Show HN: MCP-Cloud – One-click hosting for MCP servers (50 templates) https://ift.tt/SotdEBx

Show HN: MCP-Cloud – One-click hosting for MCP servers (50 templates) https://mcp-cloud.ai/ June 6, 2025 at 01:47AM

Show HN: Create LLM graders and run evals in JavaScript with one file https://ift.tt/0knyjTt

Show HN: Create LLM graders and run evals in JavaScript with one file Hi HN! Run it: OPENROUTER_API_KEY="sk" npx bff-eval --demo We built a tool to help people take LLM outputs and easily grade them / eval them to know how good an assistant response is. We've built a number of LLM apps, and while we could ship decent tech demos, we were disappointed with how they'd perform over time. We worked with a few companies who had the same problem, and found out scientifically building prompts and evals is far from a solved problem... writing these things feels more like directing a play than coding. Inspired by Anthropic's constitutional ai concepts, and amazing software like DSPy, we're setting out to make fine tuning prompts, not models, the default approach to improving quality using actual metrics and structured debugging techniques. Our approach is pretty simple: you feed it a JSONL file with inputs and outputs, pick the models you want to test against (via OpenRouter), and then use an LLM-as-grader file in JS that figures out how well your outputs match the original queries. If you're starting from scratch, we've found TDD is a great approach to prompt creation... start by asking an LLM to generate synthetic data, then you be the first judge creating scores, then create a grader and continue to refine it till its scores match your ground truth scores. If you’re building LLM apps and care about reliability, I hope this will be useful! Would love any feedback. The team and I are lurking here all day and happy to chat. Or hit me up directly on Whatsapp: +1 (646) 670-1291 We have a lot bigger plans long-term, but we wanted to start with this simple (and hopefully useful!) tool. Run it: OPENROUTER_API_KEY="sk" npx bff-eval --demo https://ift.tt/QDwMlVI June 5, 2025 at 09:50PM

Show HN: Magix – Chrome extension to add any feature to any website https://ift.tt/pAgtoj9

Show HN: Magix – Chrome extension to add any feature to any website Hey guys! I'm Kishan, I built this chrome extension that lets you add any feature to any website I asked it to do these: a text transcription button(which used deepgram) to lovable using this extension. an auto scrolled for every 5 sec in medium. dark mode to stripe dashboard. Yea did quite a lot. But i wanna know how it works for others and if its truly useful by any chance. So guys feel free to use it. My last show hn post was a flop so decided to try it again after returning from bathroom, so yeah Thx :) and if u run out of credits just let me know, i'll get u sorted -> https://ift.tt/saML08t https://trymagix.com/ June 5, 2025 at 01:24AM

Show HN: Smart Palette – Reimagining AI Art https://ift.tt/HPtOhFQ

Show HN: Smart Palette – Reimagining AI Art Hi HN, I'm Nick. Over the last 6 months I’ve been building Smart Palette – a platform to help anyone create unique, wall-ready art without needing to be a prompt expert. I started this because I wanted to unleash creativity in anyone and help them bring their art ideas onto their wall through a simple, guided and inspiring process. Instead of figuring out the “right” words to use, you just select your interior design style, room, art style, theme, and color palette. You can simply describe what you want to see and add your desired colors — or let Smart Palette handle it for you. Smart Palette uses a streamlined UI that my backend then translates into optimized, detailed prompts. A lot of the work went into this "translation" layer to ensure optimal model selection, settings and generation techniques depending on the user’s creative context. It also has a full print-on-demand (UHD) integration including various cusotmization options and an art preview feature. This is an early version, and I'd be very grateful for any feedback you have on the concept, the UX, or any technical aspects. Happy to answer any questions! You can try it out with a free trial and generate your first artwork. Here’s a quick walkthrough: https://ift.tt/k1xzdOK?... https://ift.tt/kG1A2jo June 5, 2025 at 12:58AM

Show HN: Cloudflare Workers Compatible MCP Boilerplate with OAuth & PostgreSQL https://ift.tt/3wp5y7i

Show HN: Cloudflare Workers Compatible MCP Boilerplate with OAuth & PostgreSQL https://ift.tt/MgfTRd8 June 5, 2025 at 12:26AM

Show HN: I'm Building Ahrefs for AI Search Results https://ift.tt/nwHq6SK

Show HN: I'm Building Ahrefs for AI Search Results AI search results are quickly becoming more important than SEO, but as businesses, we have no visibility over it! That's why I'm building "Ahrefs for AI search results". Track keyword performance on AI tools like ChatGPT, Claude, Perplexity & more https://linrush.com/ June 3, 2025 at 11:55PM

