Searchers for AI agent platform are past the toy phase. They want somewhere to run agents: always-on, isolated, with their own keys — not another framework README.
What the category actually means
An AI agent platform is not:
- A model chat box
- A pure orchestration graph UI
- An ephemeral code-execution sandbox alone
- A browser IDE with an "agent" button
It is the runtime layer: where process, filesystem, network, and secrets live while the agent works. If that layer is wrong, frameworks and prompts do not save you.
The buyer checklist (use it on every vendor)
- Isolation — shared container kernel, or a real guest kernel (Firecracker / KVM)?
- Keys — BYOK inside the tenant, or a platform credits ledger?
- Uptime shape — always-on agent, or spin-up-per-call sandbox?
- Harness choice — one proprietary agent, or install the agent you already picked?
- Economics — flat monthly for 24/7, or metered seconds that explode when the agent stays awake?
- Ops — who owns TLS, patches, snapshots, and restore?
Score vendors on those six. Marketing logos are noise.
Where jurniti sits
jurniti is a managed Firecracker microVM platform for agent harnesses. Each tenant gets a dedicated guest, persistent volume, and BYOK path. You pick Claude Code, OpenClaw, Hermes, Codex, and the rest of the catalog — the platform stays agent-agnostic.
That is different from:
- Ephemeral sandboxes (great for one-shot code; painful for always-on bots)
- Generic PaaS (you still invent the agent host)
- Cloud IDEs (human coding sessions, not long-lived agents)
- Cheap shared-kernel agent hosts (density pricing, shared blast radius)
"Best AI agent platform" is a trap headline
There is no single best. There is a best for your constraint:
| Constraint | Prefer |
|---|---|
| Burst code execution inside your app | Ephemeral sandbox product |
| Human pair-programming in the cloud | Codespace / CDE |
| Ship a web app + worker | PaaS |
| Always-on agent holding production keys | Dedicated microVM host (jurniti's lane) |
If your brief is "best AI agent platform" because you want parallel coding agents or a messaging bot that never sleeps, evaluate isolation and BYOK first.
Pricing honesty
jurniti plans start at $25/mo (or $250/year). Model spend is yours (BYOK). First purchase has a 30-day money-back guarantee. No free tier — free slots select tire-kickers and burn real compute.
How to evaluate jurniti in an afternoon
- Pick the harness you already use on pricing / the harness landing
- Checkout — auto-provision (~minutes, not a sales ticket)
- Confirm keys stay in the guest and the agent survives restart
- Snapshot or templatize only after you trust the box
Related
- Claude Code worktrees / multiple agents
- AI agent security
- MicroVM vs Docker for agents
- Replit alternative when the comparison is browser IDE vs agent host