Live on Base L2 · x402 Protocol

The Payment Rail
Built for AI Agents

AgentPay lets AI agents, devices, and apps pay each other autonomously — per-request, in USDC, on Base L2.
No subscriptions. No banks. No humans required.

Get Your API Key → Read the Docs
$0.02
Per settlement
<2s
Settlement time
98%+
You keep of revenue
Base L2
USDC · EIP-712
Three Payment Rails

Everything your agent needs to pay and get paid

Each rail is live, open, and built on the x402 standard. Pick what you need — or use all three.

x402 Facilitator

Standard Payments

The core x402 payment rail. Agents attach a signed grant to any HTTP request — we verify, settle USDC on Base L2, and return 200. One call. Done.

EIP-712 USDC Escrow ● Live
View Docs → Get API Key
NEW
🔒
Private x402 Rail

Stealth Payments

Pay privately. On-chain observers see only a hash commitment and a one-time stealth address — no payer, no payee, no amount. Built for enterprise and confidential agent workflows.

Commit-Reveal Stealth Address AES-256 ● Live
View Docs → Try API
BETA
🎙️
x402 Voice Rail

Voice Payments

Call an AI agent and pay per second in USDC. Push-to-talk interface with <2s latency. Human-to-Agent at $0.22/min. Agent-to-Agent at $0.09/min. Self-hosted, zero API costs.

Push-to-Talk $0.22/min WebRTC ⚡ Beta
View Docs → Try an Agent
🟢 Live on Base L2 mainnet
<2s average settlement
🔒 EIP-712 signed grants
🌐 5 chains supported
💰 $0.02 flat fee · Free to register
Live Network Activity

Real settlements, settling right now

Every row below is an actual x402 settlement processed by our facilitator — pulled live from the settlement ledger. Not a mockup.

Facilitator Settlement Feed
Merchant panel →Members panel →Treasury on BaseScan ↗
Loading live settlements…
Trusted by early network participants
🌐
Tate Programs
Early x402 Provider
● LIVE
🤖
AgentWorld
99+ AI Agents · Base L2
● LIVE
🚀
Your Project
Register free today
Get API Key →
How It Works

One endpoint.
The whole network.

Register once. Your device, agent, or business can now send and receive USDC from any other endpoint on the network — with escrow protecting every transaction.

01
🔌

Register an Endpoint

A business, device, AI agent, or autonomous system registers with a single API call. We assign it a wallet and identity on-chain.

POST /api/register-endpoint
02
🔏

Sign a Grant + Send

Every API request carries an EIP-712 signed Agent Grant in the X-402-Payment header. The grant defines budget, agent address, and expiry — payment settles atomically with the request, no pre-authorization needed.

X-402-Payment: <base64(grant + EIP-712 sig)>
03
🔒

Escrow Protects Both Sides

Funds are held in escrow until the service is confirmed delivered. No chargebacks. No fraud. No intermediary holding your money.

status: escrowed → released
04

Instant Settlement

On confirmation, USDC settles to the provider wallet in under 2 seconds. No invoices. No net-30. No banks.

settled: $0.001 USDC → Base
Real-World Use Cases

Built for the machines
already running your world

Every one of these already has an API. They just need a payment layer.

🚗 Autonomous Fleet Charging

EVs negotiate charging slots and pay autonomously across competing networks — no driver, no app, no account.

Transportation

🛒 Autonomous Shopping

A personal agent compares prices, negotiates with seller APIs, and completes the purchase — all within a single payment-wrapped request.

Retail

🔧 B2B Service Bookings

Businesses expose a service endpoint. Other businesses — or their agents — book and pay in one atomic call. No invoicing cycle.

B2B Commerce
Who Registers

If it has an API,
it belongs on the network

We assign every endpoint a wallet and identity. Humans, agents, devices, and businesses — same protocol, same escrow.

🤖

AI Agents

Claude, GPT, custom agents — any agent that needs to pay for data, APIs, or services

🏪

Small Businesses

Expose your services as an API endpoint and get paid instantly by agents or other businesses

🚗

Autonomous Devices

EVs, drones, IoT sensors — any machine that needs to transact without human intervention

🏢

Enterprises

Supply chain, logistics, B2B — replace net-30 invoicing with atomic settlement per transaction

👤

Personal Agents

Your AI represents you — books, buys, and negotiates on your behalf with your pre-approved limits

The Protocol

HTTP 402 — Payment Required

Built on the x402 open standard. One extra header and any API becomes a paid service. Works with every language, framework, and platform.

// Any API call becomes a paid transaction
POST https://api.yourbusiness.com/service
X-402-Payment: <base64(EIP-712 grant + sig)>
X-AgentPay-Endpoint: your-endpoint-id
 
// Response on success
200 OK
X-402-Receipt: 0xb1b645a6...settled
⚡ Pricing

Simple. Transparent. Agent-First.

Free to register. Humans integrate via docs. Agents pay atomically per call.

👤 For Humans / Builders
Free
Register & integrate — no cost
✓  Free endpoint registration
✓  Docs, SDK, OpenAPI
✓  $0.02/settlement on Base L2
View Docs →
🤖 For AI Agents (x402)
$0.02
per settlement • Base L2 • atomic
✓  EIP-712 signed grants
✓  Settles in <2 seconds
✓  No subscription needed
Agent Quickstart →
Registration
$0
Register any agent, device, or business endpoint. Free forever.
Base L2 Settlement
$0.02
Flat fee per successful USDC settlement. ~$0.0004 gas included.
Other Chains
Free
ETH, Optimism, Arbitrum, Polygon — no AgentPay fee. Pay gas only.
🤖 How agents pay — x402 in one header
POST https://api.yourservice.com/endpoint
X-402-Payment: <base64(EIP-712 grant + sig)>
X-AgentPay-Endpoint: your-endpoint-id
 
// Settles $0.02 USDC atomically on Base L2 → 200 OK
🚀 Register Free → View Docs
Get Started

Register Your Endpoint.
Join the Network.

Every business, agent, and device that registers becomes part of the x402 network. Discoverable. Payable. Autonomous.

👩‍💻

Developer / Business

Register your service, get an API key, and start earning from the revenue pool

Get API Key →
🤖

AI Agent

Autonomous agents self-register with one curl call — no browser, no human needed

View Agent Onboarding →
🚗

Device / IoT

Give any hardware a wallet and identity on-chain — EVs, drones, sensors

Get Started → Same as Agent

Free to register · $0.02 per settlement on Base L2 · No monthly fees

📰 Deep Dive · Architecture
Technical Deep Dive
The A2A Escrow with Message Protocol
One atomic HTTP request — money and instruction, inseparable. How Coinbase, Circle, and Stripe can power the AI agent economy. Published on Cryptocurrency Network.
Read the full analysis → crypto-currency-network.net ↗
Chat with Aria
🤖

Aria

x402 AgentPay · AgentWorld Guide

Hey! I'm Aria 👋 I'm the AI guide for both x402 AgentPay and AgentWorld. Ask me anything about machine payments, agent registration, x402 protocol, or our agent economy!