Show HN: Tree-walk interpreter (and formatter) written in C https://ift.tt/sLRglXx

Show HN: Tree-walk interpreter (and formatter) written in C Hello HN, this is my first "completed" project since I took on this coding journey. Vern is a statically typed scripting language with lots of rough edges. You can try it out at https://vern.cal31.dev You can find the source code and some documentation at https://ift.tt/NM3s9PV https://ift.tt/NM3s9PV May 8, 2025 at 10:30PM

Show HN: Limits.fyi – See what you are getting out of all your AI subscriptions https://ift.tt/6eZKXif

Show HN: Limits.fyi – See what you are getting out of all your AI subscriptions Hey HN, I've personally been having a hard time keeping track of all the changes to AI subscriptions these days. Sama is always tweeting about ChatGPT usage limits being improved as they add more GPUs, nobody knows how many Claude messages you get in a day, and Windsurf just recently updated their pricing plan. It's becoming increasingly difficult to get a clear and transparent view of what you're actually getting with each subscription. This becomes especially frustrating when you run into those annoying “no more remaining message” popups right in the middle of a coding session. I've also noticed many developers suffer from what I've started calling "query anxiety”, this is when a person is always worried about hitting their usage limits, so they just end up not using these models when they actually need them. That's why I created limits.fyi which lets you view and compare usage limits for all the popular AI subscriptions in one place. You can: - See exactly what usage limits come with each plan - Filter by specific models to find which subscriptions give you access - Compare prices to find the best value for your needs - Discover new services you might not have known about I try and keep the data up-to-date, and welcome user submissions. If you notice changes or have new information, you are encouraged to contribute using the submission feature at the bottom of the page. Check it out here: https://www.limits.fyi/ I'd love to hear your thoughts and suggestions on how to make this more useful. https://www.limits.fyi/ May 9, 2025 at 12:08AM

Show HN: Picostrap5 A free bootstrap-based WordPress theme on GitHub https://ift.tt/39v51AI

Show HN: Picostrap5 A free bootstrap-based WordPress theme on GitHub https://ift.tt/1hoUiYF May 8, 2025 at 02:22AM

Show HN: I vibe-coded Product Hunt, but for Videos https://ift.tt/igPyZQp

Show HN: I vibe-coded Product Hunt, but for Videos https://tubehunt.co May 8, 2025 at 01:34AM

Show HN: Cloi – free local debugging agent in your terminal https://ift.tt/ozT8BJm

Show HN: Cloi – free local debugging agent in your terminal Hey everyone! For the past two weeks my friend and I have been heads-down building Cloi, a fully local debugging agent that runs right in your terminal. You probably know the drill—every AI coding tool asks for API keys, subscriptions, and uploads your entire codebase to the cloud. Cloi does none of that: it runs entirely on your machine, with no cloud, no API keys, no subscriptions, and zero data leaving your system. What Cloi does: - Contextual error capture: Grabs your stack trace, local files, and environment to understand the issue. - Local LLM inference: Spins up Ollama on your box and generates targeted fixes—no external servers. - Safe patch application: Presents you with diffs and only applies changes when you explicitly approve. - Model‐agnostic: Ships with Phi-4 out of the box (surprisingly capable for its size!), but you can swap in any Ollama model you’ve installed. Why we built it: - Maintain full control over your code and data—ideal for security-sensitive projects - Avoid recurring subscription fees and cloud vendor lock-in - Keep your development flow entirely offline when you need it Highlights: We hit 202 stars in just 5 days, which tells us we're not the only ones who wanted this! Cloi is plug-and-play (just install and run), and we designed it to be completely unopinionated, meaning you can you whatever Ollama model you want. Get it now: npm install -g @cloi-ai/cloi If you find Cloi useful, we’d really appreciate a star on GitHub. Try it out, let us know what you think, and happy debugging! — Gabriel Cha & Mingyou Kim https://ift.tt/Rs2lPyh May 7, 2025 at 10:55PM

Show HN: Free web "Form Builder" (TypeForm for free) https://ift.tt/INfib93

Show HN: Free web "Form Builder" (TypeForm for free) I just built and launched a free web form builder similar to TypeForm. Feel free to check it out, its Free to use, just need to sign up so that your forms can be organized. More advanced features coming soon. https://ift.tt/CsDNm2Y May 7, 2025 at 03:14AM

Show HN: X402 – an open standard for internet native payments https://ift.tt/mfjK3Nu

