— API ドキュメント
x402 Infrastructure API
Multi-chain USDC payment verification for your APIs. 99.9% uptime.
Overview
x402 Infrastructure provides a simple API for verifying USDC payments across multiple blockchains. Confirm that payments have been made before granting access to your APIs or services.
• Multi-chain support: Verify payments on Solana, Base, Ethereum, Polygon, and more
• Production-ready: 99.9% uptime SLA with sub-500ms response times
• Simple integration: RESTful API with Python and JavaScript SDKs
• Free tier: 1,000 verifications per month included
Base URL
https://api.kamiyo.ai/v1/x402Authentication
No API key required for basic usage. x402 is designed for AI agents and autonomous systems to verify payments without authentication barriers. Optional API keys provide higher rate limits and access to additional chains.
curl https://api.kamiyo.ai/v1/x402/verify \ -H "Content-Type: application/json" \ -d '{"tx_hash": "...", "chain": "solana"}'Rate Limits: Unauthenticated: 5 req/min, 50 req/hour (Solana & Base only). With API key: 10-2,000 req/min with access to all 8 chains. Get your API key from the x402 dashboard.
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