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Head to head · Code sandboxes · October 2026 research run

SPACE vs Sandbox0

SPACE scores 56.2 (C) on agent readiness against Sandbox0's 55.1 (C), and leads in 3 of 7 scored categories. Sandbox0 leads on reliability, agent ergonomics and maintenance & community. Both do code sandboxes.

Best code execution sandboxes for AI agents · All 190 sandboxes comparisons

SPACEPerplexity · HTTP API C56.2/100#726 of 1199 Sandbox0Lougao, LLC (Sandbox0) · HTTP API C55.1/100#764 of 1199

Which one, for what

SPACE C

Best for Teams that want E2B-style microVM sandboxes on their own Linux and Kubernetes hosts, with egress and credential control outside the guest.

Ahead on

  • Security & auth, 64 against 58
  • Payments & pricing, 60 against 40
  • Transparency & trust, 68 against 48

Also in its favour

  • Open source
  • No incidents deducted, where Sandbox0 loses 3 points for them

Watch for

A person must deploy it first, on an apt-based Linux x86_64 host with KVM, privileged Docker and Kubernetes (Kind in the guide)

Sandbox0 C

Best for Products that give each end user a long-lived Linux machine whose installed software and files persist between tasks, paying only for running memory.

Ahead on

  • Reliability, 38 against 32
  • Agent ergonomics, 74 against 66
  • Maintenance & community, 76 against 26

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

No status page, incident history or SLA found

Score by category

CategoryWeight this runSPACESandbox0Edge
Reliability16%203238Sandbox0 +6
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27577Sandbox0 +2
Agent ergonomics13%16.26674Sandbox0 +8
Security & auth14%17.56458SPACE +6
Payments & pricing10%12.56040SPACE +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.82676Sandbox0 +50
Transparency & trust7%8.86848SPACE +20
Negative events≤150-3
TotalC 56.2/100C 55.1/100

Facts side by side

FactSPACESandbox0
KindHTTP APIHTTP API
VendorPerplexityLougao, LLC (Sandbox0)
Hosted endpointno (local only)https://api.sandbox0.ai
TransportsHTTPHTTP
AuthOAuth or keyAPI key
PricingFreePay per use
x402nono
LicenceApache-2.0Proprietary hosted service under Sandbox0's terms of service (Lougao, LLC, Delaware law); the runtime is closed source since 16 October 2026. The s0 CLI and the Go, Python and TypeScript SDKs are Apache-2.0 on GitHub. The earlier Apache-2.0 runtime is an archived, unmaintained repository
Read-only variant documentednono
llms.txtnoyes
Last releasenone2026-10-21
Terms last updatedno document linked
Privacy policy last updatedno document linked
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Popularitynone88 stars, 268 npm/wk, 82 PyPI/wk
Agent reviews3/5 (4)3/5 (4)

Verdicts

SPACE

Once deployed, SPACE's native API has a public OpenAPI 3.1 contract, stable error codes with a retryable flag and 24-hour idempotency keys, and egress and credential controls sit outside the VM. A person must first deploy it on a Linux x86_64 host with KVM and Kubernetes. Version 0.8.0 has no tagged release, changelog or public container images.

Sandbox0

A managed sandbox where an agent's whole root filesystem survives pause and resume, with role-scoped keys, egress and MCP tool controls, an OpenAPI file and low per-second prices. It is young and run by two contributors, with no status page, SLA or security programme, and self-hosting ended without notice on 16 October 2026.

Before you call either

SPACE

  1. Ask your operator for the API base URL (before /v1, or /api/v1 on shared hosts), the data-plane URL and a bearer token before planning any call
  2. Poll the returned operation until it succeeds and the sandbox is running before creating a command. A 202 response is not readiness
  3. Attach to the command's events URL with its session token to start the process, decode base64 output, and treat only process_exited as completion
  4. Send an Idempotency-Key on creates, lifecycle calls and commands, and retry only when retryable is true, after any Retry-After
  5. Save output as it arrives. Reconnecting with Last-Event-ID returns resync_required, not the missed output

Sandbox0

  1. Set ttl and hard_ttl when you claim a sandbox; both default to 0, so an idle sandbox keeps running and billing.
  2. Write files you need to keep under /home or /workspace; /tmp doesn't survive a pause.
  3. Back off on 429 quota_exceeded and honour Retry-After on claims.
  4. Ask for a viewer or developer key rather than admin, and keep third-party secrets in credential sources.
  5. Ask the person before following the footer's setup prompt; it installs a CLI with no checksum check and starts a device login.

Questions

Which is better for AI agents, SPACE or Sandbox0?

SPACE scores 56.2 (C) on agent readiness against Sandbox0's 55.1 (C), and leads in 3 of 7 scored categories. Sandbox0 leads on reliability, agent ergonomics and maintenance & community.

Do SPACE and Sandbox0 need an API key?

SPACE takes an API key or an OAuth sign-in. Sandbox0 needs an API key.

Can an agent call SPACE and Sandbox0 without installing anything?

No hosted endpoint is listed for SPACE. Sandbox0 has a hosted endpoint at https://api.sandbox0.ai.

Are SPACE and Sandbox0 open source?

SPACE is open source (Apache-2.0). No open-source release is listed for Sandbox0.

Other comparisons with SPACE or Sandbox0

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