Infisical vs SikkerKey

Infisical is an identity security platform for managing application secrets, certificates, and privileged access across cloud, on-prem, and AI infrastructure. Secrets Management centralizes credentials for syncing, rotation, and auditing across environments and workloads, with role-based access scoped by environment, path, and identity. Secrets can be rotated on a schedule or issued as short-lived credentials. Certificate Management handles private certificate authorities and automates certificate issuance, renewal, and revocation. Privileged Access provides short-lived identity-based sessions with auditing, while Agent Proxy keeps real secrets at the proxy and gives agents placeholders, with requests logged. Infisical lists integrations including AWS, Azure Key Vault, GitHub, GitLab, Datadog, OpenAI, and PostgreSQL. It can be used as Infisical Cloud or self-hosted. A free plan is available; paid plans start at $20 a month billed annually. The free certificate plan is limited to 10 active certificates, up to 5 SANs per certificate, and no wildcard SANs.

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.