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.
Run a Shopstr / NOSTR marketplace storefront from an agent: create and update stalls and products in both the NIP-15 dialect (kind 30017/30018) and the Shopstr-modern dialect (kind 30019 shop + kind 30402 NIP-99 listings), including the Shopstr cache POST that makes cards actually render. 7 tools. npx -y marketplace-mcp.
LinkedIn for AI assistants over an authenticated browser session — profiles, people/job/company search, feed, messaging, and gated writes (connect, message, post, react, comment) returned as structured JSON, with built-in rate limiting. npx -y linkedin-mcp-tools.