Life & fun · alternatives · 2026
24 alternatives to Mats3 messaging is better than HTTP/REST
Message-based Interservice Communication made easy! Naturally resilient and highly available microservices, with great DevX and OpsX
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Mats3 messaging is better than HTTP/REST launched in 2022; newer entries below may have overtaken it.
- 1

Mats3: Message-based Asynchronous Transactional Staged Stateless Services - centiservice/mats3
2021 · github.com · its alternatives →
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Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬 - chatwoot/chatwoot
2019 · github.com · its alternatives →
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Sendbird 3.0▲319Fully customizable chat, voice & video APIs for your app 🐦
2017 · sendbird.com · its alternatives →
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Monoliths and microservices
2016 · soundcloud.com · its alternatives →
- 8

Client library for Minimal Chat. Contribute to minimalchat/client development by creating an account on GitHub.
2017 · github.com · its alternatives →
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Ably Chat▲73Hey 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 orchestration. Instead, the same infrastructure challenges kept coming up: realtime sync between agents and end clients is surprisingly painful to get right. - Managing and scaling WebSocket or SSE connections between agents and clients - Buffering messages server-side and implementing…
Apr 2026 · ably.com · its alternatives →
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A small, open-source alternative to Slack
2017 · totaljs.com · its alternatives →
- 13

Real-time task management meets real-time communication
2015 · blog.hiveflux.com · its alternatives →
- 14

I can't tell if HN is the right kind of place for this stuff anymore since people are so advanced in their use but I thought it was interesting to leverage my existing Go microservices framework and turn it into the core of what would provide tools for an agent cli or whatever beyond that. Extensibility is key. Thought I'd share and get a conversation going.
2020 · go-micro.dev · its alternatives →
- 15

Deliver rich, modern & automated conversational experiences
2020 · support.zendesk.com · its alternatives →
- 16
Ember▲83Launch a web3 landing page & messaging community in minutes.
2022 · ember.social · its alternatives →
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Hi HN, I built a location-based chatroom with Discord-like servers. This started as a portfolio project to learn WebSockets but has spiraled into something else entirely. There are two features right now: Drop - Single chatrooms that can only be seen within a specified radius and only last for a time less than 48 hours chosen by the user. Hubs - Geofenced servers modeled after Discord. These are not time restricted. They can be created by anyone and the creator becomes the admin able to add channels and set rules. When a user enters the location’s area, they can join the hub and continue…
Nov 2025 · vicinity.social · its alternatives →
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2012 · gaglers.com · its alternatives →
- 22

Empower your product manager. Let them decide what the messages to your users say, when those messages are triggered, as well as how they are sent (sms, email, etc.) while you focus on building product features. They'll be able to use trusted providers like sendgrid, twilio and apple so you don't have to worry about message delivery.
2013 · outbound.io · its alternatives →
- 23

Hi everyone! I’m Arvid, cofounder of Anysphere (https://anysphere.co). With my two friends Sualeh and Shengtong I have been spending the last few months building a dedicated home for important, long-form conversations. We’re super excited to let the HN community test it out! We think that no existing platform for point–to-point communication prioritizes the conversations that you actually care about and that really matter. Instant messaging is filled with careless texts and stickers, email is filled with receipts and spammers, and physical mail, while better in those respects, is…
2022 · gist.github.com · its alternatives →
- 24

a minimalist toolkit for building scalable, fault tolerant and eventually-consistent microservices - dot-microservices/dot-rest
2019 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →