diff --git a/src/emails/interfaces/create-email-options.interface.ts b/src/emails/interfaces/create-email-options.interface.ts
index e02f9f6e..81056b0d 100644
--- a/src/emails/interfaces/create-email-options.interface.ts
+++ b/src/emails/interfaces/create-email-options.interface.ts
@@ -3,17 +3,77 @@ import { PostOptions } from '../../common/interfaces';
 import { RequireAtLeastOne } from 'type-fest';
 
 interface CreateEmailBaseOptions {
+  /**
+   * Filename and content of attachments (max 40mb per email)
+   *
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   attachments?: Attachment[];
+  /**
+   * Blind carbon copy recipient email address. For multiple addresses, send as an array of strings.
+   *
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   bcc?: string | string[];
+  /**
+   * Carbon copy recipient email address. For multiple addresses, send as an array of strings.
+   *
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   cc?: string | string[];
+  /**
+   * Sender email address. To include a friendly name, use the format `"Your Name <sender@domain.com>"`
+   *
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   from: string;
+  /**
+   * Custom headers to add to the email.
+   *
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   headers?: Record<string, string>;
+  /**
+   * The React component used to write the message.
+   *
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   react?: React.ReactElement | React.ReactNode | null;
+  /**
+   * The HTML version of the message.
+   * 
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   html?: string;
+  /**
+   * The plain text version of the message.
+   * 
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   text?: string;
+  /**
+   * Reply-to email address. For multiple addresses, send as an array of strings.
+   *
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   reply_to?: string | string[];
+  /**
+   * Email subject.
+   *
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   subject: string;
+  /**
+   * Email tags
+   *
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   tags?: Tag[];
+  /**
+   * Recipient email address. For multiple addresses, send as an array of strings. Max 50.
+   * 
+   * @link https://resend.com/api-reference/emails/send-email#body-parameters
+   */
   to: string | string[];
 }
 
@@ -25,13 +85,26 @@ export type CreateEmailOptions = RequireAtLeastOne<
 export interface CreateEmailRequestOptions extends PostOptions {}
 
 export interface CreateEmailResponse {
+  /** The ID of the newly created email. */
   id: string;
 }
 
 interface Attachment {
+  /** Content of an attached file. */
   content?: string | Buffer;
+  /** Name of attached file. */
   filename?: string | false | undefined;
+  /** Path where the attachment file is hosted */
   path?: string;
 }
 
-export type Tag = { name: string; value: string };
+export type Tag = {
+  /**
+   * The name of the email tag. It can only contain ASCII letters (a–z, A–Z), numbers (0–9), underscores (_), or dashes (-). It can contain no more than 256 characters.
+   */
+  name: string;
+  /**
+   * The value of the email tag. It can only contain ASCII letters (a–z, A–Z), numbers (0–9), underscores (_), or dashes (-). It can contain no more than 256 characters.
+   */
+  value: string;
+};