Alternatives to TeleSign
Compare TeleSign alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to TeleSign in 2025. Compare features, ratings, user reviews, pricing, and more from TeleSign competitors and alternatives in order to make an informed decision for your business.
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Twilio Messaging
Twilio
Twilio's Messaging API is a powerful tool that enables businesses to integrate messaging capabilities into their applications seamlessly. It offers a stable RESTful API that allows developers to send and receive SMS, MMS, and WhatsApp messages globally. With Twilio's Messaging API, businesses can automate and scale their communications, ensuring messages are delivered over the preferred channels of their customers. The API supports a variety of sender types, including long codes, short codes, toll-free numbers, and alphanumeric sender IDs, providing flexibility in how messages are sent. Additionally, Twilio's Messaging Services feature allows companies to group global senders and enable intelligent sending, automating sender selection, and handling compliance regulations. The API also supports inbound webhooks, allowing businesses to handle responses programmatically and engage in two-way conversations with their customers. -
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Sendbird
Sendbird
Sendbird is the omnichannel AI agent platform enterprises choose to elevate customer experience, by initiating autonomous support & sales conversations, keeping humans in the loop for complex inquiries, and re-engaging customers with proactive business messages. Combining omnichannel AI and a battle-tested, award-winning communication APIs, Sendbird enables businesses to build AI agents and meaningful customer connections at scale. Sendbird’s AI-powered customer service platform helps businesses deliver scalable, omnichannel support through intelligent AI agents. These agents work seamlessly across channels like mobile apps, web, SMS, and social media, providing instant and proactive assistance to customers 24/7. With the ability to integrate into existing customer support tools, the platform enhances resolution rates, reduces response times, and improves customer experience by offering a unified view of all interactions. -
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Twilio
Twilio
Design and deploy your ideal customer engagement experience. Twilio is a single fully-programmable platform with flexible APIs for any channel and over 400+ integrations, backed by a community of over 9 million developers. Build accurate and personalized experiences for your customers, easily and at scale, using SMS and WhatsApp messaging, voice, video, email, and more. Browse documentation and SDKs in multiple coding languages, including Ruby, Python, PHP, Node.js, java, and C#, or jumpstart your first project with our open source code templates to quickly build production-ready communications apps. Sign up and start building today. -
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Notifyre
Notifyre
Elevate your business communications with Notifyre's secure SMS and fax solutions. We're ISO 27001 certified and fully HIPAA compliant, providing BAA's, user access controls and audit trails and more security features. Benefit from flexible pay-as-you-go fax & SMS and outstanding value receive fax plans. Fax service features include: - Online Fax Platform - Email to Fax and Fax to Email - Fax API -Online Fax Numbers -Fax Number Porting -Fax Broadcast Text messaging service features include: - 10DLC Registration -> Book a Demo for one-on-one guidance! - SMS Online, Email to SMS, SMS API - Mass Text Messaging & SMS Marketing - Subscriber Management Tools - Bulk Upload Contacts to Address Book - Create SMS Templates & Personalization Fields Outstanding value and 5-star service. Our dedicated team are here to help. We are 100% committed to providing the very best service. -
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Twilio Voice
Twilio
Create a scalable voice experience with the API that connects millions globally. With Twilio Voice, you can build unique phone call experiences with one API, to create, receive, control and monitor calls with just a few lines of code. Create an engaging voice experience that you can quickly scale and modify with a wide array of customization options and resources, like our Voice SDK. Then, add on features like Interactive Voice Response (IVR), recording transcriptions, and speech recognition to create an experience that your customers will appreciate. Whether you're looking to set up global conferencing or alerts & notifications, Twilio has the support you need for building with Voice. Find docs, code samples, helper libraries, and developer tools such as Twilio Runtime and our visual workflow builder, Studio.Starting Price: $0.0085 per min -
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Twilio Verify
Twilio
100% Protection from SMS pumping fraud with Verify. Verify is a fully managed API for multichannel user verification. And it now includes guaranteed protection from SMS pumping fraud with Fraud Guard. Terms apply. A multi-channel user verification solution in one turnkey API. Add seamless two-factor authentication to your onboarding and login flow with a single API that does the work of a full one-time password (OTP) delivery solution. Fraud Guard has already saved customers over $46 million by blocking over 398 million* fraud attempts. With first-to-market innovation, Fraud Guard offers 100% protection against SMS pumping fraud. Quickly integrate a ready-use solution that handles all your connectivity, channels, code generation, fraud monitoring, and more using native software—so you don’t have to. Reduce fraud across your multi-channel user experience with phone number verification that uses one API endpoint to validate users and detect fraud with minimal friction.Starting Price: $0.05/successful verification -
