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Signet-AI
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Signet AI
by Signet-AI · Signet-AI/signetai
Local-first vault for agent secrets — agents reference secret names, not values; values never leave your machine.
Signet keeps the model honest: agent prompts reference secrets by name; Signet resolves them at call time inside tools. This prevents accidental secret leakage into model context and provider logs.
Why use it
Key features
- Local secret vault
- Reference-by-name in prompts
- Resolution inside tool calls
- Per-tool secret scoping
- Audit log
Live Demo
What it looks like in practice
ready
Use Cases
Real-world ways to use Signet AI
When to use: You're shipping an agent that touches APIs and don't want raw keys in prompts.
Flow
-
Vault keys
Signet vault add STRIPE_KEY.✓ Copied
→ Saved
-
Reference
Tool spec references $STRIPE_KEY.✓ Copied
→ Wired
-
Run
Agent never sees the value.✓ Copied
→ Safe call
Outcome: Tools call APIs without leaking secrets into prompts.
Combinations
Pair with other MCPs for X10 leverage
Layer secret-hygiene with destructive-op guards
Combine signet-ai-skill with claude-code-safety-net: Layer secret-hygiene with destructive-op guards✓ Copied
Cost & Limits
What this costs to run
- API quota
- N/A
- Tokens per call
- 0
- Monetary
- Free OSS
- Tip
- Rotate vaulted secrets like you would in any vault
Security
Permissions, secrets, blast radius
Minimum scopes: secrets-read secrets-write
Credential storage: OS keychain
Data egress: None
Never grant: put plaintext secrets in skills/configs
Troubleshooting
Common errors and fixes
Resolution fails
Confirm the secret name; case-sensitive
Alternatives
Signet AI vs others
| Alternative | When to use it instead | Tradeoff |
| 1Password CLI | You already have 1Password | Not agent-aware |