Show HN: X402 – an open standard for internet native payments Hi HN – excited to announce x402, initially developed by Coinbase (YC 12) x402 lets any HTTP API charge per request without issuing API keys or storing credit cards. Buyers (humans or AI agents) keep funds in their own wallet and dynamically discover compatible endpoints, call them as usual, and automatically pay a microtransaction in USDC or other tokens to settle. 90 second demo: https://www.youtube.com/watch?v=PV-L2AfLhJg Problem: Every time we want to use a new API we have to: find the service online create a developer account, copy a secret key into env vars, pre-fund or hand over a credit card This flow blocks agents even more. They can’t solve CAPTCHAs or enter credit cards. It also hurts sellers: fraud, chargebacks, onboarding friction, and marketing to humans are huge pain points. Why buyers care Zero setup – Hit a new endpoint immediately. Runtime discovery – Because every x402 service exists in a common registry, an agent can search, compare, and invoke in one loop. Self-assembling agents become practical. Easily create proxy servers – Want an endpoint that isn’t supported? You can use our proxy server template to spin up an x402-compatible instance yourself using traditional API keys, and monetize it for others wanting access. Why sellers care Reach incremental demand – Long-tail bots, side projects, one-off scripts, all of which too small for an account/signup flow, can now pay you. Micropayments without fraud – All payments settle onchain, nothing for stolen credit cards or chargebacks to reverse. Embedded distribution – instead of marketing to humans, create a compelling service meeting demand for agents and watch the requests roll in. How we got here Last year we launched AgentKit (wallets for AI agents). Tens of thousands of agents now hold onchain balances, but they can’t pay for most web services. We revived the long-unused HTTP 402 (“Payment Required”) status code and wrote a spec to make it real. Marc Andresseen calls the lack of native value transfer “the original sin of the internet,” and we see x402 as the absolution of this sin. How it works: x402 specifies a standard response body to accompany a 402 status code. This response body contains machine understandable instructions for how to pay. Payments are signature based an included as an `X-PAYMENT` header in a subsequent request to the same API endpoint. The accepting server can verify and settle payment themselves, or delegate the onchain settlement to what we call a facilitator. This means you don't have to touch crypto as a developer, you can just integrate a middleware and start receiving stablecoin payments in as little as 1 line of code. Because x402 natively traverses your existing client / server requests, it can be implemented in any language, and doesn't require webhooks, or any other complex integration. Its literally this simple: `paymentMiddleware("0xYourAddress", {"/your-endpoint": "$0.01"})` Ask HN API providers – does the one-line integration fit your stack? What’s missing? Agent / infra builders – if a service isn’t available is the proxy server template sufficient? File issues, PRs welcome Everyone – poke holes in the trust and fee model; we’d love to iterate with your feedback Curious to learn more? Check out our documentation and repo for more information, and please don’t hesitate to reach out to get onboard. https://ift.tt/MVeSvHZ https://x402.org https://ift.tt/6iERQ20... https://www.x402.org/ May 6, 2025 at 11:54PM

Show HN: Korey – a product management agent for software teams https://ift.tt/LUsKuvW

Show HN: Korey – a product management agent for software teams https://korey.ai/ May 7, 2025 at 12:23AM

Show HN: Automate your workflows with screen recordings and AI agents https://ift.tt/Mx6QudR

Show HN: Automate your workflows with screen recordings and AI agents Hi all, There are tons of AI agent builders out there. But let’s be honest, for most people, they’re still hard to use. Every single day, I see people struggling to create workflows with these agents and posting their requirements on Upwork. So we built Nutix. Just upload your screen recording and that’s it. Nutix watches what you do, understands your workflow, and builds it with AI agents instantly. You'll have to authorize access to underlying application for agents runs. Access over 2500+ applications and build your automations on top of it. No prompts. No coding. Just show it once , and you're done. https://nutix.ai May 6, 2025 at 03:32AM

Show HN: Tired of bloated time trackers? Here's a dead-simple, free one I built https://ift.tt/lW3wPRh

Show HN: Tired of bloated time trackers? Here's a dead-simple, free one I built Hey HN! I made TimeAnt because my dad needed a simple way to track his time at work and he didn’t like the other apps out there because they were too complicated or had way too many features. So, I built an app that just does the basics: track work hours, meetings, breaks, lunch and optionally lets you add notes - and that's it. It’s totally free, works both online and offline, and doesn’t require an account (but you can create one if you want). The goal was to keep it super simple and let you focus on tracking time without all the fluff. It also gave me a chance to learn Swift and build my first native iOS app! I’d love to hear what you think! Best, Viktor https://ift.tt/PYHIX9n May 6, 2025 at 01:21AM

Declarative Tcl/Tk UI Library for Python https://ift.tt/pBFXMNI

Declarative Tcl/Tk UI Library for Python https://ift.tt/Ij2TCdR May 5, 2025 at 11:32PM

Show HN: ImagePuzzle – multiplayer picture puzzle game https://ift.tt/RAFI6ia

Show HN: ImagePuzzle – multiplayer picture puzzle game I made ImagePuzzle, a simple and fun browser game. Would love your thoughts! https://ift.tt/ziaRkF7 May 4, 2025 at 10:29PM

