Upstash Box

provider: "upstash"

Billed per active CPU core-hour only (memory and idle time free); estimate assumes every core of the box busy; fixed sizes 2/4, 4/8, 8/16.

List price per hour

1 vCPU · 2 GB	$0.200
2 vCPU · 4 GB	$0.200
4 vCPU · 8 GB	$0.400
8 vCPU · 16 GB	$0.800
16 vCPU · 32 GB	max 8 vCPU
32 vCPU · 128 GB	max 8 vCPU

Source: upstash.com, 2026-11-04 (an estimate, not a bill)
Billing: CPU only while busy; shown with every core busy
Plan: none needed

Adapter

Supports: Exec + streaming · Files
Max size: 8 vCPU · 16 GB
Routing: Chosen when it's the cheapest fit, or as a fallback
Docs: upstash.com

Measured on real accounts

Real-account check: not run yet; tested against a mock of its API only
Cold start: not measured; no benchmark run yet
Succeeded: not measured; no benchmark run yet
Size you get: not measured; no cost run yet
Billed vs list price: not measured; no cost run yet

Help verify Upstash Box

Have a Upstash Box account? These run real sandboxes on it, for a few cents at most, and write result files that fill in the blanks above. Results never include your keys. Run them in a clone of the repo and open a pull request with the files: CI checks every file for keys and impossible numbers, and a maintainer reviews each one before it shows here.

terminal

npx @sandboxrouter/sdk check --provider upstash --save --by YOUR_GITHUB_USERNAME
npx @sandboxrouter/sdk bench --provider upstash --runs 5 --share --label "your city or cloud region" --by YOUR_GITHUB_USERNAME
npx @sandboxrouter/sdk cost run --provider upstash --minutes 10 --by YOUR_GITHUB_USERNAME

Real-account check, step by step

Not run on a real account yet; the adapter is tested against a mock of Upstash Box's API.

setup

npm i @sandboxrouter/sdk
export UPSTASH_BOX_API_KEY=...

use Upstash Box

import { Router } from "@sandboxrouter/sdk";

const router = new Router();
const sbx = await router.create({}, { provider: "upstash" });
await sbx.exec("uname -a", { onStdout: (c) => process.stdout.write(c) });
await sbx.kill();