Show HN: pgarrow – A SQLAlchemy PostgreSQL dialect for ADBC https://ift.tt/M5EdkyX

Show HN: pgarrow – A SQLAlchemy PostgreSQL dialect for ADBC https://ift.tt/ZNFP5wa June 3, 2025 at 11:40PM

Show HN: I build one absurd web project every month https://ift.tt/KFgY1xD

Show HN: I build one absurd web project every month I’ve been building absurd, mostly useless web projects for fun — and I publish one every month at absurd.website. These are deliberately non-functional, weird, sometimes funny, sometimes philosophical — and usually totally unnecessary. Some examples: Sexy Math — solve math problems to reveal erotic images. Trip to Mars — a real-time simulation that takes 7 months to finish. Add Luck to Your e-Store — add a waving cat widget to boost your conversion via superstition. Microtasks for Meatbags — the future: AI gives prompts, humans execute. Invisible Lingerie — it’s sexy. And invisible. Artist Death Tracker — art prices spike when artists die. We track that. Open Celebrity — one open-source face, shared by all. Together we make her famous. I just enjoy exploring what the web can be when it doesn’t try to be “useful”. Would love to hear what you think — and absurd ideas are always welcome. https://absurd.website June 3, 2025 at 01:22AM

Show HN: GoogLLM – Google search that returns Markdown instead of HTML https://ift.tt/Y2NJZ3e

Show HN: GoogLLM – Google search that returns Markdown instead of HTML As part of my bigger goal to make the web more agent-friendly, this weekend i decided to tackle google. The "AI-native" search APIs like Tavily and Exa exist, but they require setup and don't actually use Google's results. So I built something simple - a proxy that takes Google search URLs and returns the results as clean markdown instead of HTML. You literally just change "google.com" to "googllm.com" in any search URL. ```bash # Returns 500KB of HTML: curl " https://ift.tt/9mkJwB0 " # Returns clean markdown: curl " https://ift.tt/K7pD4ei " ``` *What it does:* - Serves normal HTML to browsers (so humans can use it normally) - Returns markdown to everything else (curl, fetch, LLM agents) - Supports all Google search types: web, images, news, scholar, shopping, etc. - No auth needed for testing (10 requests/hour free) *Technical approach:* - Content negotiation based on Accept headers - Caches results to avoid hammering Google - Simple pricing: 0.5¢ per search after free tier I built this over a long weekend because I was tired of writing HTML parsers for every project. The whole thing is designed around a single principle: make Google search results consumable by LLMs without any complexity. *Questions for HN:* - Is this approach too simplistic? Should search APIs be more complex? - How do you currently handle search in your LLM applications? - Any concerns about the proxy approach vs. building from scratch? The llms.txt documentation is intentionally comprehensive (2500 tokens) so any LLM can understand and use it immediately. Live demo: https://googllm.com API docs: https://ift.tt/UeHYpdo Would love feedback on the approach and any edge cases I might have missed. https://googllm.com June 3, 2025 at 12:37AM

Show HN: Detect leaked asyncio tasks, threads, event loop blocks in Python https://ift.tt/zlQSW8L

Show HN: Detect leaked asyncio tasks, threads, event loop blocks in Python https://ift.tt/qUvk5Cr June 2, 2025 at 10:24PM

Show HN: MBCompass - Android Compass App https://ift.tt/oFRYALX

Show HN: MBCompass - Android Compass App Hey HN, I built MBCompass, a lightweight, privacy-friendly compass app for Android. It works fully offline, doesn’t ask for unnecessary permissions (no GPS, no internet), and is open source. Most compass apps out there are bloated or ad-heavy. I wanted something clean, fast, and featurish. So I made this! It’s only ~1.7 in size and uses a low-pass filter to smooth sensor readings. I’d love feedback or thoughts – especially from others building simple, privacy-first apps! https://ift.tt/tmN6oqI https://ift.tt/FqtBDvP https://ift.tt/FqtBDvP June 2, 2025 at 09:28AM

Show HN: I built an AI Agent that uses the iPhone https://ift.tt/WvXuin4

Show HN: I built an AI Agent that uses the iPhone It’s powered by OpenAI’s GPT 4.1 model. Uses Xcode UI tests + accessibility tree to look into apps, and performs swipes, taps, etc to get things done. https://ift.tt/Lc5Ftzr June 2, 2025 at 08:07AM

Show HN: Moon Phase Algorithms for C, Lua, Awk, JavaScript, etc. https://ift.tt/1ZykS69