Show HN: Search Engine Selector – This is my default search engine now https://ift.tt/aq6gKEV

Show HN: Search Engine Selector – This is my default search engine now I built this to escape from the Google bubble. Instead of sticking with just one search engine, it nudges you to choose the most appropriate one for each query. https://ift.tt/BrLtRXG May 4, 2025 at 10:07PM

Show HN: Live Air Quality Monitor https://ift.tt/fazAZbU

Show HN: Live Air Quality Monitor A comprehensive indoor air quality monitoring system built with ESP32-C3 Super Mini and multiple environmental sensors. This project helps you monitor CO2, temperature, humidity, volatile organic compounds (VOCs), nitrogen oxides (NOx), and particulate matter (PM1.0, PM2.5, PM10) to maintain healthy air quality in your home or office. https://ift.tt/YohTp3H May 4, 2025 at 12:21AM

Show HN: Poopoo peepee Language – A vowel-based, programming language https://ift.tt/phI6Yrn

Show HN: Poopoo peepee Language – A vowel-based, programming language A language consisting strictly of the letter p separated by vowels. Originally dreamed up for April Fools’, I’m now planning to put it through its paces in this year’s Advent of Code. https://ift.tt/KFmTLRJ May 3, 2025 at 08:08PM

Show HN: Kinematic Hand Skeleton Optimization in Jax https://ift.tt/lu1IwGU

Show HN: Kinematic Hand Skeleton Optimization in Jax I've been trying to wrap my head around fwd/bwd kinematics for imitation learning, so I built a fully‑differentiable kinematic hand skeleton in JAX and visualized it with reruns new callback system in a Jupyter Notebook. This shows each joint angle and how it impacts the kinematic skeleton. https://ift.tt/hfOoCZM May 3, 2025 at 02:33AM

Show HN: Traycer.ai – Turn GitHub Issues into a Step-by-Step Plan https://ift.tt/tQRxfrL

Show HN: Traycer.ai – Turn GitHub Issues into a Step-by-Step Plan Hey everyone! We've built Traycer, a tool that transforms your GitHub issues—everything from descriptions and attached images to ongoing conversations—into clear, actionable implementation plans. You can easily import these plans into your IDE with our extension or use them with any other coding assistant you prefer. We'd love to hear your thoughts and feedback. Traycer is totally free for open-source projects, and we've got a 2-week free trial if you're working with private repos. Give it a try and let us know what you think! https://ift.tt/2qVE9el May 3, 2025 at 01:56AM

Show HN: Polyseed – first(?) pq PAKE implementation https://ift.tt/YKqV3Uo

Show HN: Polyseed – first(?) pq PAKE implementation https://ift.tt/5DF4IOc May 2, 2025 at 09:10PM

Show HN: I built a synthesizer based on 3D physics and launched the product https://ift.tt/ALgGhtT

Show HN: I built a synthesizer based on 3D physics and launched the product I've been working on the Anukari 3D Physics Synthesizer for a little over two years now. It's one of the earliest virtual instruments to rely on the GPU for audio processing, which has been incredibly challenging and fun. In the end, predictably, the GUI for manipulating the 3D system actually ended up being a lot more work than the physics simulation. So far I am only selling it direct on my website, which seems to be working well. I hope to turn it into a sustainable business, and ideally I'd have enough revenue to hire folks to help with it. So far it's been 99% a solo project, with (awesome) contractors brought in for some of the stuff that I'm bad at, like the 3D models and making instrument presets/videos. The official launch announcement video is here: https://www.youtube.com/watch?v=NYX_eeNVIEU But if you REALLY want to see what it can do, check out what Mick Cormick did with in on the first day: https://ift.tt/vM3POlU I've kept a fairly detailed developer log about my progress on the project since October 2023, which might be of interest to the hardcore technical folks here: https://ift.tt/Ufe1bxu I also gave a talk at Audio Developer Conference 2023 (ADC23) that goes deep into a couple of the problems I solved for Anukari: https://www.youtube.com/watch?v=lb8b1SYy73Q https://anukari.com May 2, 2025 at 11:42PM

Show HN: HN top 30 summarized by Gemini 2.5 Pro https://ift.tt/YZ1WBuq

Show HN: HN top 30 summarized by Gemini 2.5 Pro Fun little project, had Gemini 2.5 Pro summarize HN's top 30 each hour, both the stories and comment sections. Pretty impressed with Gemini 2.5. It's probably the first model other than Claude 3.7 Sonnet where I actually find the output readable. I normally use 3.7 Sonnet for coding, but used Gemini for the codegen on this one as well. Was pretty impressed! Using Cursor, it seemed to instruction-follow better than Claude generally does, and remain lucid during very long agent sessions. Thanks for your feedback! https://ift.tt/16IGog4 May 2, 2025 at 01:42AM