MailCode Developer Guide
MailCode Checker Platform Documentation
Version 2.4 • Official Architecture & Usage Guide
1. Mail OTP Checker Overview
MailCode Checker provides two primary workflows for obtaining one-time security codes:
- Paste Raw Email: The fastest way to extract OTPs. Paste confirmation email text directly into the multiline input and press Extract OTP Code. The regex parser automatically detects codes (4 to 8 digits, alphanumeric tokens) and recognizes platforms like Google, Microsoft, Steam, GitHub, Discord, and Quora.
- Search Inboxes: Connect an authorized Google Gmail or Microsoft Outlook mailbox via OAuth 2.0. MailCode fetches incoming verification emails live, displaying real sender addresses, timestamps, and extracted codes with click-to-copy convenience.
2. Security & OAuth Architecture
Security is foundational to MailCode. We strictly adhere to zero-credential persistence:
Microsoft Graph & OutlookMinimal delegated scopes (
Mail.Read, offline_access). Follows official @odata.nextLink pagination.Google Gmail APIMinimal read-only scope (
gmail.readonly). Follows supported nextPageToken pagination.3. Productivity & Developer Tools
In addition to mailbox checking, MailCode provides client-side generators:
- Name Generator: Region-specific name generation for international test cases.
- Password Generator: High-entropy cryptographic password generator powered by
window.crypto. - 2FA Generator: Standard RFC 6238 TOTP engine for calculating 30-second rotating security codes locally.