Who offers it

Part of Teams and accounts, which explains why it matters.

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

  • E2BYes

    Each project has a spending limit, and reaching it blocks that project only.

    docs-confirmed “When a project reaches its spending limit, only that project is blocked.” Source

  • A monthly cap stops the organisation's sandboxes until the next month.

    docs-confirmed “once reached, the org's sandboxes are stopped” Source

  • A daily limit per key and a lifetime cap per sandbox stop spending at the limit.

    pricing-page “read-only keys, a daily spending limit per key, and compartments” Source

  • BoatWith a catch

    The catch: A personal account has no dollar cap; organisations can cap a member's machine time, which stops their new sandboxes.

    docs-confirmed “A personal account has no dollar cap.” Source

  • DaytonaWith a catch

    The catch: The ceiling is a prepaid pool of computing resources rather than a dollar amount, and running sandboxes are not stopped when it runs out.

    docs-confirmed “Daytona uses a pay-as-you-go billing model where you are charged based on the resources reserved for your sandboxes.” Source

  • SandboxerWith a catch

    The catch: A member's machine time can be capped, and a zero balance stops new sandboxes, but there is no account-wide dollar cap.

    docs-confirmed “Owners can also cap a member's machine time per billing period” Source

  • TensorlakeWith a catch

    The catch: Prepaid credit packs cannot be overspent, but the Pro plan bills overage beyond its included usage.

    pricing-page “no postpaid overage” Source

  • Vercel SandboxWith a catch

    The catch: Spend Management can pause projects at an amount you set, but it is a project pause rather than a sandbox stop.

    pricing-page “receive alerts or pause projects when you reach a specified amount.” Source

  • Note: There is no dollar limit you can set; per-instance budgets only cap model spending, and the prepaid wallet is the only ceiling.

    Budget figures are ceilings, not money; the wallet is the only pot of dollars.

    docs-confirmed “Budget figures are ceilings, not money.” Source

  • Note: Budget alerts only send email; they do not pause or cap anything.

    docs-confirmed “Budget alerts are informational only. They do not pause or cap usage.” Source

  • Note: There is no spending cap at all; only sandbox, CPU, memory and disk caps.

    docs-confirmed “There is no spending cap.” Source

  • BlaxelNot published

    No budget, cap or alert that stops a sandbox is published beyond the quota tiers.

    docs-confirmed “Monitor usage alerts” Source

  • boxdNot published

    No budget, cap or spend alert appears in the docs, pricing, FAQ or CLI reference.

    pricing-page “Every account is an organization.” Source

  • MorphNot published

    No budget or spend cap is published; plans sell prepaid compute units.

    pricing-page “Purchase MCUs to use compute” Source

  • SpritesNot published

    No spend cap or budget feature is published for Sprites.

    docs-confirmed “Pay only for the tool calls you use.” Source

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