Temporary access for an AI agent can mean a credential that expires, a session that times out or a switch you can flip off, and the six tools compared here do different ones. AI Commander ranks first because it is built for Claude, ChatGPT and Cursor and lets you bound a job without opening a port, while Teleport and Infisical are stronger when you need audited, per-credential lifetimes.

The useful question is not “does it expire” but “what exactly expires, and what do I do if I need access gone now?” The answers differ more than the marketing suggests.

Three kinds of “temporary”

A short-lived credential is the strongest form. Teleport, Smallstep and Infisical’s SSH certificates stop working at a fixed time, so a leaked key goes stale by itself. A time-limited session is the second form. Tailscale’s check mode makes a user prove identity again every period, which fits a human but is awkward for an unattended agent. The third is a revocation switch, where access lasts until you cut it. AI Commander’s code reset and per-machine blocks work this way, plus a one-hour window that applies only to anonymous code access.

Tool pages say “ephemeral” without saying which of these they mean. Check revocation behavior too. Infisical’s documentation notes that revoking an SSH dynamic-secret lease removes the record but leaves an already-issued certificate valid until its TTL ends, so a short TTL is the real control.

Agent-native or transport-only

Only some of these tools give an agent something to call. AI Commander exposes MCP, REST and Skill.md endpoints directly, and Teleport and Infisical both document agent identities. AWS Session Manager, Smallstep and Tailscale SSH secure the path to the machine, and an agent still needs a wrapper to use them. For a one-off job that wrapper is real work, so the agent-native option leads here despite a narrower expiry model.

Where AI Commander is the weaker choice

Its security page is plain about the limits: the agent runs as root by default on Linux, the session code is the credential, there is no per-user RBAC or per-user audit log of ordinary commands, and encryption is in transit only. If an auditor will ask who ran which command and when, Teleport, Infisical or Session Manager answer that better. For a bounded job on a machine you own, the outbound-only connection and the one-hour anonymous window are enough. End the job by resetting the code and unlinking accounts rather than assuming time will do it.

Where this is heading

Identity vendors are converging on agents as first-class identities with short-lived credentials and zero standing privilege, as Teleport’s February 2026 framework puts it. Expect the gap between “hand an agent a shell” tools and “govern an agent’s identity” platforms to narrow. The agent-native tools will add audit, and the identity platforms will add easier onboarding.