Unlock WhatsApp's Power

Reliable and scalable WhatsApp Messaging API for Your Trust!

Connect with your customers all over the world through TrustSignal powered WhatsApp messaging. Use data-driven approach to deliver a personalized experience to your customers.

WhatsApp Messaging API for Your Trust


We empower you to effortlessly create your ideal WhatsApp engagement solution.

Connect with customers on WhatsApp using our conversation-based pay-as-you-go pricing.

Get the most reliable WhatsApp service on a trustworthy platform!




Deliver one-way communication including alerts, notifications, promotion, and marketing messages seamlessly using an API.




Maximise ROI on ad spends with interactive click-to-chat ads. Tailor custom conversational experiences with just a single API by personalising 1-to-1 or multiparty conversations for customer care and conversational commerce.

Why does your company require the superior TrustSignal WhatsApp API

No Language barrier

Provide seamless multi-lingual support with automatic template translation, ensuring conversations in the user's preferred language.

Diverse communication formats

Enhance campaign effectiveness with compelling images, videos, PDFs, CTAs, and quick-reply buttons, fostering dynamic and interactive two-way conversations.

Analytics for in-depth insights:

Elevate service quality with comprehensive insights on trending user queries, stages of engagement, reasons for drop-offs, and swift query resolution times.

Swift Onboarding

Rocket speed the onboarding by streamlining tedious groundwork, simplifying verification processes, and expediting security approvals for a 50% faster experience with the help of our experts.

Boost returns from ad spends with click-to-chat ads

Improve lead quality, nurture and engage better with ads that click to WhatsApp

Maximize your sales by setting up a store on WhatsApp.

You can use WhatsApp product messages through commerce API to display relevant products from your catalog.

These messages can be interactive and showcase single or multiple products from your inventory. Additionally, customers can add products to their shopping cart without worrying about outdated information like prices and availability.


Upsell & cross-sell revenue

Use Case

Cut down on COD orders to minimize RTO losses.

One important WhatsApp Business API Use Case is lowering COD order losses!

40% of COD orders (of which 70% are returned to the warehouse; this doubles the shipping costs that firms must pay).

How then do you minimize it?

One of our clients used this strategy to cut down on COD orders: anytime a customer placed an order with COD as the payment option, they would send an offer on WhatsApp, such 10% discount if you pay now, to encourage the user to finish the payment in advance.

This was a great success, allowing them to convert 40–50% of COD orders into prepaid ones.

You may drastically minimize losses by RTO and cut COD orders for your e-commerce business by providing fast discounts.

Why use TrustSignal for WhatsApp services?

Intelligent SMS Routing

Multimedia Messaging

Enhance communication depth with diverse material, like documents, movies, & photos.


Send transactional notifications to users, including order confirmations, shipping updates, and appointment reminders.

Link shortener

Rich Link Previews

Share links with rich previews, providing users with more context about the content before they click.

Multi-lingual support

Automated Responses:

Automate responses to FAQs or acknowledge messages to boost customer service efficiency.

Explore the Key Features of the WhatsApp Business Platform for Users

Customer Opt-In

Users must opt-in to receive messages from a business on WhatsApp. This ensures that businesses communicate only with users who have expressed interest.

Automated Responses

Set up automated responses for common queries or to acknowledge user messages, enhancing efficiency in customer support.

We stands proudly as an award-winning company, consistently pushing the boundaries of innovation to enhance the way businesses communicate.

Explore our achievements as a global CPaaS leader.

One Platform - Many Industries

Delight shoppers with easy product discovery, guided selling, loyalty program alerts, coupons, re-buys and after-sales engagement

Boost digital finance adoption with instant balance inquiries, portfolio recommendations, hassle-free claims settlement, cross-sell and more

Simplify financial services with easy KYC, instant payments, credit card renewals, EMI collections, lead generation and service requests

Revolutionize your restaurant operations with WhatsApp based ordering, meal and add-on recommendations, payments and real-time delivery updates

Build a direct relationship with your customers by showcasing your catalog, sending abandonment nudges, responding to product queries and providing easy order tracking

Uniting Different Industries on a Single Platform

Boost your buying experience with easy finding, shrewd selling, loyalty benefits, discounts, repurchases, and after-sale communication.

Quick balances, intelligent portfolios, simple claims, and seamless cross-selling are ways to speed up fintech.

To improve visitor interactions, put services on display, encourage reservations, respond to questions, and make reservation monitoring easier.

Transform dining: Use WhatsApp to easily order, recommend, pay for, and follow meals.

Present catalogs, encourage abandoning, respond to inquiries, and follow up on orders with clients directly.

Global Impact, Seamless Delivery

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Billion Annual Messages
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Millions Voice pulses annually

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API Uptime

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Operators Connections

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Pushing our boundaries to become the top cpass providers by continuously inventing and enhancing client interactions.

Explore our achievements as a global CPaaS leader.

Let our experts handle your communication
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This is how TrustSignal builds trust with its clients!!

santhosh.p santhu
santhosh.p santhu
Good service by trustsignal team.Always there to help to solve business problems.
Kirankumar BM
Kirankumar BM
Good experience in working with Trust signal for handling the sms. Trusted partner to handle any kind of campaigns. Supportive team and can get assistance at any given point of time. Highly recommended for any kind of communication activities since the delivery rate is considerably good.
Bhavik Naik
Bhavik Naik
One of the best in Business. Always there to help in any situations.
Nishanth Kanna
Nishanth Kanna
Good team who're always prompt and crisp to provide solutions to any operational blocker over their seemless product as well
Sonali Singh
Sonali Singh
Amazing support and great account management!
N Stephen
N Stephen
Service is upto the mark 👏. I really appreciate the work done by the team even on holidays 👌. Team bonding is very good and they always do the work under TAT.
Administration Team
Administration Team
Great service by Trust Signal team. Very quick to respond on requests and amazing analytics on campaigns. Thanks for the same team.
Saurabh Meena
Saurabh Meena
I've been utilizing the services of A2p for quite some time now, and I must say, I'm thoroughly impressed. From their seamless user interface, dedicated support to their lightning-fast delivery, they've consistently exceeded my expectations.

Frequently Asked Questions

WhatsApp Business API is a powerful communication tool that enables businesses to exchange an unlimited number of messages with customers on WhatsApp.

While WhatsApp API supports chatbot integration, it is not a chatbot in itself but a platform that facilitates interactive customer communication.

WhatsApp Business is a standalone app for small businesses, whereas WhatsApp Business API is designed for medium to large enterprises, offering more extensive features and integration options.

Utility conversations: Facilitate a specific, agreed-upon request or transaction or update to a customer about an ongoing transaction, including post-purchase notifications and recurring billing statements

Authentication conversations: Enable businesses to authenticate users with one-time passcodes, potentially at multiple steps in the login process (e.g., account verification, account recovery, integrity challenges)

Marketing conversations: Include promotions or offers, informational updates, or invitations for customers to respond/take action. Any conversation that does not qualify as utility or authentication is a marketing conversation.

Service conversations: All user-initiated conversations will be categorised as service conversations, which help customers resolve enquiries.