AthenisHQ builds intelligent tools designed for high-value tasks, from AI behavioral evaluation and financial analysis to real-world visual inspection.
Behavioral observability for production AI — 9 signatures, empirical failure rates instead of vibes.
Runtime filter that blocks scope-creep and prompt-injection tool calls before an AI agent runs them — deterministic, no LLM in the hot path.
AI stock scores hash-chained to a public ledger the moment they're published — 59 predictions live.
Handwritten notes for iPad and iPhone — a freeform Pencil canvas with an AI assistant that reads your handwriting.
An AI smart calculator with 18+ specialized tools and a reactive tape history.
Snap a photo of your tires, get an instant AI read on tread depth and wear.
Aletheia MCP — published to npm and the official MCP registry; runtime tool-call filter now installable with a single command.
OwlScore — 59th live prediction added to the public ledger. Backtest accuracy holds at 43.6% against S&P 100.
Aletheia — behavioral taxonomy validated against 2,780 real-world incidents across AIID, AVID, and the MIT AI Risk Repository.
OwlNote — Pencil canvas and folder system reach feature parity across iPad and iPhone.
CAL-C — 18th specialized calculator engine shipped to the internal build.
Six products deep, three shipped and live, before the first outside hire.
AthenisHQ is led by a founding team of engineering leaders with over a decade building AI-powered platforms and infrastructure at internet scale — leading teams that ship products used by hundreds of millions of people, and building the deployment and reliability systems that keep them running.
Production-grade, at scale, no shortcuts — the bar every product is held to. Three are already live proving it end-to-end; the rest are close behind, and the studio is now building the team to take all six further.
None of the six compete on being first — they compete on being verifiably right: a public hash-chained ledger instead of a claimed track record, empirical failure rates instead of vibes-based safety claims.
Questions about a product, a partnership, press, or something else entirely — reach out directly.