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.
Lightning-paid Nostr signing MCP server. AI agents pay sats per call to sign and publish Nostr events — no API keys, just Lightning. Live at https://mcp.jorgenclaw.ai/sse. Tools: nostrsignevent (2 sats), nostrpublishevent (3 sats).
MCP server for Substack — read posts, manage drafts, publish Notes, get comments, and upload images. Safe by design: cannot publish or delete posts.