Company Profile - Nexconn Instant Messaging Cloud

When Agents Join the Network: The Next Architecture for A2A Communication

Home > Blog > A2A Communication Architecture Build a messaging feature for people, and a lot of assumptions come for free. A person reads a message roughly in order. A person doesn't need a formal record of why they changed their mind mid-conversation. A person can be trusted with a read receipt and a typing indicator, and nobody's auditing the exact sequence of who saw what, when. None of those assumptions hold once one side of the conversation is an autonomous agent. An agent doe

Build, Self-Host, or Integrate: The Real Cost of Chat Infrastructure in 2026

Home > Blog > Build vs. Buy Chat Infrastructure When adding real-time chat to a modern product, engineering teams typically face a three-way decision: Build it from scratch, self-host an open-source server, or integrate a managed SDK. On paper, open-source platforms often look like the ideal compromise between the engineering overhead of building from scratch and the high costs of commercial SDKs. In production, however, self-hosting often combines the worst of both worlds: the oper

Free Chat SDK Feature Comparison 2026: What $0 Buys You

Home > Blog > Free Chat SDK Feature Comparison When evaluating a free chat SDK, engineering teams usually look at the user cap first. But the real bottleneck in production rarely starts with user volume—it starts with feature gating. Almost every $0 tier across the market quietly strips out the critical primitives required for a finished product: webhook automation, multi-device synchronization, push notification infrastructure, compliance audit logs, or scalable channel hierarchies

Build a Real-Time Flutter Chat App for Free (2026 Tutorial)

Home > Blog > Build a Flutter Chat App for Free Flutter makes it possible to build one product experience for iOS and Android, but a reliable chat feature still needs more than a message list and a WebSocket connection. Mobile networks change, apps move between foreground and background, users sign in on multiple devices, and missed messages must be synchronized after reconnecting. To support production-oriented integrations from day one, this tutorial uses the Nexconn Production-Re

Chat SDK Pricing in 2026: The Real Cost from 0 to 10K MAU

Home > Blog > Chat SDK Pricing in 2026 The number on a chat SDK's pricing page rarely tells the full story about what you'll pay in month eight. What actually determines your cost curve is the billing unit underneath it — MAU, transactions, concurrent connections, or a flat tier — and that unit is set before you sign up, not something you can renegotiate once your product starts growing. Nexconn sidesteps the question entirely for the first phase of growth by offering the full Chat

Build Real-Time Chat Across Web, iOS, Android, and Flutter with Nexconn

Home > Blog > Build Real-Time Chat Across Platforms Deploy production-grade in-app chat across Web, iOS, Android, and Flutter at $0 with our Free Multi-Platform Chat SDK (10K MAU). Adding a message input and a WebSocket is easy. Building chat that survives network changes, app restarts, offline periods, multiple devices, media uploads, unread state, group growth, and production traffic is a different problem. This guide shows the shortest practical path to real-time in-app chat wit

Free Chat API & Messaging SDK: Production-Ready with 10K MAU/mo

Home > Blog > Free Chat API & Messaging SDK You've probably already run the numbers on a few chat SDKs. The free tier looked promising until you got to the fine print — a few hundred users, a handful of concurrent connections, half the features locked behind a plan you weren't ready to pay for yet. And somewhere in the terms, a line you almost skipped past: for testing and development only. That line is the one that matters most, and it's the one most comparisons skip. Here's what w

Nexconn Chat Integration Skill: Build In-App Chat with AI

Home > Blog > Nexconn Chat Integration Skill Every chat integration starts the same way: several browser tabs, one for each platform's documentation, and an afternoon spent figuring out which parts of the sample code are current. Android uses Java or Kotlin. iOS uses Swift. Flutter uses Dart. Web uses JavaScript/Typescript. Because there's no unified logic across these platforms, developers end up writing the same functionality — connect, authenticate, send a message, render a conver

Scaling Unlimited Live Chat: Architecture, Consistent Hashing, and Notification-Pull

Home > Blog > Scaling Unlimited Live Chat Live streaming has a concurrency problem that most infrastructure wasn't designed to solve. When a major broadcast goes live — a national event, a product launch, a celebrity stream — viewer counts can spike from thousands to millions within minutes. Every one of those viewers expects to see the chat moving in real time. They want to send messages, receive reactions, and feel like they're part of something happening right now. Any lag, any d

How to Build Live Commerce Chat for Modern Marketplaces

Home > Blog > Live Commerce Chat for Modern Marketplaces A single marketplace interface hides three fundamentally different communication engines underneath. There's the live stream, where a host talks to thousands of viewers at once and every second of delay costs conversions. There's the community layer, where yesterday's viewer becomes tomorrow's repeat buyer through group chat. And there's support — the revenue-critical channel where a delayed response to "where's my order" turn

