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ncrypted.ai One-Time Secret Storage
x402
ncrypted.ai One-Time Secret Storage is a paid API for AI agents from ncrypted.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-17).
Stores a client-side encrypted secret (password, API key, or note) server-side and returns an ID for building a self-destructing share link
Price / call$0.005
Success—
StatusUnknown
How this service works
ncrypted: store a client-side encrypted, one-time secret (password, API key, note). Returns an id; the client builds the share link /s/{id}#{key}. The secret self-destructs after one read or at ttl. Use the `ncrypted` npm SDK or @seidl-family/ncrypted-mcp to encrypt.
Output
Returns a secret ID (e.g. a UUID or short token) that the client uses to construct a shareable link in the format /s/{id}#{key}, where the fragment (#key) is the client-side decryption key that never touches the server. The secret payload is destroyed server-side after a single read or when the TTL expires.
Example use cases
Share database password securely
“I need to send a database password to a contractor — store it as an encrypted one-time secret that deletes itself after they read it, with a 48-hour TTL: 'P@ssw0rd!SecureDB42'”
Agent-to-agent secret handoff
“My deployment agent just generated a new API key and needs to pass it to the configuration agent securely — store 'Bearer eyJhbGciOiJ...' as an encrypted one-time secret that self-destructs on first read”
Temporary credentials for onboarding
“Create a burn-after-reading encrypted link containing the new employee's temp login credentials 'user: jsmith / pass: Welcome2024!' that expires in 72 hours and disappears after they open it once”
Technical details
Endpoint
POSThttps://ncrypted.ai/api/v1/secrets?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to share a sensitive value (password, API key, token, note) exactly once with guaranteed destruction after reading, or when secrets must not persist beyond a defined TTL. Ideal for agent-to-agent credential handoffs, onboarding flows, or any scenario where a secret must be transmitted without leaving a persistent copy. Prefer over general-purpose secret managers when zero-persistence and self-destruction are the primary requirements.
Side effects
- Invalid or malformed encrypted payload — secret not stored, 400 error returned
- TTL value out of acceptable range — request rejected with validation error
- Secret already consumed (read once) — subsequent access attempts return 404
- Secret expired past TTL — returns 404 or expiry error
- Payment failure via x402 protocol — request blocked before processing
- Server-side storage error — 500 returned, no ID generated
Tags
x402
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