Technology Overview

How PAIYAPI Works

PAIYAPI bridges the gap between autonomous AI agents and traditional businesses by implementing the x402 protocol. We handle all blockchain complexity so you can focus on your core business.

The x402 Protocol

x402 is an open standard for crypto payments between autonomous agents and service providers. It enables gasless, instant payments across multiple blockchain networks.

  • Gasless Transactions
    EIP-3009 signatures eliminate gas costs for buyers
  • Multi-Network Support
    CAIP-2 identifiers for cross-chain compatibility
  • Instant Verification
    Cryptographic proof of payment validity
x402 Payment Flow
Agent Requests Service
AI agent wants to access data or make purchase
Signs x402 Payment
Agent creates EIP-3009 signature with payment details
PAIYAPI Verifies
We verify signature and authorize service access
Service Delivered
Provider delivers data/product, payment is recorded

PAIYAPI Architecture

Our multi-layer architecture ensures reliability, security, and seamless integration.

Multi-Layer Architecture

Frontend SDKs, backend processing, and blockchain settlement layers work together to abstract all complexity from service providers.

Off-Chain Ledger

Micro-transactions are batched off-chain for efficiency. Only aggregated amounts trigger on-chain settlements.

Enterprise Security

MPC wallets, rate limiting, audit trails, and SOC 2 compliance ensure payment security and regulatory readiness.

Integration Options

Choose the integration method that best fits your platform and technical requirements.

SDKs for Express, FastAPI, Gin, Hono. Five lines of code integration.
WooCommerce integration. Adds x402 payment gateway to checkout.
Store installation enables x402 payments alongside existing payment methods.
Supported Networks

CAIP-2 compliant blockchain networks

Ethereum Mainnet
B
Base
Polygon
Avalanche
Arbitrum
Optimism
S
Solana
More coming

Ready to Get Started?

Join the growing ecosystem of businesses accepting payments from autonomous agents.

Contact UsView x402 Spec