The TrueDialog SMS API

More pre-built features than other SMS APIs. 

Why build what we’ve already built?

Code Less. Move Faster. Save Money.

TrueDialog’s SMS API is enterprise-grade with more pre-built features than any other SMS software. Built for developers and hosted in the Microsoft Azure cloud, our SMS API is highly reliable, secure and includes a pre-built ISO 9001 database for extra opt-out and compliance protection. Also available through our full-featured Enterprise-Grade SMS Texting Software.

Enterprise-Grade Software & Deliverability

Our fully-documented SMS API is hosted in the Microsoft Azure Cloud, is highly secure and reliable with 99.9% uptime. Unlike many of our competitors, TrueDialog has invested in building direct carrier connections which eliminate the middleman and provide our customers with two huge benefits: 1) it improves deliverability by reducing potential points of failure and reliance on third parties; and 2) it allows us to price our service significantly lower than our competitors. Our Enterpise-Grade Software is built for large scale businesses.

More Efficient SMS API: Lighting Fast With Less Bandwidth

Our campaign endpoint lets you send millions of messages with just one API call. Other providers require one API call for each message sent. Stop taxing your systems and bandwidth and get faster delivery.

SMSafe Dual Opt-Out Database

TrueDialog maintains our own duplicate Opt-Out information in our ISO 9001 cloud-database for extra protection against accidentally texting a contact that has Opted-Out. To achieve this same level of protection on other SMS APIs developers would have to build this capability themselves. This is a significant cost to us, but is greatly valued by our enterprise customers who are serious about compliance.

Our Unique “TrueDialog” Feature

We provide pre-built two-way text dialogs that create threaded, seamless conversations at scale.  No need to build and link all conversations using old “2 way” technology. With our proprietary “TrueDialog” Feature & Contact Center SMS Software, scalable multi-user 2-way texting is pre-built and ready to go.

Pre-Built Mobile Apps & Call Center Module

Pre-built Android and IOS mobile apps with full administrative controls. Mobilize your call center agents to engage in “TrueDialog” at scale.

Major CRM Integrations

Seamlessly integrate SMS Texting into information systems & CRM platforms. Our SMS Integrations are truly native to enable seamless text messaging inside Salesforce, Microsoft Dynamics, Marketo, Hubspot, Oracles’ Eloqua, Campus Nexus, Velocify and others.

Drill Down Reports

Use our prebuilt reporting or build your own custom reports with our report endpoints. Drill-down into metrics, response rates and analytics on campaigns and also get admin reports for staff and call center agent productivity. Our CDR logs are stored, searchable and retrievable for compliance and to easily research text message history.

Scheduling Engine

Schedule campaigns anytime using our Flex Schedule capabilities. No need to use 3rd party scheduling, ours is built in.


With our full suite of calling APIs, you can easily deploy click-to-call, bridge calls, conference calls, recorded audio, and call forwarding.

Professional Administrative Controls

Contact center directors and managers can monitor response times, language and grant access to different agents at various levels of functionality: mass texting, individual texting and view only. When a rep leaves your organization, you keep the phone number, contacts and all text conversation history to maintain uninterrupted customer service.

Free Multi-Channel Urgent Alert System

Send instant Mass Notifications and Alerts with SMS Text and Voice. Urgent Alert System included at no cost to our enterprise customers.

How does TrueDialog SMS stack up to the competition? 

Unlike API-only competitors, TrueDialog offers both a complete turnkey enterprise SMS texting platform as well as an SMS API. As a result, our SMS API customers have seamless access to all of our pre-built features, a clear advantage to our API-only competitors. So if you want to save money, code less, and move faster, see how we compare.

API Access
Pre-Built “TrueDialog” Feature
Messages Per Second 240 100
Contact Center Agent SMS Solution Included
Single API Call – Millions of Messages
Free Multi-Channel Urgent Alert System
SMSafe Cloud-based Dual Database
Pre-built Message Scheduler
Android & iOS Mobile Apps
SMS API Endpoints 47 3
Drill-down Multi-tiered Reporting
Contact Segmentation
Built-in Unsubscribe
Dedicated Long and Short Codes
Shared Short Codes (pending carrier approval)
Coupon System
Need CRM and Marketing Integrations? Look No Further.

TrueDialog’s cloud-based platform has an API-first approach, enabling seamless integrations with most CRMs like Salesforce and Microsoft Dynamics. Segment, personalize, and automate mass text messages at scale.

Our fully-documented SMS API is the newest and most fully-featured in the business. We have already built more of what you need. Move Faster. Code Less. Save Money.