AWS Secrets Manager vs SikkerKey
AWS Secrets Manager
aws.amazon.com
SikkerKey
sikkerkey.comSide by side
| Figure | AWS Secrets Manager | SikkerKey |
|---|---|---|
| Price from | $0.40/mo | $29/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Plans published | 2 | 3 |
| Spec score · Secrets Management Tools | 8.5 (#3) | 8.0 (#14) |
| Compliance | AWS lists support for compliance workloads involving DoD CC SRG IL2, IL4, and IL5, FedRAMP, HIPAA, IRAP, OSPAR, ISO 27001, ISO 27017, ISO 27018, ISO 9001, PCI-DSS, and SOC. | The service processes data in the EEA and states that GDPR safeguards apply to its processing and transfers. |
| Encryption | Secrets Manager encrypts secrets at rest with AWS Key Management Service keys and transmits retrieved secrets over TLS. | Secrets use three-layer envelope encryption with per-secret AES-256-GCM data keys, per-project master keys and a separate root key. |
| Integrations | Listed AWS integrations include Amazon RDS, Amazon Redshift, Amazon DocumentDB, Amazon MSK, Amazon SageMaker, AWS CodeBuild, and AWS Transfer Family. | SikkerKey integrates through its CLI, SDKs or signed HTTP with CI/CD, containers, app platforms, serverless functions, servers and on-premise systems. |
| Target users | AWS describes Secrets Manager as serving IT administrators, security administrators, and developers replacing hard-coded secrets in applications. | The service is designed for software engineers, DevOps teams and organizations managing application secrets. |
Plans
In their own words
AWS Secrets Manager
AWS Secrets Manager has no write-up on Specifiction yet; its figures are above.
SikkerKey
SikkerKey is a secrets manager and vault for application and infrastructure credentials. It supports standard, structured, managed, leased, certificate, canary, and TTL secrets, as well as secret rotation and dynamic secrets. Machines authenticate by signing each request with an Ed25519 private key that stays on the host. Teams can connect it to CI/CD, containers, app platforms, serverless functions, servers, and on-premise systems through its CLI, SDKs, or signed HTTP. Official SDKs are available for Go, Python, Node.js,.NET, Kotlin, and PHP. Its CLI supports Linux x64 and ARM64, macOS Intel and Apple Silicon, and Windows x64. The service describes a three-layer encryption design; its MCP server gives AI agents a separate identity class that cannot retrieve plaintext secret values. SikkerKey says its vault, secrets, and audit trail stay in the EU and are operated from Denmark. The free Developer plan is free and includes 10 machines; paid plans start at $29/mo. Every plan includes direct in-dashboard support and unlimited secret, project, read-volume, and rotation counts.