ProtoWall Is Live

2026-04-21 · ProtoWall Team

ProtoWall is live. We launched on Hacker News and Product Hunt.

What it does

ProtoWall puts an authentication and NDA wall in front of your prototype. You invite reviewers by email, they accept a versioned NDA with their name as an e-signature, and they access your prototype through a reverse proxy. Your app doesn't change. No SDK, no middleware, no code changes.

Every action is audit-logged. Timestamps, IPs, user agents, signature names, SHA-256 content hashes of the NDA text. You can export the full trail as CSV or download a per-reviewer PDF evidence package with consent records and the full NDA text. If someone leaks your work, you have documented proof they agreed not to.

Why we built it

We kept hitting the same problem. We'd build a prototype, need to show it to someone, and have no good way to share it without just handing out a URL.

Password protection is weak. Passwords get shared, and you have no record of who accessed what. Screen-share calls don't scale. Private beta tools skip the legal side. And "just trust them" isn't a strategy.

We wanted something that handles authentication, legal acceptance, and access control in one flow. And we didn't want to modify every prototype to support it.

How it works

Two services: a web app that handles users, invites, and NDA signing, and a reverse proxy that validates sessions and forwards traffic to your prototype.

Auth is magic-link only. No passwords for anyone. Reviewers click a link in their email, accept the NDA, and they're in. The proxy creates a 30-day session cookie.

NDAs are versioned. When you publish a new version, existing reviewers lose access until they re-sign. Each consent is tied to a specific document version.

Revocation is instant. Click Revoke, and the session is deleted. Not invalidated at the next token refresh. Deleted.

Pricing

Free tier gets you 1 project and 5 invites. Enough to run a real pilot.

Pro is $19/month for 5 projects, 25 invites per project, custom NDA text, full version history, 90-day audit retention, and PDF evidence export.

If you're coming from Product Hunt, use code PRODUCTHUNT for a free month of Pro.

What's next

We're working on Business and Enterprise tiers with higher limits, custom domains, webhooks, and analytics. We're also looking at what features the first users actually want, so if you try it and have feedback, we want to hear it — hello@protowall.app.