Keyblind – encrypted secrets vault that hides API keys from AI agents
Keyblind is an encrypted secrets vault designed to protect API keys from AI agents. It ensures that secrets are resolved at runtime and never appear in conversation transcripts, addressing the common issue of developers accidentally leaking sensitive information. The tool supports multiple secret backends and is compatible with various AI tools that utilize the Model Context Protocol.
- ▪Keyblind keeps secrets encrypted at rest and resolves them at runtime, preventing plaintext values from being exposed.
- ▪Over 100,000 LLM conversations with exposed secrets were indexed by search engines in 2025.
- ▪Keyblind supports multiple secret backends, including 1Password and Bitwarden.
Opening excerpt (first ~120 words) tap to expand
Keyblind — Blind AI to Your Keys Encrypted secrets vault with MCP for AI agents. Secrets resolved at runtime, never leaked to LLM conversations. Why Developers regularly leak API keys, passwords, and tokens to AI coding tools. 100,000+ LLM conversations with exposed secrets were found indexed by search engines in 2025. AI agents read your .env files. They copy-paste secrets into conversations. They commit them accidentally. Keyblind stops this by keeping secrets encrypted at rest and resolving them at runtime — the plaintext value never touches the LLM transcript.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.