Echo

What it does

Echo is the business layer for micro‑apps: authenticate users, route & meter AI calls, and charge per call in ~5 lines. You set the markup; Echo handles payments, taxes, and receipts. Monetize AI apps in minutes and turn inference into income.

User Pays AI SDK

Change 5 lines from the Vercel AI SDK and you're production ready. No API keys. No metering. No Stripe. When once you set a markup, every token your users consume on your app is instant revenue. Your Echo balance is shared across all Echo-powered apps. Pay once, usefrom echo.merit.systems

• 
  Echo2024 · echonotes.ai · ▲192

  Hi everyone - My cofounder, Reuben, and I have been working on Echo, a voice & text, mobile-first, note-taking app that uses GPT-4o to organize your thoughts and bring them to life. Download here: https://apps.apple.com/us/app/echo-ai-notes/id6503351019 How Echo works: 1. Write or record notes. We recommend going for a walk and just rambling. Echo works well with unstructured thoughts. 2. Echo automatically organizes your notes into topics. 3. You can ask Echo questions, and it will use your notes to generate a response. We launched in the App Store on Sep 3.…

• 
  EchoHQ2023 · ▲112

  Redefining customer care, 24/7

• 
  Economy of Hours2015 · economyofhours.com · ▲77

  Echo is an Economy of Hours: a marketplace without the money

• 
  Echo2025 · caard.net · ▲8

  AI Crypto Mining

• 
  Echosnap AiNov 2025 · useechosnap.com · ▲62

  Hi everyone, I’m a solo developer and I’ve been working on a small tool called Echosnap AI. I built it because I often get ideas while I’m walking or doing something else, and speaking always felt like the fastest way to capture them. Echosnap lets you record a note and instantly get a clean transcript. It can also translate your recordings and help you stay organized with tags and folders. I tried to keep the app as simple and minimal as possible. This is my first time sharing something on HN, so any feedback or suggestions would mean a lot. Thanks for taking a moment to check it out.

• EA
  EchoStream – A Local AI Agent That Lives on Your iPhone2025 · ▲22

  Hi HN, I’ve been working on a project called EchoStream, and I’d love to share it with you. As an AI startup founder, the first thing I do every morning is open Hacker News. I look for what other founders are building, check out new GitHub projects, and explore new products. But I started noticing that it was taking me the whole morning just to get through it all. I began to wonder: could an AI help me read Hacker News more efficiently? Could it summarize everything so I can quickly scan through, and then dive deeper into what interests me? And more than that—could it store what I’ve seen so…

• 
  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 18d ago · spira.ai

• 
  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 18d ago · rill.love

• 
  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 20d ago · tej.as

• 
  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 21d ago · stillwet.art

• 
  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 30d ago · world.pixverse.video

• 
  Beam.win▲378

  Run AI agents on one Mac and use its windows on another

  AI · 4d ago · beam.win

• 
  YouMind▲1,223

  The first AI creation studio where learning meets writing

  AI · 2025 · youmind.com

• 
  A store that generates products from anything you type in search▲1,184

  The site hit #1 on HN about a year ago. Got enough traffic that I turned it into a proper API. What's there: - REST API — 35k products, manually filterable by category, free key, 60 req/min - CLI — npx anycrap random -c food - faker.js plugin — bundled, no API call, works offline - HuggingFace dataset — full 35k rows for ML/training https://anycrap.shop/developers

  AI · 2025 · anycrap.shop

• 
  Term.everything – Run any GUI app in the terminal▲1,094

  I made a built-from scratch Wayland Compositor to display any GUI app* in the terminal! I think there is a lot of unexplored potential in custom Wayland compositors, a lot of really cool things you can embed existing applications into! So, I started with embedding apps into the terminal because that is the easiest input/output (output is just utf-8 and I use the great `chafa` library for that, and I just read from stdin for the input). If you have any other ideas for cool Wayland compositors, let me know. I purposedly wrote 80% the app in Typescript to appeal to the most developers and…

  Dev tools · 2025 · github.com

• IR
  I recreated Windows XP as my portfolio▲1,032

  Years ago I stumbled across a basic version of this concept and it stuck with me. I knew if I was ever going to take on such a project, it would need to be flawless, but without coding experience it was just another idea that would never happen. By the end of 2024, as AI coding tools exploded everywhere, I finally had a way to make it real. I started from zero knowledge and spent months collaborating with AI agents as a learning experience. Every pixel and every function went through me. The AI translated what I asked for into code, but every decision was human. I didn't use existing OS…

  AI · 2025 · mitchivin.com

• 
  Ada▲910

  Your own AI data analyst

  AI · 2025 · ada.im

• 
  VidAU - AI Video▲868

  Turn Product Images into Scroll-Stopping Video Ads

  Growth · 2025 · vidau.ai