Side-by-side comparison of two Model Context Protocol servers — install paths, tools, quality signals, and directory engagement so you can pick the right one for Claude, Cursor, and other MCP clients.
URL fetcher and HTML-to-markdown converter with three-layer prompt injection defense: pre-extraction sanitization of hidden/off-screen elements and non-printing Unicode, 15-pattern risk scanning (HIGH/MEDIUM/OK), and per-request session-salt content boundary wrapping.
Zero-knowledge proof generation MCP server for AI agents. Lets agents prove identity claims (Coinbase KYC, Country, Google OIDC, Google Workspace, Microsoft 365) without revealing personal information. Server-side proving in AWS Nitro Enclave TEE, paid via x402 USDC on Base. Built on Noir circuits (Aztec) and ERC-8004 agent identity. Reference application OpenStoa won 1st place at The Synthesis Hackathon ("Agents That Keep Secrets" track).