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        Cost control dashboard for AI agents
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Cost Control Dashboard

Never Let Your Agent Overspend Again

Real-time spending limits and alerts for x402-powered agents. Sleep easy knowing your agent can't drain your bank account.

Protecting 500+ agents | $2M+ in prevented overruns

SmartProxy Protection

The $10,000 Wake-Up Call No One Talks About

Building API monetization shouldn't be harder than building the API itself.

Runaway Costs

Your agent gets stuck in a loop at 3 AM

Burns through $5,000 before you wake up

Zero Visibility

Agents consume dozens of x402 APIs

No idea where money is actually going

Manual Monitoring

Constantly checking spend logs

Living in fear of the next invoice

There's a better way to manage agent spending...

Your Agent's Financial Guardian

Transform any API endpoint into a revenue stream with enterprise-grade infrastructure.

Hard Spending Limits

Set daily, weekly, monthly caps

Agent stops when limit reached

Real-Time Alerts

Instant notifications at 50%, 80%, 100%

SMS, email, Slack alerts

Per-Agent Budgets

Assign unique budgets to each agent

Track spend across your entire fleet

AWS Proxy Endpoint

Simple 1-line code change

Route all x402 traffic through us

Spending Analytics

See exactly which APIs cost the most

Identify optimization opportunities

Team Controls

Role-based spending policies

Department-level budget allocation

Protected in 3 Minutes

Simple setup process that doesn't require changes to your existing agent code.

1
Connect Your Agent

Replace your x402 endpoint with ours

ENDPOINT = "https://firewall.xpay.io/YOUR_KEY"

Simple one-line change to route all x402 traffic through our protection layer

2
Set Your Limits

Configure spending rules in our dashboard

// Set daily limit: $100 // Alert at: 50%, 80%, 100% // Emergency stop: enabled

Use our intuitive dashboard to set spending limits and notification preferences

3
Deploy with Confidence

Your agent runs normally, we handle protection

✅ Agent protected ✅ Real-time monitoring ✅ Full audit trail

Your agents continue working as expected with complete financial protection

Start Free, Scale As You Grow

Choose the perfect plan for your agent protection needs.

Developer

Free/Forever

1 agent

Up to $100/month in x402 spend

Basic alerts

Email support

7-day transaction history

MOST POPULAR

Team

$49/month

Up to 10 agents

Unlimited x402 spend

Advanced analytics

Slack integration

Real-time alerts

Priority support

30-day transaction history

Enterprise

Custom/pricing

Unlimited agents

Custom policies

SLA support

SOC2 compliant

Custom integrations

Dedicated success manager

Unlimited transaction history

Trusted by 500+ Teams

See what developers are saying about Agent Firewall.

  • Saved us from a $12,000 accident when our agent hit a recursive loop. This tool is absolutely essential.
    Sarah Chen

    CTO, AI Startup

  • Essential day-one infrastructure. Should be mandatory for any x402 agent deployment.
    Michael Rodriguez

    Lead Engineer, TechCorp

  • Finally, I can sleep at night knowing our agents have proper financial guardrails in place.
    Jessica Kim

    Founder, AgentLabs

    FAQs

    We've got the answers

    Everything you need to know about protecting your agents from overspending.

    You can set up SmartProxy in under 3 minutes. Simply replace your x402 endpoint, configure your spending limits, and deploy. Your agents are immediately protected with real-time monitoring and hard spending caps.

    When your agent reaches the configured spending limit, all x402 transactions are immediately blocked. You'll receive instant alerts via your preferred channels (email, SMS, Slack), and the agent will receive proper error responses to handle gracefully.

    No performance impact. SmartProxy adds less than 5ms latency to x402 requests and uses a globally distributed network for optimal speed. Your agents will perform exactly the same while being protected from runaway costs.

    Absolutely! You can assign unique spending limits to each agent, set department-level budgets, and create custom policies based on agent types or use cases. Each agent gets its own protection profile with independent monitoring and alerts.

    We maintain 99.9% uptime with global redundancy across multiple cloud providers. In the unlikely event of an outage, you can instantly switch back to direct x402 endpoints. Enterprise customers get failover options and SLA guarantees.

    • Real-time spending breakdown by agent, API, and time period
    • Cost attribution to specific customers or projects
    • Performance metrics including response times and success rates
    • Anomaly detection for unusual spending patterns
    • Exportable reports for accounting and optimization

    Yes, we're SOC2 Type II compliant with enterprise-grade security. All transaction data is encrypted in transit and at rest. We only store metadata necessary for monitoring and never access your actual API request/response content. You maintain full control over your data.

    Yes! SmartProxy integrates with popular tools like Datadog, New Relic, Grafana, PagerDuty, and Slack. We provide webhooks, REST APIs, and pre-built integrations to connect with your existing infrastructure and workflow.

    Still have questions?

    Our security team is here to help you protect your agents effectively.

    Join 500+ TeamsWho Never Worry About Runaway Agents

    Get started in 3 minutes. No credit card required.
    Agent Protection
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    We're building essential tools that sit between AI agents and autonomous payments, ensuring agents never overspend while enabling instant API monetization.

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