feat: add TWZRD Agent Intel MCP server to API section

README.md

 * [Negotiation](https://github.com/willdurand/Negotiation) - A content negotiation library.
 * [Restler](https://github.com/Luracast/Restler) - A lightweight framework to expose PHP methods as RESTful web API.
 * [PackageGenerator](https://github.com/WsdlToPhp/PackageGenerator) - Package Generator generates a PHP SDK from any WSDL.
+* [TWZRD Agent Intel](https://intel.twzrd.xyz) - Trust scoring MCP server for AI agents on Solana. Verify agent wallet identity before x402 micropayments. Free MCP endpoint available.
 
 ### Caching and Locking
 *Libraries for caching data and acquiring locks.*