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CM.com
CM.com
Mobile communication and payments solutions. Combine messaging channels like WhatsApp with innovative payments to create true Conversational Commerce. We help companies communicate. Our customers use SMS, Voice and the world’s most popular chat apps: WhatsApp, Apple Business Chat, Google RCS. Start the conversation in the channel your customers prefer and let the AI bot do the talking. Integrate commerce in the conversation to drive conversions. CM.com is a licensed Payment Service Provider, offering a range of options for any channel with Apple Pay, Google Pay, WeChat Pay, Credit Cards and local payments like iDeal and Bancontact. CM.com is also a Ticketing platform helping festivals, museums and stadiums sell and manage any type of ticket. The Customer Data Platform takes marketing to a personal level. Identity and e-sign solutions assure authentication in any transaction.Starting Price: $0/month -
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Infobip
Infobip
Infobip is a global leader in omnichannel engagement powering a broad range of messaging channels, tools and solutions for advanced customer engagement, authentication and security. With over 700 direct carrier connections and 60+ offices on 6 continents, Infobip is the #1 choice of some of the world's biggest companies to scale their customer communications. We help our clients and partners overcome the complexity of consumer communications, grow their business and enhance customer experience, all in a fast, secure and reliable way. With Infobip, you can achieve deeper customer engagement across the widest selection of local and global channels, including: SMS MMS RCS Live Chat WhatsApp Business Apple Messages for Business Facebook Messenger Instagram Business Telegram Viber Voice / VOIP Video Email -
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SignalWire
SignalWire
An elastic communications cloud with advanced APIs for voice, SMS and video designed by the original geeks of software-defined telecom. When your audience is large, your brand is premium, and you won't settle for janky video conferencing UX, you want this. Real time, granular control over call flows, routing, and codecs. 300% more responsiveness than you get with REST. If you use AI in your voice apps, you just found your new favorite API. If you're more comfortable with REST than WebSockets or already use TwiML, these APIs are like TwiML...if TwiML suddenly knew Kung Fu. The SMS API makes it easy to move your expensive SMS traffic to SignalWire and cut your billio 50-80% in the process. Launch and scale communication products on infrastructure built for this decade and the next rather than running aground on the limitations of 2010s-era SaaS. Persistent, bi-directional connections between your video and voice apps and our infrastructure means 300% more responsiveness. -
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Telnyx
Telnyx
See how the developer friendly Telnyx API can transform your business communications. Telnyx is an all-in-one communication platform designed to be tailored exactly to your needs. We created our network with real-time communications in mind so we can deliver quality calls, messaging, and data around the world. Easily build reliable messaging with our SMS API. Keep your data safe by setting up two-factor authentication using SMS or voice codes. Plug and play your VoIP setup in minutes and get carrier-grade voice with elastic SIP trunks. Our cloud-agnostic approach means you can rest easy knowing you are protecting in case of a network failure. With Telnyx deploy communications exactly to specifications. -
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smsmode
smsmode©
Communication Platform As A Service (CPaaS). smsmode© provides complete mobile messaging routing services. SMS, TTS, Google RCS or WhatsApp Business. Connect with your customers around the world via our innovative and powerful tools, with the level of security you need to ensure. smsmode© integrates easily with your existing tools to increase their potential through mobile messaging. Use our REST API, SMPP and plugins to create these custom integrations with your applications, CRM, ERP, and more. Our documentation and our experts will help you to reach your goals! European solution GDPR compliant ISO 27001 & 27701 99.95% SLA Responsability Europe CSR CommitmentStarting Price: €9 per month + 4.40 cts / SMS -
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ClickSend
ClickSend
ClickSend offers SMS, MMS, Voice, Online Mail, Email and Fax software for businesses. Our communications and messaging tools are simple to use, automate and integrate. That’s why they’re used by some of the most trusted brands, organisations and developers globally. Built for all, you can access ClickSend via our Dashboard, mobile app, flexible API or 900+ integrations. Plus, ClickSend offers helpful 24/7 support, and lightning fast delivery via a secure and reliable platform. From SMS marketing and alerts to bulk mailouts sent from your browser, join over 90,000+ businesses sending communications around the world. Our 100% uptime guarantee and lightning fast direct routes provide reliable messaging, no matter the channel. From small businesses to enterprise, ClickSend powers billions of messages around the world with 232+ direct carrier connections. Plus, ClickSend is always pay-as-you-go. That’s why ClickSend is business communications, solved.Starting Price: $20 minimum topup -
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Textmagic
Textmagic
