Vercel · Agent stack
Agents now write code to answer questions: a Python script to read a spreadsheet, a fix for a failing test. Running that code on your own server means trusting every line. Sandbox starts a separate Linux microVM for each job, with its own kernel. You set which hosts it may call, and credentials are added on the way out, so they never enter the box.
Salesforce consulting partner since 2010 · MVP Hall of Fame · 200+ agents in production · UAE, India and US desks
The problem
What Sandbox is
Facts from Vercel’s own pages, checked on 16 October 2026. The sources are at the end of this page.
How it works
Five steps. The code runs in its own machine and reaches only the hosts you allow. The box is gone when the job ends, unless you keep it.
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Step by step
Create
Your agent asks for a sandbox
Through the SDK or the CLI, in the region you pick.
Boot
A microVM starts
From Vercel’s image or your own, with its own kernel.
Run
The code runs inside
It writes files and runs commands. Network rules decide which hosts it may reach, and keys are added on the way out.
Read
Results come back
Exit codes, output and logs, or a live URL on an open port.
Stop
Stop, snapshot or keep it
Throw it away, save a snapshot, or let it persist and resume later.
How it fits together
The agent runs in your app, with the AI SDK or eve. When it writes code, that code runs in a sandbox. Results go back to the agent, and only actions a person approved reach Salesforce or your database.
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Use cases · worked examples
How Sandbox fits into the work of the industries we serve, one step at a time.
Example 1 · Financial services, Mumbai · Infographic
Today: Clients send portfolio statements as spreadsheets. Building one review takes me an afternoon in Excel.
After: An agent writes a Python script to read the statement and runs it in a sandbox in Mumbai. The sandbox can reach only the price feed the firm allows. The manager checks the draft before it goes to Salesforce.
Worked example, step by step
The manager starts from a checked draft, and the statement is processed in a locked box in Mumbai.
Example 2 · Digital agency, Bengaluru · Infographic
Today: We use coding agents on client projects. I cannot let one run npm install on a laptop that holds every client’s keys.
After: Each coding task runs in its own sandbox, with Claude Code or Codex from the base image. The agent can reach the package registry and GitHub only. A developer reviews the pull request before anything merges.
Worked example, step by step
Coding agents work on one client’s code at a time, with no other client’s keys in reach, and a developer approves every merge.
Example 3 · Restaurants and cafes, Riyadh · Infographic
Today: Every Sunday I export sales from the till and try to work out which branch sold what. It takes my whole morning.
After: The owner sends the export on WhatsApp. An agent writes the analysis and runs it in a sandbox with no outside network, then sends back a summary and a chart. The operations manager approves any change to next week’s orders.
Worked example, step by step
The owner reads Sunday’s numbers over coffee, and order changes still go through the operations manager.
Is it for you
Good fit
Not for you yet
What Mindcat does
The assessment is free: a short read of the org and a written note. If you go ahead, the first build week is a fixed AED/SAR 14,900 (about USD 4,050), credited in full when you sign the build within 60 days. After go-live, we keep it patched, watched and changing every month.
FAQ
Sources
Checked against Vercel’s own pages on 16 October 2026. Vercel changes fast, so we check again before any plan we write for you.
Vercel is a product of Vercel Inc. Mindcat builds and runs work on it for clients; we are not affiliated with or endorsed by Vercel.
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