Spend Control for v0
v0 turns prompts into UI and full-stack features. The features you ship run agents that spend — the guard covers them.
Why v0-built apps spend
Generated features call APIs and run agentic flows.
Deployments on Vercel bill per usage.
How it works
Add the guard to the agents in your v0-built app — HTTP or MCP, one call before any purchase.
Rules that fit
Per-app ceiling, merchant allowlist, category rule.
Guard call
const res = await fetch("https://sipi.bot/v1/transactions/evaluate", {
method: "POST", headers: { "Content-Type": "application/json" },
body: JSON.stringify({ amount: 8, merchant: "api.vendor.com", category: "api" }),
});
const { decision } = await res.json();Ship features with budgets.
FAQ
Does this work with Vercel AI SDK?
Yes — and there's a dedicated AI SDK integration.
What about Vercel's own billing?
sipi.bot governs agent spend; Vercel bills your deployments.
Related
Stop the next $12,400 night.
One API call (or MCP tool) in front of every agent transaction — APPROVED, BLOCKED, or FLAGGED, deterministic, ~5 ms, fully logged.
See plans — from $99/mo Try a live check