Textmagic is an all-in-one business text messaging platform designed to help companies send bulk texts, manage two-way conversations, and automate notifications with ease. The platform's streamlined features, such as scheduled messaging, customizable templates, contact management, and WhatsApp integration allow you to connect with customers globally in just a few clicks. Textmagic also helps you optimize and monitor SMS campaigns in real time with robust reporting tools that offer insights into delivery rates, engagement, and response times, ensuring transparency for every message sent. For businesses needing deeper integration, Textmagic’s SMS API and Zapier compatibility make it easy to connect with websites, CRMs, and other apps, enabling seamless automation. Whether for marketing, notifications, or internal communication, Textmagic can provide the tools to simplify your messaging efforts, with flexible pricing and reliable support to back up any company’s growth.Starting Price: $24.50/500 texts -
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Gupshup
Gupshup
Headquartered in Silicon Valley, Gupshup is a leading conversational messaging platform that enables businesses to build engaging conversational experiences seamlessly across 30+ messaging channels using a single API. Gupshup offers an easy-to-use omnichannel messaging API, advanced bot-building platform and mobile marketing tools. Gupshup's messaging platform handles over 6 billion messages per month enabling over 39,600 businesses send messages to several billion users across popular messaging channels such as SMS, Voice, WhatsApp, Mobile Web, Android RCS, Instagram, Twitter, Telegram, WeChat, FB Messenger, Slack, Viber, Skype and many more. Gupshup's constant innovation enables it to offer market leading features on its platform, enabling developers to build Interactive, Programmable and Rich omni-channel CX journeys across messaging servicesStarting Price: $0.01 -
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Signalmash
Signalmash
Why work with giants like Twilio where your support requests will take forever to get a response? Signalmash is not just a CPaaS provider, we take pride in providing the best possible CPaaS support. Your developers can have a shared Slack channel with our developers for instant support. You can speak to our CEO anytime. Real-time and top-notch support means shorter development cycles and enables you to provide exceptional support to your own customers. SMS services we offer: SMS API SMS CPaaS SMS UCaaS SMS no-code sending platform 10DLC campaign support Short code SMS Toll-free SMS Voice services we offer: Contact center telecoms Voice termination Voice orgination Local numbers Short code numbers Toll-free numbers SIP Trunking Our No-code telecoms solutions: UCaaS to send SMS CCaaS to manage phone calls AI solutions Signalmash - experience the highest level of support, every step of the way - book a call with us to get expert advice!Starting Price: $0 -
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MobiWeb
MobiWeb
Reach customers in the most immediate, personal and direct way with SMS messaging. From secure messaging, one-time pins and missions-critical transactions to marketing notifications and service alerts, intergrate SMS functionality to your business services, websites and mobile applications. Connect with a single unified API to our carrier-grade platform and connect your business with 7+ billion subscribers of 1000+ mobile operators. Security: Secure your business, verify customer transactions, authenticate customers and prevent fake accounts. Protect customers, brand reputation and enhance customer experience. Marketing Automate marketing, boost lead generation and drive sales. Engage your customers and send marketing campaigns, real-time notifications, order confirmations, tracking updates and personalized messages. Customer Service Provide efficient and real-time support with notifications and personalized messages. Reduce resolution time and increase availabilityStarting Price: €0.002 per SMS -
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Imprint Analytics
Imprint Analytics
We help our customers verify their users’ identity with accuracy and efficiency when their users perform an action or make transactions. “Cause for Pause” is our defining motto because that’s what matters most to our customers. By stopping the automation to assess the individual better, our customers prevent fake identities, bots, scams, bad actors, and, ultimately, fraud from their platforms. We offer scores on all US adults (270 million+) across an array of use-cases relating to synthetic identity and e-commerce fraud. - Top-Level Identity Score - Phone Verification - Email Verification - Address Verification - IP Verification - PII Combinatory Linkages 1. Scores are trained against known outcomes of fake identities 2. Highly advanced data-science and machine-learning techniques utilized 3. Scores are built on top of our market-leading identity graph consisting of online and offline consumer data, historical data, and public filingsStarting Price: $.07 per record -
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Creating Customer Journeys Through Conversations. Engaging experiences that move with your customers. Loved by developers. Built for business. Vonage Communications APIs (formerly Nexmo) helps growing startups and agile enterprises enhance their customer experience and realize new business outcomes at scale. With our easy-to-use APIs, global platform, and expert support, you can abstract the complexity of communications and innovate faster. Reimagine voice interactions to redefine your customer experiences. Make each message count as an opportunity for your customers and your business. Enhance security and privacy—and create seamless login experiences. Build modern, high-quality voice applications in the cloud. Programmatically send and receive SMS in practically every country. Get real-time intelligence on any phone number in the world. Make and receive calls from the cloud with your existing VoIP infrastructure.
