The Payment Rail for the Autonomous AI Economy.

Turn your API into a vending machine for AI agents. Implement the x402 protocol with one line of code and accept instant USDC micropayments on Base.

Official Infrastructure Partner:

Coinbase

|Building on BASE

x402 Protocol Flow

// Developer Integration Example
function handleApiRequest(req) {
  if (!hasPayment(req)) {
    // AgentX402 Middleware Challenge
    return new Response(402, { 
      'X-Payment-Required': 'USDC/Base/0.001' 
    });
  }
  // Grant Access
  return processRequest(req);
}

Simplified view of the HTTP 402 challenge and instant payment verification.

Why AI Agents Need x402.

AI agents cannot use credit cards or pass KYC. The future is machine-to-machine micropayments via HTTP 402. We provide the bridge.

Erik Reppel, Head of Engineering at Coinbase Developer Platform, explaining the x402 explosion.

The Agent-to-API Handshake.

1. The Request.

The AI Agent requests your premium API endpoint. Your server checks for payment headers.

2. The 402 Challenge.

If unpaid, AgentX402 middleware generates a standardized HTTP 402 response requesting USDC.

3. Instant Settlement.

The agent signs the transaction wallet-to-wallet on Base. AgentX402 verifies proof-of-payment instantly and grants access.

Built for Builders.

True Micropayments.

Charge $0.0005 per LLM token or API call. Viable only due to Base L2's sub-cent gas fees.

No Accounts Needed.

Agents don't need to sign up or log in to your service. They just pay and consume.

Cryptographic Verification.

Payments are verified on-chain before resource delivery. Say goodbye to chargebacks.

Instant Fiat Off-ramps.

Leverage our Coinbase partnership to easily convert your collected USDC revenue into USD.

Tokenized Pricing for the Autonomous Economy.

Choose the infrastructure tier that aligns with your decentralized vision and scaling requirements.

Agent Starter

Bootstrap your integration with foundational x402 capabilities.

Free

Decentralized Identity (DID) Integration
Up to 1,000 Autonomous Transactions/day
Standard Base L2 Settlement
Community Support Channel Access

Autonomous Developer

Scale your machine-to-machine monetization with high-throughput rails.

$99/mo / month

Unlimited Scalable Throughput
Hyper-Efficient Batch Settlement
Tokenized Access Control (TAC)
Priority Developer Support (SLA)
Advanced Analytics Dashboard

Decentralized Infrastructure

Tailored solutions for high-volume, mission-critical AI ecosystems.

Custom

Zero-Knowledge Proof (ZKP) Verification
Dedicated Node Deployment
Custom Fiat Off-Ramp Solutions
Enterprise-Grade Security Audits
24/7 Dedicated Engineering Support