Ably Chat

What it does

Ship chat that actually scales. Ably Chat gives developers a purpose-built API for adding realtime messaging to any app - livestreams, in-game comms, customer support, or group chat. SDKs for JS, React, Swift, and Kotlin. Features include typing indicators, presence, reactions, message edit/delete, read receipts, UI kits, and moderation. Built on infrastructure trusted by HubSpot and 17Live, with guaranteed message ordering, 99.999% uptime, and a global edge network. Scale with confidence.

Build custom chat applications, with chat APIs and SDKs your team will love, on a platform you can trust.

Build chat applications, with chat APIs and SDKs your team will love, on a platform you can trust. With AI Transport users can stop, start and switch, but the session persists. Build any chat experience, at any scale, with Ably Chat. Effortlessly handle conversations whether they are one:one or many:many. Enable realtime interaction alongside streaming content. Handle millions of concurrent users chatting and reacting with a simple chat API. Customer service chat Streamline live one:one support chat - whether it's customer service, tech support, patient care, or student help. Roll-out globally without fear of service disruption. Community in-app chat Keep users on platform and engaged with…from ably.com

In the maker’s words, at launch

Hey HN, Staff Engineer at Ably here. Over the past few months I've been speaking to engineers building AI assistants, copilots, and agentic workflows (over 40 companies at this point), with particular focus on cloud-hosted agents. I expected the hard problems to be in model selection, prompt engineering, and…

• 
  Stream Chat2019 · getstream.io · ▲327

  Build, code and ship in app messaging in a few hours

• 
  AgentSea2025 · agentsea.com · ▲439

  Today we’re excited to introduce AgentSea, a private AI chat built for sensitive work. When you use closed-source AI models, your data can: – be stored – pulled into training pipelines – shared with third parties That might be fine if you’re making memes or drafting LinkedIn posts. But it becomes a serious risk when you’re pasting contracts, health info, financial data, or business secrets. That’s why we built AgentSea. In Secure Mode, all chats run on open-source models or models hosted on our own servers. Your data never leaves, is never used for training, and is never leaked. Agentsea…

• 
  Bridgely2025 · ▲183

  The fastest way to chat in 60+ languages across web & apps

• 
  Chatfully2021 · trychatfully.com · ▲145

  All-in-one chat tool for teams: texting, web chat, & more

• 
  Gaming Chat SDK by CometChatJul 2026 · cometchat.com · ▲98

  Chat drops into Unreal like it was always there

• 
  Bindly2016 · bind.ly · ▲76

  Hi HN, I’m a product designer by background, not a traditional software engineer. Over the last year, tools like Claude and ChatGPT completely changed how I work. I started with small internal tools, and now I’m “vibe coding” multiple highly personalized apps. As I iterated between Claude Code (implementation) and ChatGPT (ideation / thinking), I kept running into the same problem. To think clearly, I had to repeatedly re-explain: - what the code currently does, - what changed recently, - and why certain decisions were made. That re-summarization step became a real bottleneck. So I…

• 
  /dev/null▲484

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• 
  Brila▲1,364

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

• AG
  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

• 
  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

• 
  Fathom 3.0▲800

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

• 
  Brutalist Concrete Laptop Stand (2024)▲786

  I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay

  Life & fun · Apr 2026 · sam-burns.com

• 
  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app