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Bird
Bird
Bird (formerly MessageBird) is the next-generation CRM for Marketing, Sales, and Payments, powering over 5 trillion annual messages across Email, SMS, and WhatsApp. Leading brands grow cost-efficiently with Bird through personalized interactions on Email, SMS, and WhatsApp. The world's most innovative companies build communication solutions using Bird's applications and APIs. Get started today and talk to your customers over any channel, for any use case, anywhere in the world. Marketing messages, push notifications, order updates, delivery alerts and more. Operational bottlenecks slowing your growth? Use automated conversations and workflows to collect critical information up front, reduce manual tasks, implement self-service flows, and route chats to the right agent. Get up and running in minutes on our reliable, auto-scaling APIs with extensive documentations, complete API references and intuitive SDKs.Starting Price: $45 per month -
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Sinch
Sinch
Engage your customers like never before - on any channel. CPaaS and APIs for SMS, Voice, Video & Verification. Reach every mobile phone on the planet, in seconds or less. Engaging your customers the right way can help you more than double webshop orders. We know - we helped a major telco company do just that with a friendly online chatbot. We helped a major automative company re-engage and convert end-of-funnel prospects not responding to email. The results of the personalized Rich SMS campaign speak for themselves. Are your customers missing appointments? Engaging SMS reminders help both them and you, making you more revenue. Tried and trusted by developers around the world. Build with confidence and boost your business - with just a few lines of code. Get closer to your customers and add value to every step of their journey. -
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Plivo
Plivo
Access high-quality cloud communications at a low cost with Plivo Communications Platform, a Cloud API Platform and a Global Carrier Services Provider. Plivo Communications Platform enables users to make phone calls to all countries, buy local phone numbers in 55 countries, send SMS to all countries, and more. Available 24/7, Plivo Communications Platform also features free tech support by experts that are happy to assist customers with their issues.Starting Price: $.005 / SMS -
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QuickBlox
QuickBlox
Build your own messenger with chat and video calling in minutes using QuickBlox chat API and SDK. QuickBlox provides instant messaging API that allow chat and calling functionality to be added to any Android, iOS, or Web application. All features that you need to build a great messaging application. High quality one‑to‑one and group calling built on WebRTC. Flexible data and file storage that compliments your messaging. Integrate your current business processes with real‑time alerts and notifications. Share and link all types of files (images, audio, video, docs, and other file formats). Over 30,000 software developers and organizations worldwide are using QuickBlox messaging API. QuickBlox is a HIPAA‑compliant chat solution trusted by Healthcare businesses worldwide. We serve a variety of customers ranging from large corporations storing millions of healthcare and insurance records to startups entrusting their telemedicine communication to us.Starting Price: $99 per month -
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Bandwidth
Bandwidth.com
You want the best quality voice, messaging, and more. To get them, you need the only API provider with its own nationwide network. You can eliminate the middleman, save on costs, give yourself more control, and build the application that your customers are craving. You’re not new to this, but you need a partner to help you reach the scale you know you’re capable of. Whether you’re bringing your own carrier or building your own solution from the ground up, Bandwidth has the tools you need to reach your maximum potential. Bandwidth is a communications platform with limitless flexibility. You need integrations, enterprise-class APIs, and tools to manage your communications stack intelligently. We are open where you need it the most, with optionality and control. Our global network is directly connected to where it matters most. Giving unmatched reliability. Bringing your customers closer. Scaling wherever your business takes you. -
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MirrorFly
CONTUS TECH
