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🔶BNB Chain Native

Unibase X402 Facilitator

Enabling autonomous AI agents to seamlessly search, purchase, and pay on the blockchain

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Unibase x402 Facilitator

BNB Chain

By building as the inaugural X402 facilitator on BNB Chain, Unibase unlocks the ability for AI agents to autonomously search, purchase, and pay. It utilizes the chain's low-cost and high-efficiency to bridge intelligent automation and real-world commerce.

✨

Full x402 V2 Compatibility

Developers and agents can immediately leverage advanced features like payment monitoring and micropayments on a robust infrastructure.

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High-Frequency Micropayments

Enable real-time, low-cost transactions for AI agents and machine-to-machine commerce.

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Secure Payment Verification

Cryptographically signed payloads ensure tamper-proof payment processing.

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Multi-Network Support

Built on BNB Chain with low gas fees and high throughput for scalable payments.

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Agent-Ready Infrastructure

Purpose-built for autonomous AI agents to search, purchase, and pay independently.

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About x402

The x402 payment protocol is an HTTP-based payment protocol that enables developers running resource servers to accept payments from users using a variety of payment methods. Servers declare payment requirements for specific routes. Clients send cryptographically signed payment payloads. Facilitators verify and settle payments on-chain.

Version 2Critical Enhancements

Introduces support for high-frequency micropayments, real-time payment monitoring, and advanced gating capabilities. This evolution transforms x402 from a payment protocol into a comprehensive infrastructure for autonomous agent commerce.

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About XUSD

XUSD is an ERC-3009 compatible wrapped stablecoin for x402 payments on BNBChain, supporting 1:1 wrap or unwrap to USDC anytime.

Supported Assets:XUSDEIP-3009 Tokens

V2 Capabilities

Advanced features for the machine economy

✓Verify Payments
✓Settle Payments
📊Monitor Payments
🚪Payment Gating
💰Micropayments

API Reference

Compare V1 and V2 API features

CategoryAPI V1API V2
Base URLhttps://api.x402.unibase.com/v1https://api.x402.unibase.com/v2
Supported Networks
BSC mainnetBSC testnet
BSC mainnetBSC testnet
Payment Schemesexactexact
Supported AssetsXUSDEIP-3009 Assets
Capabilities
Verify PaymentsSettle Payments
Verify PaymentsSettle PaymentsMonitor PaymentsPayment GatingMicropayments
Methods
GET /verify
POST /verify
GET /settle
POST /settle
GET /health
GET /supported
GET /verify
POST /verify
GET /settle
POST /settle
GET /health
GET /supported

Ready to get started?

Integrate x402 payments into your AI agent infrastructure today.

Learn MoreAPI Documentation