HeimWall
Stop leaking API keys and secrets into your prompts
What this is
Local macOS scanner that blocks secrets and PII from leaking into AI coding-tool prompts, for engineers who don't want to rely on cloud DLP.
Our one-line summary — not the founder’s tagline.
- How it works
- A macOS app that scans prompts in real time before they reach AI coding tools like Cursor, Claude Code, and Copilot, flagging leaked API keys, credentials, and PII using 47 local detection rules in under 50ms.
- What's different
- Detection happens on-device before data leaves the machine, and uses soft notifications instead of hard blocks so it doesn't interrupt the coding flow.
- Pricing
- Free 15MB macOS application for engineers; an early-access dashboard is offered separately for organizations.
- Best for
- Engineers using AI coding assistants who want to avoid pasting live secrets into prompts.
What we measured
Nobody else publishes this — it comes from knocking on the door every day.
- Watched by us
- 9 days
- Last checked
- 2d ago
Where it shows up
Every group here is a page of its own — each one checked daily.
The numbersIs it still shipping, is it overpriced, where did it land — and what the price is built from.
League price & chart
No money. No seat. It goes on your record — and in 28 days reality settles it.
Calls are closed while we rebuild accounts. You can still read every one of them.
AI. Launched 9d ago on PeerPush, where it placed #486. Today, the site itself changed 4d ago — evidence it's still shipping, not just announcing.
Quiet for 2 days — no penalty yet, but quiet doesn't stay free.
We check this site every day, ourselves. A founder can post “still working on it” — a claim like that doesn't price. What we price is what we can verify from the outside: evidence, not announcements. The real question isn't “will this be huge?” — it's “will they still be moving in four weeks?”
The market viewHow this launch is priced and ranked in our league — the investor side of the page.
ranked by the reality anchor, not the market price
It placed #486 on PeerPush with 41 votes. It also showed up on 2 other boards, and placed well on 1of them — that's the part that adds to the price.
No matter how much money goes in. There is no pump here — you can't make yourself right by buying more. The line only moves on things that actually happened: an award, revenue that grew, a new platform, code that shipped — or silence.
2 quiet days in between are left out — nothing happened on them. A launch that goes quiet eases down a little at a time — never a cliff you could have run from the night before.
No names, on purpose — a call is worth what it turns out to be worth, not who made it.
How the launch is moving on its own board, day by day — the crowd's attention.
A flat line is normal: votes stop within a day or two of launch, on every board. What's unusual — and what actually counts — is a launch that keeps pulling votes long after its day is over.
About
HeimWall catches leaked secrets, credentials, and PII before they reach AI coding tools like Cursor, Claude Code, and Copilot, without compromising engineer privacy. For engineers, it's a free 15MB macOS application that flags leakage in prompts in real time, in under 50ms, using 47 detection rules. Everything runs locally: no prompts uploaded, no content stored, no cloud DLP in the loop. For organizations, an early-access dashboard shows security leads leak trends and risk signals across the team without ever exposing what anyone typed. Managers see signal, not content. What makes it different: detection happens on-device before data leaves the machine, not after it lands in a vendor's logs. And it never blocks development, HeimWall provides soft notifications instead of hard blocks, so the friction budget stays intact. The outcome: engineers stop pasting live API keys into AI assistants without changing how they work, and security teams get visibility they currently have zero of.
Where it launched
3 platformsThe board it did best on sets the price. Every other board only adds to it if the launch also placed high on that board too — because just showing up somewhere isn't an achievement. Listing on twelve directories is free; placing well on them isn't.
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