MirrorFly is a CPaaS platform that empowers businesses and enterprises to add real-time chat features to any app. MirrorFly CPaaS offers chat, voice, video,& broadcasting in an enterprise-grade infrastructure. MirrorFly AI Voice Agent solution is uniquely built for developers who want more than basic communication – specifically for businesses that want to go AI-driven Startups and large enterprises can build their own chat app with extensive customization and branding capabilities to add logos, brand color, and other brand elements. The self-hosted Chat APIs and SDKs offer 1000+ in-app messaging features with 100% customization. In addition, MirrorFly offers a dedicated developer team to support the end-to-end custom chat app development process. MirrorFly Readymade SDKs: 1. In-app Chat API 2. HD Video Call Solution 3. HQ Voice Call SDK 4. Self-hosted Chat Messaging Solution 5. SIP & VoIP Call Solution 6. AI Voice Agent 7. AI Chat BotStarting Price: $299 per month -
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CometChat
CometChat
CometChat is a chat API and in-app messaging SDK (software development kit) that enables users to integrate HD voice and video calling, as well as text chat functionality directly into their mobile and web apps. CometChat also supports features such as push notifications, read receipts, typing indicators, real-time translation, and more. CometChat allows users to create their own user interface for private or group chat applications. Customization tools let users personalize various elements of their chat app. The platform also provides users with the tools to add voice, and video calling and conferencing capabilities to their apps or websites. Users can also send and receive media files through CometChat, as the platform enables users to sync and share files like GIFs, photos, videos, and audio clips. Support for custom payloads mean users can send calendar invites, or share information like their location or event details to chat participants.Starting Price: $109.00/month -
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EnableX Communications APIs
vCloudx
EnableX makes integrating real-time communications into applications and workflows a lot easier. Designed and developed for Service Providers, Systems Integrators, and Developers, it provides a robust, scalable and secure communications platform without the complexity of building and maintaining the network infrastructure. By simply leveraging on EnableX comprehensive sets of programmable APIs and SDKs, developers can rapidly customize and embed all or part of the communication functions – voice, video, SMS and chat – right into existing applications, workflows and systems. Together with the Virtual Number services and advanced features such as AI and NLP, businesses can reach customers globally with an outstanding communication experience. -
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Agora
Agora.io
The Real-Time Engagement Platform for meaningful human connections. People engage longer when they see, hear, and interact with each other. With Agora, you can embed vivid voice and video in any application, on any device, anywhere. Agora provides the SDKs and building blocks to enable a wide range of real-time engagement possibilities. Our network monitors activity in real time and automatically selects the most efficient routing path for sub-second latency globally across 200+ data centers. Compatible with all popular development platforms and mobile-device friendly with minimal battery consumption. Architected to withstand sudden spikes in traffic, gracefully scaling from one to millions of concurrent users as your business demands. Developers can create unique experiences with our extensive APIs, customizable UI and pre-integrated third-party extensions. Deliver the best quality real-time voice and video to your users with ultra-low latency and intelligent routing.Starting Price: $0.0265 per minute -
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Stream
GetStream.io
Why spend months building in-app activity feeds and messaging from scratch when you can implement in just weeks with Stream's activity feeds and in-app chat APIs? Stream's reliable APIs, developer-friendly SDKs, and flexible UI kits enable product teams to quickly integrate polished communication functionality often found in social media platforms such as WhatsApp, Facebook Messenger, and Instagram. With an industry-leading 99.999% uptime SLA, over a billion end users, and 5 million concurrent connections recently supported in a single chat channel, Stream's APIs are highly scalable, making them ideal for enterprise-grade businesses and growing startup platforms alike. Ship fully-featured activity feeds and in-app chat functionality faster with easy-to-use software components that give your product a competitive edge. -
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CEQUENS
CEQUENS
Thousands of businesses rely on our cloud communications platform to build stronger connections with their customers. Communication Platform supports the world’s most innovative technologies and combines all possibilities making it a reliable tool for digital transformation and global connectivity. Send promotions, push notifications, delivery alerts, order updates, data surveys – whatever you can think of. Use rich media chat and chatbots to empower your teams and cater to every client’s needs – anytime, anyplace. Access a wide library of API references and custom-build your workflows as you see fit. Protect user identities or accounts against online fraud through secure 2-factor authentication and seamless verification experiences. -
