Dev tools · September 29, 2026
Otter Vault
Catch API keys the moment they appear, encrypted locally
Otter Vault launched on September 29, 2026 with 72 votes, #480 of 8,097 launches that month and more than 95% of that year's launches.
What it does
Otter Vault catches API keys the moment they appear and keeps them encrypted on your own device. Watch the demo and leave a reply, no account needed.
Otter notices the moment a secret appears, then lets you decide what happens next. When a site reveals a new API key, or you copy one in a terminal, Otter offers to keep it. Checked on your machine, against formats from OpenAI, Anthropic, Vercel, Cloudflare, Supabase, GitHub and more. AES-256-GCM, with the key derived from your passphrase using 600,000 rounds of PBKDF2. No servers, no accounts, no analytics. Copying asks for the passphrase again, and the clipboard clears itself. The Mac app lives in your menu bar, and the otter can follow your pointer across the screen. Click-through, so it never gets between you and your work. 86 tests, seeded fuzzing, cryptographic known-answer checks,…from ottervault.mechaclips.workers.dev
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