The credential lives at the boundary, not in the context. Short-lived, scoped tokens that your team and AI agents use — the real key never leaves the vault. Zero-knowledge encryption means even we can't see your data.
Every sandbox tool gives agents full credentials and then tries to limit the damage. API Stronghold starts with nothing to exfiltrate.
Give the agent real credentials, then try to restrict what it can do.
Used by: sandboxed agents, container-based isolation, network-level blocking
The agent never holds real credentials. The secret lives at the boundary, not in the context.
"The credential you can't steal is the credential that's already expired."
Works on macOS, Linux, and Windows. View CLI docs
What developers are saying
"A compromised web server leaks data. A compromised agent with your AWS key can delete infrastructure. The blast radius scales with the permissions you gave it. Scope what the agent can reach before it gets compromised, not after."
— r/cybersecurity, 32 upvotes
"The fix is enforcing least-privilege at the tool level, not the model level. The model will always find ways around content restrictions. The infrastructure boundary is what holds."
— r/cybersecurity, 7 upvotes
"You can define the rule, you can document it, but if the agent runtime loads a .env with 12 keys and the agent only uses 3, the other 9 are still attack surface. The policy is right; the implementation doesn't enforce it."
— r/cybersecurity, 6 upvotes
Making key management easier for developers and security teams facing the challenges of modern API security.
Complete API key management from creation to rotation. Secure API keys with automated lifecycle management and enterprise-grade security controls.
Accelerate development with centralized secrets management. Environment variables sync across all deployment environments for faster, more secure releases.
One-click environment variables sync with Vercel, GitHub, and AWS. Secure secret rotation in CI/CD pipelines and maintain consistent configs across all environments.
Give AI agents access to only what they need. Scoped, session-bound tokens mean a compromised agent has nothing worth stealing.
No infrastructure to manage. No YAML to write. Just install, authenticate, and sync.
One command installs the CLI on macOS, Linux, or Windows. Or use the web dashboard directly.
Organize keys by project and environment. Assign team members to groups with granular permissions.
Push secrets to Vercel, GitHub Actions, AWS, or pull them into local .env files. One click, every environment stays consistent.
Set up in 5 minutes. Secure your keys with enterprise-grade encryption.
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Security & Trust
Mozilla Observatory and Security Headers both rate our site A+ — the highest possible score. All recommended security headers are implemented, inline scripts are eliminated via SHA-256 hashing, and we run strict CSP with default-src 'none'. See the Mozilla report. See the Security Headers report.
Guides and deep dives on API security, secrets management, and developer workflows.
How to give an AI agent access to only the API keys it needs using scoped secrets and the CLI.
Why your secrets manager shouldn't be able to read your secrets, and how zero-knowledge architecture changes the game.
Spin up OpenClaw in Docker with scoped API keys injected securely from API Stronghold.