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Apphitect
Apphitect
Seamless Integration of In-app Messaging SDK & Chat API for Mobile & Web Apps. A multi-faceted chat API & messaging SDK that supports to build instant messaging apps that power real-time communication with a native chat experience. Unified messaging API & chat SDK integration to extend the real-time communication with an extensive collaboration utilities of your Instant messaging app. The messaging SDK Can be easily integrated with third party integrations for extending the chat APIs functionality. Custom-built personal chat apps with rich UX, Voice & video call integration, Native messaging SDK support, multimedia sharing and much more. Built network communities & user-engaging social chat apps with real-time instant messaging characteristics. Apphitect instant messaging solution being a gives you the facility to create hangouts apart from one on one chats. Group chats certainly add vibrant to your mundane chat conversations.You can create hangouts on your mobile chat app. -
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Dyte
Dyte
Dyte's Video SDK and APIs are SOC 2, GDPR and HIPAA complaint. That lets you embed scalable, customisable and interactive video calls within minutes into your Web, Desktop or mobile apps. Collaborate efficiently with HD video, chat, screen sharing, whiteboard, emoji reactions, file sharing and everything a user packaged within one SDK. Dyte's Video Conferencing SDK & APIs are comfortable with React JS, Angular, JavascriptMobile: Flutter, Kotlin, Swift, React Native, Android, iOSDesktop, Electron. With an uptime of 99.99%, industry-leading documentation and out of the box plugins, customize the video experience for your ed-tech, tele-health, fitness, HR-tech, social or gaming platform. Use Dyte's SDKs to build fully custom video experiences powered by a robust infrastructure. With our out-of-the-box chat, plug-ins, recording, and several useful features, Dyte is an all-in-one SDK to help you take video collaboration to the next level. Dyte offers 10K free credits each monthStarting Price: $0 -
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8x8 APIs
8x8
Create more engaging customer experiences at scale with SMS, Chat Apps, Video & Voice APIs. Industry standard APIs make it easy to quickly automate notifications. 24/7 customer support ensures expertise is always there when you need it. Reliable delivery provided by our global, carrier-grade platform. Reach your customers anywhere with coverage across 190 countries and 130 network operators. Reliably reach customers anywhere with notifications, one-time passwords, reminders and alerts. Reach more customers with the ability to deliver messages across many different platforms through one API. Live support with the click of a link. Convert text to speech to create tailored, private messages at scale using this API. The Campaign Manager lets you instantly start sending SMS campaigns without integrating an API. Access the online portal, upload approved contacts and start communicating. -
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teli Messaging
Commio
Send any text campaign, alert, or notification effortlessly with teli’sMessaging API platform by Commio. From short to long code to toll-free SMS/MMS, we handle everything from campaign registration to message transmission and everything in between. Send millions of messages through major gateways to get your content delivered, faster. Plus, you can rely on our messaging delivery notifications and diagnostic tools to help you keep critical communications flowing. Our messaging experts are here to turn your vision into reality. Forget cookie-cutter messaging APIs, your use case is unique. We’ll size up your solution then work with you one-on-one to bring it to life. Because one-size-fits-all works for T-shirts, not business-critical messaging.Our SMS/MMS APIs give you the power to embed programmable messaging into any platform or application. With enterprise scale built-in, we can help you send more SMS messages, faster. -
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AWS Communication Developer Services (CDS) are cloud-based APIs and SDKs that help builders add communication capabilities to their apps or websites with minimal coding. Send promotions and marketing messages with top email inbox deliverability and segmented messaging. Build your application or website with scalable video technology that can support telehealth, field support, education, and more. Build an IVR system that can support touch-tone, conversation voice bots, and text-to-speech. Send messages at the right time with automated workflows and event-triggered cross-channel messaging. Determine who received messages with static or dynamic segmented lists.
