Issue your first agent card in 60 seconds — spend limits enforced at the network level. Get started free →

Spend limits for every AI agent.

Virtual cards for AI agents. Spend limits set in code and enforced at the network level on every charge.

Policy check

✓ spend_limit OK ($45 ≤ $500)

APPROVED $45.00

The card is just the start.

One card per agent. Every charge, under your control.

A card per agent.

Issue a dedicated virtual card to any AI agent in seconds. No paperwork, no waiting.

Your limits, enforced.

Set a daily budget or block certain merchants. Every charge is checked before it goes through.

$500 / dayBlocks: cryptoApproval > $200

Every charge, live.

Get a live feed of every approval and decline across all your agents. No surprises.

AWS Marketplace

$45.00

Approved

Unknown Vendor

$320.00

Declined

OpenAI API

$12.00

Approved

Freeze in one click.

Something look wrong? Pause any agent's card with one click. Resume whenever you're ready.

research-agent-01

❄ Card paused

code-agent-02

How it works

Up and running in minutes

Issue a card per agent

One API call provisions a unique virtual card tied to any agent identity. Cards are active instantly — no manual approval required.

const card = await limit.cards.create({
  agentId: 'research-agent-01',
  label: 'GPT researcher'
})

Set spend rules in code

Define daily caps, merchant blocks, category restrictions, and human approval thresholds directly in your agent config.

await limit.policies.set(card.id, {
  dailyCap: { usd: 50 },
  block: ['gambling', 'crypto']
})

Every charge is enforced

Each authorization is checked against your policy in real time before the charge clears. Violations are blocked automatically.

// Webhook fires on every auth
{
  status: 'APPROVED',
  amount: 45.00,
  policy: 'spend_limit OK'
}

Built for agents from

◈Claude⯬GPT-4⊕Cursor♥Lovable⚡AutoGPT◉LangChain◈Claude⯬GPT-4⊕Cursor♥Lovable⚡AutoGPT◉LangChain

Zero Config

Connect your agent.
Set a limit. Ship.

No custom auth webhook to build. Issue a card via the limit.md API, set a spend cap in the dashboard, and your agent is rate-limited on every transaction — no code changes.

limit.md — bash

$ POST /api/v1/agents
  {
    "name": "research-agent-01",
    "spendLimit": 500,
    "dailyCap": 2000
  }
 
✓ Card issued  card_last4: 7801
✓ Policy active  (limit: $500/tx)
➜  ready in 2 seconds
█

Auth timeline

Charge received

0ms

Policy loaded

12ms

Spend limit check

45ms

Daily cap check

62ms

Decision sent

78ms

APPROVED ✓

1800ms

✓ Decision returned in 1.8s

Under 2 Seconds

From charge attempt to decision. Faster than you'd think.

Every charge hits the limit.md webhook in real time. Policy is evaluated — spend limit, daily cap, merchant blocks — and an APPROVED or DECLINED fires back in under 2 seconds.

Full Visibility

Every agent. Every charge. Full audit trail.

Each virtual card belongs to exactly one agent. Every transaction — approved or declined — is logged with merchant, amount, policy evaluation, and timestamp.

Policy types

✓spend_limit

✓daily_cap

✓merchant_block

✓approval_threshold

✓card_status

✓velocity_limit

✓category_block

✓auto_decline

+ custom policy engine via webhook

Pricing

Simple, transparent pricing.

Start free. Scale when you're ready.

Free

Free forever

For solo developers and side projects

1 agent card
500 transactions/mo
1% cash back
Audit log (7 days)
API access

Start free

How we stack up.

Feature	Company Card	Brex	Custom Build
Per-agent virtual cards			~6 months
Real-time spend limits			varies
Approval inbox		limited	varies
No credit card to start			N/A
Per-agent audit log		limited	varies
1% cash back	varies	varies
API-first		limited

Ready to give your agent a limit?

Issue virtual cards for your agents in minutes. Spend limits enforced at the network level before a single charge clears.