Overview
Overview
Sigwei enables blockchain payments over HTTP using the x402 protocol. Send gasless USDC transfers and monetize APIs without blockchain infrastructure complexity.
Core Features
Gasless USDC Transfers: Send USDC on Base blockchain without gas fees
PayGate System: Create payment-protected proxy links for API monetization
x402 Protocol: HTTP 402 (Payment Required) responses with blockchain payment verification
API-First: Pure backend service with comprehensive REST API endpoints
Multi-Network: Base Mainnet and Base Sepolia Testnet support
Target URL Verification: HMAC and plaintext authentication modes for forwarded requests
Enterprise Security: JWT authentication, structured error responses, comprehensive validation
Target Use Cases
API providers monetizing endpoints for both human developers and AI agents
Micropayments for content and file access via programmatic transfers
Automated payment workflows for machine-to-machine interactions
Developers needing simple blockchain payment integration
Quick Start
New to Sigwei? Start with our Getting Started guide to begin using the API.
Need Help?
Check out our Support & Resources section for troubleshooting and additional resources.
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