Show HN: Moon Phase Algorithms for C, Lua, Awk, JavaScript, etc. https://ift.tt/JEH5Tst June 2, 2025 at 04:52AM

Show HN: You2Aanki – Turn Videos into Anki Vocabulary Flashcards https://ift.tt/dOjtKGi

Show HN: You2Aanki – Turn Videos into Anki Vocabulary Flashcards Hey HN, this is my first product launch. I built You2Anki along my language learning journey to aid my vocabulary from any content I want. Most tools I tried weren’t particularly made for language acquisition. You2Anki was designed with that focus in mind. Simple, intuitive and distraction-free. I hope it helps you! https://you2anki.com/ June 2, 2025 at 01:02AM

Show HN: AI in Email Conversations https://ift.tt/w6m3gVH

Show HN: AI in Email Conversations https://subjam.com/ May 28, 2025 at 10:27PM

Show HN: Purpose Reminders – One simple, positive act emailed monthly to all https://ift.tt/ozsEjdt

Show HN: Purpose Reminders – One simple, positive act emailed monthly to all Hi HN, I built Purpose Reminders ( https://ift.tt/wxOp0Mj ). Our first monthly action – "Leave a positive review for a local business" – goes out June 1st (very soon!). The core idea: What if thousands of us did the same small, positive act each month? You get one email, choose to act or skip (no pressure), and then see the collective, anonymous impact. It's 100% free, built with Next.js/Supabase/Resend. My attempt at a simple way to foster some collective goodwill. What do you think of the concept? https://ift.tt/wxOp0Mj June 1, 2025 at 03:21AM

Show HN: SoloDB – A document database build on top of SQLite with JSONB https://ift.tt/rMsIeTg

Show HN: SoloDB – A document database build on top of SQLite with JSONB https://ift.tt/ZnjoFIq May 31, 2025 at 11:09PM

Show HN: A site for YC rejection stories https://ift.tt/RaxSPOo

Show HN: A site for YC rejection stories Got rejected from YC a few times, so I built a site to collect lessons, reflections, and what people would do differently next time. Thought it could be helpful since most founders apply more than once anyway :) Hope it's helpful: https://ift.tt/DVi2ljP https://ift.tt/DVi2ljP June 1, 2025 at 12:45AM

Show HN: Changefly – Rebuilding the foundation of privacy and authentication https://ift.tt/qkZ4biR

Show HN: Changefly – Rebuilding the foundation of privacy and authentication Lukas here, founder of Changefly. For those of you who might remember neworder.box.sk and astalavista.box.sk, I was one of the admin's at a very young age. Fast forward to 2018, I set out to help people regain their privacy. Google invited us into the Google Cloud Startup program which led to the creation of Changefly. After years of truly challenging work and thousands of iterations, Changefly ID was born. Changefly ID solves the problem both users and companies face on a daily basis... spam, scams, bots, account takeover attacks. At face value it looks like an ordinary code, but in fact, it is an encrypted security code that only the user knows and has access to use (a distributed anonymous authentication code). Changefly ID has a lot of flexibility -- replace traditional authentication (which you absolutely should do) or use secondary for multi-factor authentication (a good stepping-stone). It also includes end-to-end communications with your users through Changefly (not email, sms, or other unsecured channels). Additionally, the Changefly app data is also end-to-end encrypted as is the local data. We made access to Changefly ID easy and free with our Developer API. Changefly ID really does stop bots, spam, scams, and other threats from getting anywhere near users or their accounts. p.s. A big thanks to Tom (HN moderator) for their help! https://ift.tt/wAX9Dfu May 31, 2025 at 02:17AM

Show HN: Icepi Zero – The FPGA Raspberry Pi Zero Equivalent https://ift.tt/H0yjEgm

Show HN: Icepi Zero – The FPGA Raspberry Pi Zero Equivalent I've been hacking away lately, and I'm now proud to show off my newest project - The Icepi Zero! In case you don't know what an FPGA is, this phrase summarizes it perfectly: "FPGAs work like this. You don't tell them what to do, you tell them what to BE." You don't program them, but you rewrite the circuits they contain! So I've made a PCB that carries an ECP5 FPGA, and has a raspberry pi zero footprint. It also has a few improvements! Notably the 2 USB b ports are replaced with 3 USB C ports, and it has multiple LEDs. This board can output HDMI, read from a uSD, use a SDRAM and much more. I'm very proud the product of multiple weeks of work. (Thanks for the pcb reviews on r/PrintedCircuitBoard ) (All the sources on github under an open source license :D) PS. See some more pics on reddit https://ift.tt/GizHTMF... https://ift.tt/SgXGuVw May 28, 2025 at 07:01PM