Knock data sources

What it does

Knock data sources enable you to ingest event data from any tool to trigger messaging in a few clicks—no code required. Connect pre-built sources like Stripe, Clerk, Supabase, PostHog, and WorkOS, or map any custom webhook to workflows, audiences, and user updates in a few clicks. Knock handles verification, transformation, and action mapping so you can launch lifecycle and transactional messaging faster.

Knock is customer engagement infrastructure for your product, marketing, and transactional messaging. Activate your data, ship cross-channel messaging, and accelerate growth.

Flexible, AI-native tooling to build any messaging experience you want, without compromising on design, performance, or user experience. Flexible, AI-native tooling to build any messaging experience you want, without compromising on design, performance, or user experience. Never build an email again. Generate beautiful, client-safe emails in your layout and branding. User-first controls. Respect user time with preference centers and send windows. Never build an email again. Generate beautiful, client-safe emails in your layout and branding. User-first controls. Respect user time with preference centers and send windows. Ship paywalls, dialogs, and nudges powered by your components. Enable…from knock.app

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  Knock2022 · knock.app · ▲342

  Notification infrastructure for developers

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  Knock agent for SlackJun 2026 · knock.app · ▲112

  Build, manage, and ship customer messaging from Slack

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  Knock-Knock.net – Visualizing the bots knocking on my server's doorFeb 2026 · knock-knock.net · ▲224

  Knock-Knock.net is a live honeypot dashboard showing real-time bot attacks by protocol, source country, ISP, username, password, and IP across SSH, Telnet, FTP, RDP, SMB, SIP, HTTP, and SMTP services.

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  KnockMar 2026 · tryknock.app · ▲168

  Knock-Knock.net is a live honeypot dashboard showing real-time bot attacks by protocol, source country, ISP, username, password, and IP across SSH, Telnet, FTP, RDP, SMB, SIP, HTTP, and SMTP services.

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  Knock CLI2023 · knock.app · ▲104

  Bring your notification infrastructure to your fingertips

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  Email API benchmarksMar 2026 · knock.app · ▲113

  Hey HN, I'm Chris, CTO of Knock (https://knock.app). We built email.info because every developer we talk to asks the same question: which email provider should I use? The existing resources are mostly vibes — "Best of" listicles, anonymous Reddit threads, or LLM answers trained on that same content. Objective performance data is always missing. Knock is a notification infrastructure platform, so we send billions of API requests to downstream email providers every year. We aggregated that data into a public dashboard covering 10 providers (SendGrid, Postmark, Resend, Mailgun, Amazon…

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  /dev/null▲481

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

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

  Dev tools · 27d ago · github.com

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

  Dev tools · 25d ago · github.com

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

  Dev tools · 22d ago · openbot.run

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  Talanoa▲341

  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

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  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

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  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

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  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

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  Fathom 3.0▲800

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

  AI · Apr 2026 · fathom.ai

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  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

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  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