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Keyblind
Encrypted secrets vault that blinds AI agents toyour APIkeys
AI coding tools read yourenv file — and secrets leak into transcripts. Keyblind encrypts API keys into a local AES-256-GCM vault and replaces them with deterministic fakes. Secrets resolve at runtime. Your AI never sees them. MCP-native, works everywhere. Encrypted secrets vault with MCP for AI agents. Secrets resolved at runtime, never leaked to LLM conversations.
Hey Product Hunt! I built Keyblind after getting paranoid about AI coding
tools reading my .env files.
The problem: Every AI editor (Claude Code, Cursor, Copilot) reads your
project files. When they read .env, your API keys end up in conversation
transcripts. Researchers found 100,000+ exposed secrets in LLM logs last
year. That's terrifying.
Keyblind is my answer:
1. Store secrets encrypted — AES-256-GCM, key bound to your machine
2. Sandbox your .env — deterministic fakes replace real values
3. Run with confidence — `keyblind run -- npm start` injects real secrets
The fakes are deterministic (HMAC-SHA256) so your git diffs stay clean.
Same fake every time for the same key.
Tech stack: TypeScript, SQLite (better-sqlite3), Node.js crypto. MCP
protocol over stdio. Zero network, zero telemetry, zero accounts. MIT.
It works with Claude Code, Cursor, Copilot, Windsurf, Cline, Zed —
any editor that speaks MCP. That's the key differentiator from
editor-specific alternatives.
Pricing: Free tier (5 secrets, all backends). Pro ($79/year — unlimited
secrets, team vaults, audit log, secret rotation, CI/CD integration,
biometric gate).
I launched 2 days ago and already have production users. Would love
feedback from the PH community — especially on what Pro features you'd
prioritize and whether you'd trust an MCP server with your secrets.
Ask me anything!
About Keyblind on Product Hunt
“Encrypted secrets vault that blinds AI agents toyour APIkeys”
Keyblind was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #126 on the daily leaderboard. AI coding tools read yourenv file — and secrets leak into transcripts. Keyblind encrypts API keys into a local AES-256-GCM vault and replaces them with deterministic fakes. Secrets resolve at runtime. Your AI never sees them. MCP-native, works everywhere. Encrypted secrets vault with MCP for AI agents. Secrets resolved at runtime, never leaked to LLM conversations.
On the analytics side, Keyblind competes within Open Source, Developer Tools and Security — topics that collectively have 585.2k followers on Product Hunt. The dashboard above tracks how Keyblind performed against the three products that launched closest to it on the same day.
Who hunted Keyblind?
Keyblind was hunted by Mohammed Aarif Shaikh. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Keyblind including community comment highlights and product details, visit the product overview.
Mohammed Aarif Shaikh