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Overview

The Problem: How do agents pay for API calls, compute resources, or data access automatically? Traditional payment systems require human intervention. The Solution: X402 protocol - Machine-to-machine micropayments using HTTP 402 Payment Required status code.

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How It Works

1. Agent calls API → 402 Payment Required (costs 100 credits)
2. Agent pays automatically via crypto wallet
3. Agent retries with payment proof → 200 OK + Data
Benefits: Pay-per-use, instant settlement, no human intervention

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Current Support

Base Sepolia Testnet ✅
  • Testing X402 payments on Base L2 testnet
  • USDC stablecoin for micropayments
  • Smart contract-based payment verification

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Use Cases

API Monetization - Pay-per-call pricing
Agent Services - AI inference, data processing
Resource Access - Compute, storage, bandwidth
Content Delivery - Premium data feeds

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Future Support

We’re testing and planning to support: Lightning Network - Fast Bitcoin micropayments
Interledger Protocol (ILP) - Cross-currency payments
Other L2 Networks - Optimism, Arbitrum, Polygon
Mainnet Support - Production-ready payments

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Status

🚀 In Progress - Testing on Base Sepolia, expanding to other networks

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What’s Next

  • Test - Try X402 on Base Sepolia testnet
  • Discuss - Share your payment use cases on Discord
  • Request - Need support for another network? Let us know