boxkiteA dev-environment platform for humans and agents, vs. a sandbox just for agents.
Daytona positions itself as a general dev-environment platform — Web Terminal, SSH, VNC, VPN, and LSP all exist because a human developer is as much the audience as an agent is. boxkite is scoped narrowly to headless agent code execution, self-hosted on your own Kubernetes cluster.
More overlap than you'd expect, one structural difference
On raw sandbox-infrastructure features — git, processes, secrets, preview URLs — the two products have converged. The real divide is who each one is built for, and (as of this writing) whether you can run it yourself at all.
| boxkite | Daytona | |
|---|---|---|
| Self-hostable | Yes — your own K8s cluster | No — reportedly privatized (verify) |
| Open source | Yes — MIT | No longer — core privatized |
| Primary audience | AI agents only — headless execution | Humans and agents, shared dev environment |
| Git operations | Opt-in, 8-op tool set | Full git porcelain as SDK methods |
| Long-running processes | Background start/stop/watch, opt-in real PTY | Sessions, WebSocket streaming, interactive input |
| Custom base image / packages | Off by default — pinned packages, no raw Dockerfile | Fluent SDK, Dockerfile passthrough, build cache |
| Secrets handling | Per-tool proxy-substitution; opt-in scrubbed env injection | Org-wide intercepting egress proxy |
| Preview URLs | Signed, revocable, streamed — path-prefixed | Standard + signed variants, public/private toggle |
| Human-facing terminal access | Audited human-takeover, RBAC-gated | Web Terminal, SSH, VNC, VPN |
| Computer Use (GUI automation) | No — headless only, by design | Full desktop automation API |
| LSP (Language Server Protocol) | No — deliberate non-goal | Diagnostics/completions per language |
| Audit logs | Per-sandbox exec log, history + live tail | 40+ tracked action types, org-level API |
| SDK languages | Python and JS | Five languages |
| Vendor lock-in | None — you own the stack | Hosted, and no longer self-hostable at all |
Different stopwatches — and speed isn't the deciding factor.
Daytona claims sub-90ms creation (daytona.io ↗) — but that's a best-case provisioning number measured inside their own infrastructure (same region, image cached, the client round-trip excluded); it isn't a spin-up from your machine over the internet. boxkite's ~0.9s p50 / ~1.3s p95 is the opposite kind of measurement: a full client-side round-trip, where even a no-op API call pays ~0.3–0.5s of gateway and network overhead their figure never counts. The two aren't a like-for-like race, and we're not going to dress one up as if they were. Either way, speed isn't the reason to pick boxkite — it's that boxkite is MIT-licensed and fully self-hostable, running entirely on your own cluster with no per-second billing, where Daytona's core is no longer open or something you can run yourself at all. The trade you're weighing is openness and control.
Warm session start
~0.9s p50 / ~1.3s p95
p50 877 ms · p95 1289 ms · n=10
In-sandbox exec
~0.4s
p50 419 ms · p95 509 ms · n=12
File operations
~0.4s
create/view/str_replace/grep, all ~0.4s p50 · n=6
boxkite figures measured against our hosted API on 2026-07-21; sample size shown per metric, client-side wall-clock, cluster warm and image cached. Daytona's "sub-90ms creation" is its own published characterization under its own methodology, not a head-to-head reproduction. Methodology: /blog/measuring-session-start-latency.
Daytona is a dev-environment platform an agent can also use — boxkite is infrastructure built only for the agent, that you run yourself.
Reach for Daytona if you want a shared environment humans and agents both work in, with GUI access and broader language-tooling support. Reach for boxkite when the requirement is narrower and stricter: a self-hostable, Kubernetes-native sandbox purely for agent tool calls, with a batteries-included bash/python/file/process tool surface and no dependency on a third party's hosted core.
Two ways to run boxkite — same code
Both paths run identical control-plane/ code — pick the operational model that fits.
Self-host
The OSS repo, your cluster
docker compose for kicking the tires, or real Kubernetes for production — full control over the isolation model, data never leaves your cluster.
Hosted API
The beta control-plane
Try boxkite without standing up Kubernetes yourself — fair-use free tier, 20 sandbox-hours/month, 2 concurrent sandboxes, no billing yet.
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