Best Chat SDK & API Software for Slack
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Compare the Top Chat SDK & API Software that integrates with Slack as of September 2026
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This a list of Chat SDK & API software that integrates with Slack. Use the filters on the left to add additional filters for products that have integrations with Slack. View the products that work with Slack in the table below.
What is Chat SDK & API Software for Slack?
Chat SDK and API providers offer tools and services that enable developers to integrate real-time chat functionality into applications. These solutions typically provide pre-built components like chat interfaces, messaging systems, and notifications, reducing the need for custom development. Providers often offer APIs that allow seamless interaction with chat services, such as sending and receiving messages, managing user profiles, and customizing chat experiences. SDKs, on the other hand, often come with libraries and documentation to help developers quickly build and deploy chat features on mobile or web platforms. Some popular chat SDK & API providers also include advanced features like video calling, chatbots, and analytics for enhanced communication experiences. Compare and read user reviews of the best Chat SDK & API software for Slack currently available using the table below. This list is updated regularly.
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1
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.Starting Price: $0.0085 per min -
2
PubNub
PubNub
Innovate with Realtime Features: We take care of realtime communication infrastructure so you can focus on your app. Our Platform for Realtime Communication: A platform to build and operate real-time interactivity for web, mobile, AI/ML, IoT, and Edge computing applications Faster & Easier Deployments: SDK support for 50+ mobile, web, server, and IoT environments (PubNub and community supported) and more than 65 pre-built integrations with external and third-party APIs to give developers the features they need regardless of programming language or tech stack. Scalability: The industry’s most scalable platform capable of supporting millions of concurrent users and allows for rapid growth with low latency, high uptime, and without financial penalties. Security & Compliance: Enterprise-grade security and compliance with the most stringent regulations worldwide, including GDPR, SOC 2, HIPAA, ISO 27001, and CCPA.Starting Price: $0 -
3
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 -
4
Kloudless
Kloudless
SaaS App Integrations Made Fast and Easy. Kloudless is an API integration platform that unifies endpoints and data models across many SaaS APIs so that you can code just once and instantly integrate your app with many SaaS providers. We figured out the ins and outs of 150+ APIs so you don’t have to. We learned how to talk to and maintain over 150+ APIs so that you don't have to. Partner with us to help your app integrate with any SaaS app that your customers want. Our Unified APIs unify endpoints and data models across many SaaS APIs so that you can code once and integrate many. Our Unified APIs abstract away the differences between many SaaS APIs, making it simple to build integrations quickly get new features to market. We offer extra features like real-time activity monitoring and pre-built tools like the File Picker and Crawler that the SaaS provider doesn’t even offer. -
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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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