x402-solana 2.0.0

Complete x402 Protocol Implementation for Solana

x402-solana: Complete x402 Protocol Implementation for Solana

Version 2.0.0

The x402-solana SDK provides a dominant, end-to-end implementation of the HTTP 402 Payment Required protocol, enabling seamless, autonomous, and instant payments on the Solana blockchain using USDC.

This library is designed for both clients (autonomous agents) that need to pay for resources and servers (APIs/services) that need to monetize their endpoints.

✨ Features and Hackathon Category Coverage

The SDK is structured to address all five hackathon categories:

Category	Component	Description
1. Agent Identity & Reputation	AgentRegistry, IdentityVerifier	Decentralized identity and reputation scoring for agents using Solana wallet as the root of trust.
2. Agent-to-Agent Marketplace	A2AMarketplace, ServiceOrchestrator	Advanced P2P marketplace for agents to discover, request, and trade services with automatic payment handling.
3. MCP Servers	MCPPaymentServer, AgentMCPServer	Model Context Protocol integration, allowing AI models (e.g., GPT, Claude) to use paid tools and services autonomously.
4. SDKs & Infrastructure	PaymentRouter, PaymentCache, BatchProcessor	High-performance infrastructure components for routing, caching, and batching x402 payments.
5. Practical AI Applications	AIToolkit, AIAssistant, AITrader	Specialized AI agent frameworks built on the core protocol, demonstrating real-world payment use cases.

🚀 Quick Installation

pip install x402-solana
# For optional multi-chain support via CDP (Coinbase Developer Platform)
pip install x402-solana[cdp]