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mesibo
mesibo
mesibo is a powerful real-time communication platform to quickly add robust real-time messaging, group chat, voice, and video calls, conferencing into your mobile and web applications. The key objectives while designing mesibo APIs were reliability, performance, and scalability. We have seen APIs as complex as the universe making apps unnecessarily complex and error-prone. We have instead worked hard to make mesibo APIs simple, yet powerful. In this section, we will explore mesibo real-time APIs in detail. It is highly recommended that you also refer to the source code of one of the mesibo sample app in GitHub to learn how APIs are used. This makes it easy for you to write cross-platform code across platform. In the following sections, we will describe APIs with name and parameters. -
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ChatCamp
ChatCamp
Realtime Chat SDK and Messaging API for Apps & Websites. Integrate in-app messaging in your mobile apps & websites using ChatCamp platform. Product architecture to scale infrastructure on the go. Perfected for handling thousands of users at a time. We use world class infrastructure of Google Cloud Platform to provide most reliable service. We follow best practices of the industry to insure data security and privacy. Focus on building your application. No need to worry about building chat from scratch. We have got you covered. Use our chat SDK and messaging API to build a fully functional chat application. Android, iOS, Javascript and Platform API.Starting Price: $199 per month -
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Authkey
Authkey.io
Authkey is a multi-channel CPaaS platform providing SMS API, WhatsApp Business API, Voice API, Email API, and Google RCS. It helps businesses send notifications, promotional messages, transactional messages, OTPs, 2FA, and more. Designed for responsiveness and ease of use, Authkey allows you to start without adding any credit cards. Authkey offers a free sandbox account for building, testing, and deploying. It supports easy-to-integrate APIs for all channels and over 1,000 automation options via Zapier, Pabbly, Integrately, and other partners. You can easily push bulk campaigns through all channels. WhatsApp Chatbot for intelligent customer query responses. Join over 200 active businesses working with us and grow together.Starting Price: $0 -
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DecisionTelecom
DecisionTelecom
DecisionTelecom is a global provider of Application-to-Person (A2P) messaging and voice communication services, offering an omnichannel platform for business messaging worldwide. As a licensed telecommunications operator, they provide direct channels for seamless integration with mobile network operators, ensuring high-quality message delivery across more than 190 countries. Their services include SMS, Viber, WhatsApp Business messaging, RCS, and high-quality voice calls, all accessible through user-friendly APIs and SDKs for easy integration into existing systems. Decision Telecom's mission is to enhance and simplify communication between companies and their clients, providing 24/7 professional support and personalized account management to ensure reliable and efficient service. -
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Azure Communication Services
Microsoft
Build rich communication experiences with the same secure platform used by Microsoft Teams. Azure Communication Services brings rich communication APIs to all your applications across any device, on any platform, using the same reliable and secure infrastructure that powers Microsoft Teams. Reach customers anywhere with a fully managed communication platform. Deliver video, voice, chat, and text messaging experiences anywhere your users are - across your applications, websites, and mobile platforms. Use a reliable global platform trusted by millions of users daily. Reach more users without compromising security, using the most secure and compliant cloud. Connect users across web and mobile apps. Add communications workflows to applications with flexible SDKs and APIs for common platforms and languages including iOS, Android, Web, .NET, and JavaScript. Benefit from a global, low latency network that auto-scales to meet your demand. Deliver reliable enterprise-grade calling, and chat. -
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MSG91
Walkover Web Solutions
MSG91, a cloud communication platform strives to help businesses and developers to seamlessly add communication to their services and software through communication APIs (SMS, Email, Voice, RCS, WhatsApp, and more) and ready-to-use solutions like Cloud contact center and customer segmentation products.Starting Price: $10.00/one-time -
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voximplant
voximplant
The industry’s true serverless platform for voice, video, and messaging APIs trusted by thousands of developers around the world to innovate and scale real-time communications for businesses of any size. -
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Aculab Cloud
Aculab
Aculab Cloud gives you powerful, programmable, easy to integrate APIs which allow you to make, take and interact with voice calls, send and receive SMS messages, and handle inbound and outbound fax - all with pay-as-you-go pricing and no specialist telephony equipment needed. Aculab Cloud builds upon Aculab’s core competence by combining complex technologies into a powerful, flexible and easy to use platform. Backed by a team of highly experienced engineers, Aculab empowers communication system developers around the world. In collaboration with Google and Amazon, we provide services, systems and software, already deployed in over 80 countries worldwide. We use proprietary Artificial Intelligence (AI) together with hand-crafted algorithms designed and refined through extensive experience in the use of telecommunications "in the wild". Designed in-house by engineers with an in-depth understanding of telecoms. -
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ZEGOCLOUD
ZEGOCLOUD
