CapabilitiesTeams and accounts
Hard spending cap
Set a limit the bill cannot go over; machines stop instead.
Short answer: 4 of 16 providers offer it fully: E2B, InstaBox, Modal and Runtime. With a catch: Boat, Daytona, Sandboxer, Tensorlake and Vercel Sandbox. Checked 29 October 2026.
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
- InstaBoxYes
A monthly cap stops the organisation's sandboxes until the next month.
docs-confirmed “once reached, the org's sandboxes are stopped” Source
- ModalYes
An environment budget stops workloads at the limit, on Team and Enterprise.
docs-confirmed “When the spend limit is reached, Modal stops workloads that would incur additional out-of-pocket charges.” Source
- RuntimeYes
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
- Agent 37No
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
- LizardNo
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
Related
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