Integration

Add authorization to the Vercel AI SDK

Wrap a Vercel AI SDK tool's execute so the agent's warrant is enforced before it runs.

Why authorize Vercel AI SDK tools?

The Vercel AI SDK defines tools with an execute function the model can invoke. Enforcement belongs inside execute: confirm the warrant, then act. One wrap adds scope, spend caps, rate limits, revocation, and audit — without changing how you define tools.

Wrap execute()

import { tool } from 'ai';
import { createClient, guardTool } from 'liceat';
const decide = createClient({ gateway: 'https://liceat.com' }).decider();
const pay = guardTool(decide, { resource: 'pay:stripe/charge', action: 'pay',
  amount: a => a.cents, currency: 'USD' }, async (a) => stripe.charge(a));

tool({ description: 'Charge a card', parameters,
  execute: (args) => pay(agentWarrant, args) }); // throws WarrantDenied if not permitted

What you get

• Least privilege — each agent gets a warrant scoped to exactly the tools, resources, and spend it needs.
• Provable afterward — every allow/deny is recorded in a tamper-evident log you can audit or hand to a compliance reviewer.
• Instant revocation — kill a compromised agent's authority immediately, and it cascades to every sub-agent it delegated to.
• No new keys to leak — the agent never holds your API keys, only a narrow, expiring warrant.

Frequently asked

What is Liceat?

Liceat is permission infrastructure for AI agents. You issue a warrant — a scoped, spend-capped, revocable token — that grants an agent narrow authority; the agent presents it at the point of action; Liceat enforces it (scope, spend, rate, holder-binding, revocation) and records every decision in a tamper-evident log. It is open source with a zero-dependency SDK for TypeScript and Python.

Is it free?

The SDK and self-hosted gateway are free and open source. The hosted gateway at liceat.com gives 10,000 free decisions with no card, then meters at fractions of a cent per decision — payable by card or USDC.