Embed engaging real-time voice, video, and in-app chat experiences into your apps with ZEGOCLOUD's communications APIs. Get started with 4 lines of code and enable enriched interactions with more features. Use our voice, video, and in-app chat SDKs to develop the exact communication features your users need to connect, share, and interact with each other anytime, anywhere. Liven up the interactions and elevate the vibes for your users with a rich set of add-ons, including emotionally responsive avatars, AI-powered video effects, whiteboards, and more. Monitor the quality of communications in real-time and gain insights into your user experience with our powerful monitoring and analytics tools, so you can respond to any issues swiftly and improve your services continuously. ZEGOCLOUD's social solutions help you build 1-on-1 and group video calls, live audio rooms, and social live streaming into your apps to help your users connect and have fun together.Starting Price: $0.59 per 1000 minutes -
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Iotum
iotum
Augment your offering by adding cloud-based voice and video solutions to your existing platform. Explore how iotum's out-of-the-box APIs and SDKs enable interactive engagements within your existing app, website, or platform. Strengthen your customer relationships by using the communication method they prefer. Engage with your audience in real-time, on any platform, from anywhere, through the addition of video and voice with iotum’s API and SDK solutions. Iotum utilizes the VP9-SVC codec, the latest in video technology that uses less bandwidth for the same top-notch video quality, and is able to maintain better video quality under poor internet conditions. Iotum has media servers distributed worldwide that use global low latency, ensuring all participants have crystal clear connections, no matter where they are. Iotum offers collaboration features such as annotation, whiteboards, laser pointer, and instant chat a-la-carte so that your developers don’t need to build in-house. -
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Digital Samba
Digital Samba
Founded in 2003, Digital Samba is a privacy-first video conferencing provider operating from within the European Union — home to the world's strongest data protection laws — and serving a global audience. Our solutions are designed with zero tracking, robust security, and long-term reliability at their core. We offer both a free, ready-to-use platform for meetings, education, webinars, training, and events, as well as Digital Samba Embedded, an API and SDK that enables organisations to integrate fully customisable, branded video conferencing directly into their own applications. Digital Samba combines minimalist design with powerful features, including HD video and audio, screen sharing, breakout rooms, interactive whiteboards, AI captions and summaries, polling, Q&A, and secure cloud recordings. For developers and enterprises, advanced options such as full white labelling, CNAME support, API control, and webhooks make deep integration seamless.Starting Price: €0.0026 -
46
Apidaze
Apidaze
Add real-time voice, video, messaging, and more into your VoIP, web, and mobile services. No CapEx. No contracts. Pay as you grow. 100% freedom to build what you want. Handle inbound or outbound calling seamlessly with Apidaze’s Voice APIs. There is no need for complex phone systems, or commitments with large carriers. Apidaze gives you access to phone numbers in more than 8,000 cities in 60 different countries. Create simple IVRs without the need for a phone system. Play a welcome message to the caller and route the call to different people depending on the caller’s input. With 6,000,000,000 SMS being sent each day in the US, SMS has quickly become an important communication medium to keep in touch with your customers. -
47
ApiRTC
Apizee
ApiRTC is a library which allows a developer to easily integrate real-time communications (chat, audio, video) into a web or mobile application. Behind the scenes, the WebRTC technology is used . This means that the media flows are encrypted and exchanged in peer-to-peer when possible. Otherwise a media relay (TURN server) may be required. ApiRTC is the entry point of our platform that will manage all connection establishments for you including user connection, user presence and media establishment. ApiRTC library is available in different format depending of the integration you need; be it for web and hybrid applications based on Javascript or native applications for iOS and Android. For audio and video communications, Apizee solutions are based on the WebRTC standard. The compatibility of Internet browsers with this technology is growing rapidly and this choice now allows the availability of our audio/video streaming solutions in most PC, tablet and smartphone environments.Starting Price: $71 per month -
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UIB
UIB
UIB is an AI-native, API-first company that simplifies human-to-machine communications, making them as natural as human-to-human interactions. Their platform seamlessly connects various communication channels, AI platforms, and connectors, including SaaS and IoT APIs, providing an infinitely scalable solution that reduces the complexity of bringing products to market. UIB's offerings include the UnificationEngine, an omnichannel Messaging Service Platform (MSP) that provides access to communication services via a single, unified API with over 50 connectors; Unified AI, a white-label conversational AI chatbot builder and virtual assistant designer that supports content management and conversation analysis in any language and media; and H2X Exchange, a marketplace for cloud connectors, RPA, and IoT integrations, enabling 360° interactions across all conversational user interfaces. -
49
Sent
Sent, Inc.
Sent is a unified API for sending A2P messages across SMS and apps like WhatsApp and iMessage. The platform instantly identifies and delivers messages to a contact's primary messaging channel — optimizing delivery to offer seamless global reach and reduce the cost of business messaging by 80-90% compared to traditional solutions. -
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Sunshine Conversations
Zendesk
The messaging platform for conversational business. Sunshine Conversations lets you unify messages from every channel into a single conversation, and build interactive messaging experiences anywhere. The way we communicate has fundamentally changed. With more than 5 billion accounts worldwide, messaging apps like Facebook Messenger, WhatsApp, and WeChat have made it easy to connect in a more personal way with friends and family from anywhere in the world. Businesses already know they need to be where their customers are. But with the growing number of channels and constantly changing technology, it’s become harder than ever to manage conversations across channels. With the rise of bots, AI, and interactivity in messaging, these channels are quickly evolving from places we chat to places where we do business.Starting Price: $145 per month