When Agents Join the Network: The Next Architecture for A2A Communication

Home > Blog > A2A Communication Architecture Build a messaging feature for people, and a lot of assumptions come for free. A person reads a message roughly in order. A person doesn't need a formal record of why they changed their mind mid-conversation. A person can be trusted with a read receipt and a typing indicator, and nobody's auditing the exact sequence of who saw what, when. None of those assumptions hold once one side of the conversation is an autonomous agent. An agent doe

Build, Self-Host, or Integrate: The Real Cost of Chat Infrastructure in 2026

Home > Blog > Build vs. Buy Chat Infrastructure When adding real-time chat to a modern product, engineering teams typically face a three-way decision: Build it from scratch, self-host an open-source server, or integrate a managed SDK. On paper, open-source platforms often look like the ideal compromise between the engineering overhead of building from scratch and the high costs of commercial SDKs. In production, however, self-hosting often combines the worst of both worlds: the oper

Free Chat SDK Feature Comparison 2026: What $0 Buys You

Home > Blog > Free Chat SDK Feature Comparison When evaluating a free chat SDK, engineering teams usually look at the user cap first. But the real bottleneck in production rarely starts with user volume—it starts with feature gating. Almost every $0 tier across the market quietly strips out the critical primitives required for a finished product: webhook automation, multi-device synchronization, push notification infrastructure, compliance audit logs, or scalable channel hierarchies

Build a Real-Time Flutter Chat App for Free (2026 Tutorial)

Home > Blog > Build a Flutter Chat App for Free Flutter makes it possible to build one product experience for iOS and Android, but a reliable chat feature still needs more than a message list and a WebSocket connection. Mobile networks change, apps move between foreground and background, users sign in on multiple devices, and missed messages must be synchronized after reconnecting. To support production-oriented integrations from day one, this tutorial uses the Nexconn Production-Re

Chat SDK Pricing in 2026: The Real Cost from 0 to 10K MAU

Home > Blog > Chat SDK Pricing in 2026 The number on a chat SDK's pricing page rarely tells the full story about what you'll pay in month eight. What actually determines your cost curve is the billing unit underneath it — MAU, transactions, concurrent connections, or a flat tier — and that unit is set before you sign up, not something you can renegotiate once your product starts growing. Nexconn sidesteps the question entirely for the first phase of growth by offering the full Chat

Build Real-Time Chat Across Web, iOS, Android, and Flutter with Nexconn

Home > Blog > Build Real-Time Chat Across Platforms Deploy production-grade in-app chat across Web, iOS, Android, and Flutter at $0 with our Free Multi-Platform Chat SDK (10K MAU). Adding a message input and a WebSocket is easy. Building chat that survives network changes, app restarts, offline periods, multiple devices, media uploads, unread state, group growth, and production traffic is a different problem. This guide shows the shortest practical path to real-time in-app chat wit

Free Chat API & Messaging SDK: Production-Ready with 10K MAU/mo

Home > Blog > Free Chat API & Messaging SDK You've probably already run the numbers on a few chat SDKs. The free tier looked promising until you got to the fine print — a few hundred users, a handful of concurrent connections, half the features locked behind a plan you weren't ready to pay for yet. And somewhere in the terms, a line you almost skipped past: for testing and development only. That line is the one that matters most, and it's the one most comparisons skip. Here's what w

Nexconn Chat Integration Skill: Build In-App Chat with AI

Home > Blog > Nexconn Chat Integration Skill Every chat integration starts the same way: several browser tabs, one for each platform's documentation, and an afternoon spent figuring out which parts of the sample code are current. Android uses Java or Kotlin. iOS uses Swift. Flutter uses Dart. Web uses JavaScript/Typescript. Because there's no unified logic across these platforms, developers end up writing the same functionality — connect, authenticate, send a message, render a conver

Scaling Unlimited Live Chat: Architecture, Consistent Hashing, and Notification-Pull

Home > Blog > Scaling Unlimited Live Chat Live streaming has a concurrency problem that most infrastructure wasn't designed to solve. When a major broadcast goes live — a national event, a product launch, a celebrity stream — viewer counts can spike from thousands to millions within minutes. Every one of those viewers expects to see the chat moving in real time. They want to send messages, receive reactions, and feel like they're part of something happening right now. Any lag, any d

How to Build Live Commerce Chat for Modern Marketplaces

Home > Blog > Live Commerce Chat for Modern Marketplaces A single marketplace interface hides three fundamentally different communication engines underneath. There's the live stream, where a host talks to thousands of viewers at once and every second of delay costs conversions. There's the community layer, where yesterday's viewer becomes tomorrow's repeat buyer through group chat. And there's support — the revenue-critical channel where a delayed response to "where's my order" turn

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