WordPress admin dashboard connected to SMS sending on a phone
Custom Plugin Development

A WordPress SMS Plugin Built Around Your Gateway

SMPP Center designs and develops WordPress SMS plugins that connect your site to the SMS API you already use, or to the SMPPCenter HTTP and SMPP APIs. OTP, WooCommerce alerts, bulk campaigns, delivery reports, and DLT-ready templates, all from wp-admin.

REST / JSON SMPP SMPPCenter API DLT India

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What the Plugin Can Do

Every module is a first-class wp-admin screen with capability checks, nonce protection, and delivery logs you can audit.

Bulk & Group SMS

Send to lists, roles, or WooCommerce customers. Unicode and GSM-7 length counting, scheduled sends, and per-campaign delivery reports.

OTP & 2FA

Generate, send, and verify one-time passwords for login, checkout, and forms. Rate limits and retry-after windows included.

WooCommerce Alerts

Order placed, paid, shipped, and cancelled events with shortcodes for order ID, amount, and tracking. Admin copies optional.

DLT Templates

Map WordPress events to approved template IDs and sender IDs. Variable placeholders stay in the registered {#var#} format.

Delivery Reports

Store transaction IDs, pull DLR status, and surface failures in wp-admin. Reconcile unknown timeouts without blind retries.

Webhooks & Hooks

Incoming SMS into WordPress. Outgoing actions via native do_action hooks so other plugins can trigger SMS without forking ours.

WordPress plugin cube connected to REST API, SMPP, and SMPPCenter
Gateway Flexibility

Any Documented API, or SMPPCenter From Day One

Most WordPress SMS plugins lock you to one gateway. We build the plugin around your API contract: SMPPCenter, or any documented REST, JSON, XML, or SMPP interface your operator provides.

Bring Your Own SMS API

  • API key, Basic, HMAC, or OAuth2 credentials stored in WordPress options
  • JSON, form-encoded, or XML payloads
  • Custom headers, IP allowlists, and sandbox vs live toggles
  • Idempotency keys so timeouts do not double-send

SMPPCenter API

  • Sender ID, template ID, and route class in the send form
  • Balance and credit checks before large campaigns
  • Transaction ID stored against each WordPress event
  • Same admin UX whether you start on SMPPCenter or switch later

Built Like a Product, Not a Weekend Snippet

Custom plugins we ship follow WordPress coding standards, VAPT-minded input handling, and a settings model your team can extend.

  • Capability-checked admin menus and REST routes
  • Sanitized inputs, prepared queries, no raw SQL in controllers
  • API secrets stored outside the browser, never logged in full
  • WP-CLI commands for bulk backfills when you need them
  • Handover docs, staging install, and a changelog on every release
WooCommerce, OTP lock, and SMS notification cards for a WordPress plugin
How We Work

Four Steps From Brief to wp-admin

Four equal cards showing Brief, Design, Build, and Launch
1

Brief

API docs, DLT headers, WordPress version, and the events you need to notify. We confirm scope before a line of code.

2

Design

Admin information architecture, field map, template variables, and error states. You sign off the screens.

3

Build

Plugin code, gateway adapter, logs, and staging install on your WordPress site or a replica we host.

4

Launch

Production credentials, test OTP, live DLR check, handover notes, and optional retainership for updates.

India-Ready From the First Send

Shield and DLT checklist for India SMS compliance
Capability What We Ship
DLT template IDs Every outbound message can carry the approved template and entity ID.
Sender ID binding Admin picks from approved headers. No free-text sender that will fail at the operator.
No double-send on timeout Claim-before-send uniqueness so a slow API does not bill twice.

Want a WordPress SMS plugin on your stack?

Send API docs and the events you need. We will scope, build, and hand over the plugin.

Talk to a Specialist

FAQ

Frequently Asked Questions

Yes. If the provider documents authentication, a send endpoint, and preferably a delivery callback, we can wrap it. That includes REST, form posts, XML gateways, and SMPP-style HTTP adapters, including the SMPPCenter API.

SMPP Center licensees, aggregators, and enterprises that need SMS, OTP, or WooCommerce alerts from WordPress, pointed at SMPPCenter or at any other documented SMS API they already run.

Yes. India-facing builds include template ID, entity ID, and approved sender ID fields. Message bodies are designed around registered placeholders so sends do not fail template mismatch at the operator.

Yes. We implement generate, send, verify, expiry, and resend limits. OTP can attach to wp-login, WooCommerce checkout, Gravity Forms, or a custom REST endpoint your app already calls.

Yes. You receive the plugin source for use on your WordPress sites, as agreed in the project brief. We do not lock the adapter behind a separate SaaS unless you ask for a hosted add-on.

Send API docs, WordPress version, and the events you want to notify. We reply with scope, timeline, and a quote, then build, stage, and hand over the plugin.

Ready to connect WordPress to your SMS routes?

Chat with us

Client Feedback

What Our Clients Say

Our clients run regulated, high-volume messaging infrastructure and prefer not to be named publicly. These testimonials are shared with permission while keeping commercially sensitive details confidential.

High throughput, intelligent routing, and detailed monitoring have significantly simplified our messaging operations.
Operations Manager, Telecommunications Provider Kenya 8 million SMS per month Runs SMPP Gateway Client since 2023
Excellent documentation, responsive technical support, and an enterprise-grade platform that scales as our business grows.
Engineering Manager, SaaS Provider Canada 5 million notifications per month Runs Messaging Platform Client since 2022
We evaluated several messaging platforms before selecting SMPP Center. The deployment flexibility and API capabilities matched our enterprise requirements.
VP of Engineering, Technology Company United States 20+ integrated applications Runs Enterprise SMS Gateway Client since 2020
The delivery reports and routing controls give us the visibility we were looking for. The system has integrated well with our internal applications.
Head of Technology, Enterprise Communications Company South Africa 4 operator routes Runs SMPP Server Client since 2021

Names and company details are withheld at our clients' request. This is common among telecom providers, SMS aggregators, fintech companies, and enterprises that consider their messaging infrastructure commercially sensitive.

BUILD A WORDPRESS SMS PLUGIN FOR YOUR API

Tell us which SMS API you use, your WordPress version, and the events you need to notify. We will scope a custom plugin for SMPPCenter or any documented gateway.

TALK TO A SPECIALIST