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Fast2SMS – OTP Login & SMS Notifications
Fast2SMS – OTP Login & SMS Notifications
Free OTP login, WhatsApp & SMS order notifications, bulk campaigns, COD verification and abandoned cart recovery for WordPress & WooCommerce.
Will this break my store?
What the WordPress.org registry says about keeping Fast2SMS – OTP Login & SMS Notifications running.
Tested to 7.0.4 — 1 branch behind 7.1
Tested against the WordPress branch in use today.25 days ago
7.4
Your host must be running at least this version.5.8
2
Maintenance & trust
Scored on how Fast2SMS – OTP Login & SMS Notifications is looked after — not on how many stores run it.
Maintenance
35 / 35WordPress compatibility
20 / 20Support responsiveness
Not enough dataMerchant satisfaction
Not enough dataListing transparency
10 / 10Ratings
No one has rated this plugin on WordPress.org yet. That is a statement about the ratings page, not about the plugin — plenty of well-kept plugins never collect them.
Add OTP login, WhatsApp and SMS order notifications, abandoned cart recovery, COD verification and bulk campaigns to WordPress and WooCommerce with the official Fast2SMS plugin.
The plugin is completely free. Bring your own Fast2SMS API key — messages are billed to your own Fast2SMS wallet at your account rates, and delivery reports stay in your own Fast2SMS panel. No monthly fee, no per-site licence.
WooCommerce automations
- Order placed, payment received, order completed, cancelled, refunded
- COD order alerts + one-tap COD OTP verification link (reduce RTO)
- Abandoned cart recovery with configurable delay
- SMS, WhatsApp, or both per event — pick approved DLT / WhatsApp templates straight from your Fast2SMS account with variable mapping
OTP everywhere
- Login with OTP on the WooCommerce login form and wp-login.php
- Phone verification on signup/registration
[fast2sms_otp_login]shortcode for any page or Elementor- OTP verification on Contact Form 7 (
[fast2sms_otp]tag), WPForms and Elementor Pro Forms ([fast2sms_otp_verify]) - Rate limits built in: per-phone, per-IP, attempt caps and resend cooldown
Bulk campaigns
- Send an approved template to all customers, all users, or a pasted/CSV list
- Queue-based sending with automatic retries and full logs
More
- Wallet balance and SMS count in the dashboard header
- Admin SMS/WhatsApp alert on form submissions
- Low-balance email alert
- Message logs with masked phone numbers
- Phone numbers and API key encrypted at rest (AES-256-GCM), automatic data retention purge
Works without WooCommerce too — OTP login, form OTP, form alerts and campaigns run on plain WordPress. WooCommerce-only features light up automatically when WooCommerce is installed.
Requirements
- A free account at fast2sms.com with your own API key
- For SMS: approved DLT templates in your Fast2SMS panel
- For WhatsApp: approved WhatsApp templates in your Fast2SMS panel
- For OTP: an OTP ID created in your Fast2SMS panel (Smart OTP section)
- Target market: India (10-digit Indian mobile numbers)
Guides & documentation
- Complete setup guide — every feature, step by step
- OTP login for WordPress and for WooCommerce
- SMS & WhatsApp order notifications and WhatsApp-only setup
- WhatsApp OTP with SMS fallback
- DLT registration explained for store owners
- Bulk SMS campaigns from WordPress
- WhatsApp Business API setup
External services
This plugin connects to the Fast2SMS API (https://www.fast2sms.com) to send SMS/WhatsApp messages, send/verify OTPs, fetch your approved templates and read your wallet balance. Your API key and the recipient phone numbers of messages you configure are sent to Fast2SMS for this purpose. See the Fast2SMS privacy policy and terms.
No. You bring your own Fast2SMS API key; message costs are billed by Fast2SMS to your own wallet at your account’s rates.
Yes. OTP login, registration OTP, form OTP, form submission alerts and bulk campaigns work on plain WordPress. Order notifications, COD verification and abandoned cart recovery require WooCommerce and unlock automatically when it is installed.
Contact Form 7, WPForms and Elementor Pro Forms — both for OTP verification and admin submission alerts.
Phone numbers, message variables and your API key are encrypted at rest with AES-256-GCM. Phones are masked in all screens and logs, and old records are purged automatically on a schedule you control.
Indian DLT regulations require pre-approved sender IDs and templates for SMS. Manage them in your Fast2SMS panel; the plugin fetches your approved templates for one-click selection.
India only. Fast2SMS sends to Indian 10-digit mobile numbers with full DLT compliance as required by TRAI. If your customers are outside India, this plugin is not for you.
For SMS, yes — it is mandatory in India for every business. Fast2SMS provides free dedicated DLT support to get you registered. WhatsApp messages need no DLT, only Meta template approval. DLT explained in simple English.
Yes. Create a Smart OTP in your Fast2SMS panel with WhatsApp as the primary channel and SMS as automatic fallback (or the other way around). The plugin follows whatever the OTP ID is configured for — no code changes.
Create a free account at fast2sms.com and copy the key from the Dev API section. Paste it into the plugin dashboard and it is validated live.
Plugin details
Tags on WordPress.org
