Sandbox guide

CapabilitiesBilling models

No monthly fee

Pay only for what you use, with no plan fee.

10 yes1 with a catch5 no0 not published

Who offers it

Part of Billing models, which explains why it matters.

Fully: Agent 37, Blaxel, boxd, Daytona, E2B, Modal, Morph, Runtime, Sprites and Tensorlake. With a catch: Vercel Sandbox. Not at all: Boat, Cloudflare Sandbox, InstaBox, Lizard and Sandboxer.

  • Agent 37Yesnone

    pricing-page “No monthly plan fee or seat charge.” Source

  • BlaxelYesnone

    Higher limits come from topping up a balance, not from a subscription.

    pricing-page “Usage-based pricing with infinite scalability.” Source

  • boxdYesnone

    pricing-page “There is no monthly plan and no per-seat fee.” Source

  • DaytonaYesnone

    pricing-page “Build for free, pay as you scale.” Source

  • E2BYesnone on Hobby

    The Pro plan adds a $150 monthly fee.

    pricing-page “$0 monthly plan fee.” Source

  • MorphYesDeveloper $0

    The free plan includes no compute; you buy units as you go.

    pricing-page “Additional credits billed pay-as-you-go” Source

  • RuntimeYesnone

    docs-confirmed “There is no plan fee.” Source

  • SpritesYesnone

    A separate product page describes optional monthly plans, which contradicts the pricing page.

    pricing-page “No plans and no tiers, and nothing charged per Sprite.” Source

  • TensorlakeYesprepaid credit

    The $250-a-month Pro plan is optional; prepaid credit works without it.

    docs-confirmed “Prepaid packs starting at $5” Source

  • Vercel SandboxWith a catchHobby free; Pro $20

    The catch: The free Hobby plan is for personal projects only; commercial use needs the $20-a-month Pro plan.

    docs-confirmed “$20/month Pro platform fee” Source

  • BoatNo$20 minimum plan

    Note: The smallest plan is $20 a month, and unused time expires, so a light month still costs $20.

    docs-confirmed “A plan is a monthly price that your card pays.” Source

  • Cloudflare SandboxNo$5 Workers plan

    Note: Sandboxes need the $5-a-month Workers Paid plan before anything can run.

    docs-confirmed “Available on Workers Paid plan” Source

  • InstaBoxNo$20 minimum plan

    Note: The free plan is capped at one machine, and anything more needs a $20-a-month plan.

    inferred “Free: $0” Source

  • LizardNo$19 plan

    Note: There is one plan at $19 a month, which includes $19 of usage.

    inferred “Pro costs $19 a month and includes $19 of usage for the whole platform: apps, databases, Sandboxes, storage and egress.” Source

  • SandboxerNo$20 minimum plan

    Note: The smallest plan is $20 a month, and included time does not carry over.

    docs-confirmed “Included time renews each billing month and does not roll over.” Source

Related

Other capabilities in this feature

Where it decides the choice

The feature

Words used here

  • Active-CPU billingThe processor is charged only while it is working, not while it waits. Cheap for agents that spend most of their time idle.
  • Per-second billingUsage is counted to the second, so a two-minute task costs two minutes. Some providers round up to a minimum first.
  • Included usageA monthly plan fee that comes with the same amount, or a set amount, of usage. You pay the fee even if you use less, and pay extra only above it.

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