  type PageCoordinates = {
+    top: string | number;
+    left: string | number;
+    height: string | number;
+    width: string | number;
+  };
+  type Recipient = {
+    email: string;
+    name: string;
+  };
+
+  type SignatureParams = {
+    /** Use a custom branding for the signature request */
+    branding_id?: string;
+    /** Url to redirect the user when finish the signature process. */
+    callback_url?: string;
+    /** Custom information in a key: value format that you can include in the signature request */
+    data?: { [key: string]: string };
+    /** The signature request delivery type. */
+    delivery_type: "url" | "email" | "sms";
+    /** URL that receive realtime information about this signature process.  */
+    events_url?: string;
+    /** Expiration time of the document (in days). You can set it 0 to disable reminders (not recommended). */
+    expire_time?: number;
+    /** A single value or an array with time values in days to wait until sending and automatic reminder. You can set it 0 to disable reminders. */
+    reminders?: number | number[];
+    /** List with pdf / doc files. */
+    files?: PathLike[];
+    /** List with signature recipients containing name, email and extra requirements for the signature process if needed. */
+    recipients?: Array<
+      Recipient & {
+        require_signature_in_coordinates?: Array<PageCoordinates | number | {}>;
+        widgets?: SignaturItWidget[];
+      }
+    >;
+    /** List with email recipients containing name and email for people that will receive a copy of the signed document when the process is completed. */
+    cc?: Recipient[];
+    /** The signing mode lets you control the order in which your recipients receive and sign your documents. the default value is sequential. */
+    signing_mode?: "sequential" | "parallel";
+    /** The type of the signature. Note: the default value is the advanced signature request. */
+    type?: "simple" | "advanced" | "smart";
+  };
+
+  type SignaturItWidget = {
+    page?: number; // range 1...N
+    editable?: number; // 0 or 1
+    required?: number; // 0 or 1
+    height?: number;
+    width?: number;
+    top?: number;
+    left?: number;
+    type:
+      | "date"
+      | "image"
+      | "check"
+      | "radio"
+      | "select"
+      | "text"
+      | "signature";
+    default?: any;
+    word_anchor?: string;
+    options?: any;
+  };
+
+  type Document = {
+    id: string;
+    created_at: Date;
+    file: {
+      name: string;
+      pages?: number;
+      size: number;
+    };
+    events: {
+      created_at: Date;
+      type: SignatureEvents | EmailEvents | SMSEvents;
+    }[];
+    email: string;
+    name: string;
+    status: string;
+  };
+
+  type SignatureResponse = {
+    id: string;
+    created_at: Date;
+    data: any[];
+    documents: Document[];
+    url?: string;
+  };
+
+  type SubscriptionResponse = {
+    id: string;
+    url: string;
+    created_at: Date;
+    events: AnyEvent[];
+  };
+
+  type SignatureEvents =
+    | "email_processed"
+    | "email_delivered"
+    | "email_opened"
+    | "email_bounced"
+    | "email_deferred"
+    | "reminder_email_processed"
+    | "reminder_email_delivered"
+    | "reminder_email_opened"
+    | "sms_processed"
+    | "sms_delivered"
+    | "password_sms_processed"
+    | "password_sms_delivered"
+    | "document_opened"
+    | "document_signed"
+    | "document_completed"
+    | "audit_trail_completed"
+    | "document_declined"
+    | "document_expired"
+    | "document_canceled"
+    | "photo_added"
+    | "voice_added"
+    | "file_added"
+    | "photo_id_added"
+    | "terms_and_conditions_accepted";
+
+  type EmailEvents =
+    | "email_processed"
+    | "email_delivered"
+    | "email_opened"
+    | "documents_opened"
+    | "document_opened"
+    | "document_downloaded"
+    | "certification_completed";
+
+  type SMSEvents =
+    | "sms_processed"
+    | "sms_delivered"
+    | "documents_opened"
+    | "document_opened"
+    | "document_downloaded"
+    | "certification_completed";
+
+  type AnyEvent = SignatureEvents | EmailEvents | SMSEvents | "*";