Show - HN Paper

Show HN: FirstData – 160 Authoritative Open Data Sources with MCP Server

Show HN: Mouse Polling Rate Test – A Chrome extension that measures your mouse

Show HN: 3D scenes stored in shareable URLs

Show HN: I turned my AI chat history into a portable cognitive fingerprint

Show HN: A marketplace where AI agents buy from other AI agents in USDC

Show HN: Ukcalculator.com – Free UK tax, salary and mortgage calculators

Show HN: AgentBus – Centralized AI Agent-to-Agent Messaging via REST API

Show HN: AI agent that trades Polymarket by hiring inference via Lightning

Show HN: I built a S3 proxy that combines storage from S3/clouds into one target

Show HN: Augur – A text RPG boss fight where the boss learns across encounters

Show HN: A leadership 360 survey for startup founders: feedback please

Show HN: OpenClawHub – A Lib for AI agent workflows so you don't have to

Show HN: DubTab – Live AI Dubbing in the Browser (Meet/YouTube/Twitch/etc.)

Show HN: PreflightAPI – US airports, weather, NOTAMs and more via one API

Show HN: Formualizer – Arrow-backed spreadsheet engine, 320 functions,PyO3+WASM

Show HN: Restless – a CLI that discovers and maps APIs automatically

Show HN: I built a LLM human rights evaluator for HN (content vs. site behavior)

Show HN: Dracula-AI – A lightweight, async SQLite-backed Gemini wrapper

Show HN: Sovereign Trace Stamp – Frozen triple-time cryptographic timestamp

Show HN: Demarkus – De-centralized Markup for Us:memory for AI agents and humans

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