Payment infrastructure for AI agents

Let software spend money intelligently.

Issue virtual cards with AI-powered spending controls. Your agents get isolated budgets, real-time risk scoring, merchant blocking, and a global kill switch — all before a dollar leaves your account.

Bank-grade encryption Visa & Mastercard Powered by Lithic AI risk scoring
apr — sandbox — live

99.9%

Uptime SLA

<8ms

Decision latency

8

Platform layers

$0

To get started

The risk you're taking right now

Why your credit card is the wrong tool

Giving an AI agent your credit card is like handing it the keys to your bank account.

Scenario Your credit card APPEN
Card compromised Full account exposed — freeze everything Isolated per-agent card, revoke in <8ms
Agent goes rogue No way to stop spending in real time Global kill switch — one API call
Spending controls None — agent can spend without limit Per-agent daily/monthly limits enforced
Merchant control Agent can buy from anywhere Block merchants, categories, geographies
Audit trail Bank statement, delayed by days Every event logged in real time
Duplicate subs No detection — silently compounds AI detects & flags duplicates automatically
Approval workflows Impossible — no hook point Human sign-off above any threshold
Agent isolation All agents share one card Each agent gets its own isolated card

Platform

Eight layers. One platform.

Not just card issuing — an operating system for every dollar your AI agents spend.

Intelligence Layer

  • AI evaluates every transaction before execution
  • Detects duplicate subscriptions automatically
  • Predicts spend patterns and anomalies
  • Suggests cheaper alternatives in real time

Orchestration Engine

  • IF condition → trigger payment → log result
  • Chain agent actions with programmable policies
  • Conditional approval workflows
  • Event-driven spend automation

Multi-Rail Payments

  • Virtual Visa / Mastercard cards
  • Internal wallet with prepaid balances
  • ACH transfer support
  • Cross-agent fund transfers

Simulation Engine

  • Simulate agent spending before execution
  • Predict total cost over time
  • Detect infinite loops and risky behaviors
  • Replay historical transaction sequences

Security OS

  • Ephemeral cards (expire in seconds)
  • Risk score per transaction (LOW/MED/HIGH/CRITICAL)
  • Global kill switch — freeze everything instantly
  • Per-agent card isolation

Spend Intelligence

  • Spend graph: per-agent, per-task, per-API
  • ROI tracking and cost attribution
  • Budget alerts at 80% / 100% utilization
  • Anomaly detection and trend analysis

Developer Experience

  • CLI tool: `apr cards create` in 2 seconds
  • Instant API key — no approval queue
  • Local sandbox with mock transactions
  • 38 endpoints, OpenAPI spec, SDKs

Marketplace

  • Plugin system for agent actions
  • Prebuilt buying agents (SaaS, ads, APIs)
  • Third-party agent templates
  • One-click agent deployment

Intelligence Feed

Live insights from your agent activity

LIVE
Duplicate detected−$32/mo

3 agents paying for Notion separately

Anomaly flaggedRISK: HIGH

AWS spend up 340% vs 30-day avg

Optimization found−$21/mo

Switch to annual GitHub → save 17%

Pattern learnedINFO

research-agent peaks Tue 2–4pm

Predicted monthly: $847

↓12% vs last month · Based on current velocity

Intelligence Layer

AI that watches every dollar before it leaves

Every transaction is scored in real time. The intelligence layer detects anomalies, flags duplicates, predicts spend trajectories, and surfaces optimizations — automatically.

  • Pre-flight risk scoring

    Every transaction gets a LOW/MED/HIGH/CRITICAL score before auth.

  • Duplicate subscription radar

    Detects when multiple agents pay for the same service.

  • Spend optimization engine

    Suggests annual plans, alternatives, and consolidations.

  • Anomaly detection

    Flags spend spikes vs your 30-day rolling average.

Enable intelligence layer

API First

Five lines to issue a card

SDKs for Python, TypeScript, and plain HTTP. Works with any AI framework.

38 endpoints available
import appen as apr

apr.configure(api_key="apr_live_...")

# Issue a card for your AI agent
card = apr.cards.create(
    agent_id="shopping-bot-v2",
    daily_limit=50.00,
    rules=[
        apr.Rule.block_merchants(["netflix", "spotify"]),
        apr.Rule.require_approval_above(25.00),
        apr.Rule.allow_categories(["software", "saas"]),
    ]
)

# Intelligence layer runs automatically
print(f"Card ready: {card.number}")
print(f"Risk engine: {card.risk_profile}")
# → Card ready: •••• •••• •••• 4832
# → Risk engine: enabled (threshold: HIGH)

Use Cases

Every type of AI agent, covered

E-commerce purchasing agent

The problem

Your shopping bot can buy anything from anyone — including things it shouldn't.

The solution

Allowlist specific merchants, set daily limits, require approval above $25.

47 merchants blocked$340/mo saved0 rogue purchases
example.py
card = apr.cards.create(
  agent="shop-bot",
  daily_limit=200,
  allowlist=["amazon.com", "bestbuy.com"]
)

How it works

Up and running in minutes

01

Issue a card

One API call creates a virtual card tied to a specific agent identity. Under 2 seconds.

Visa or Mastercard, sandbox or live, ephemeral or persistent.

02

Configure policies

Set spending limits, block merchants, define approval thresholds, enable AI risk scoring.

Rules stack in priority order. Zero-config defaults available.

03

Agents transact freely

Agents spend within the boundaries you defined. Every transaction is scored and logged.

Declined in <8ms. Approved instantly. Flagged for review.

04

Intelligence optimizes

The AI layer continuously analyzes patterns, detects anomalies, and surfaces cost savings.

Insights delivered in-app, via webhook, or email.

Orchestration Engine

Programmable spending workflows

Build IF/THEN policies that chain agent actions, trigger approvals, and log results — all without writing custom infrastructure.

  • Conditional approval routing based on risk score
  • Time-based spending windows (business hours only)
  • Auto-cancel when monthly budget is 90% utilized
  • Chain payments across multiple agents and accounts

Sample workflow

1
TRIGGER: Transaction attempt
2
IF: Risk score > MEDIUM?
3
DO: Require human approval
4
IF: Approved within 5 min?
5
DO: Execute payment + log
6
ELSE: Auto-decline + alert owner

Pricing

Simple, transparent pricing

Start free. Scale as you grow. No hidden fees.

Free

For side projects and exploration

$0/mo
  • 3 agent cards
  • $1K/mo spend limit
  • Basic rules engine
  • Sandbox mode
  • Community support
Start free
Most popular

Pro

For growing teams with real workloads

$49/mo
  • 25 agent cards
  • $100K/mo spend limit
  • Intelligence layer
  • Orchestration engine
  • Approval workflows
  • Ephemeral cards
  • Full API access
  • Priority support
Get started

Enterprise

For scale, compliance, and custom requirements

Custom
  • Unlimited agent cards
  • Custom spend limits
  • Multi-rail payments
  • Custom AI policies
  • SOC 2 Type II
  • 99.9% uptime SLA
  • Dedicated support
  • On-prem option
Contact sales
Free tier — no credit card required

Your agents are spending right now.
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Join teams already controlling, observing, and optimizing their AI agent spend. Set up in 5 minutes. First card free.