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.
The graded MCP registry: live-probes every remote server in the official registry (initialize, tools/list, schema quality, latency, provenance) and publishes evidence-backed grades — searchable by agents via its own MCP endpoint at mcpqueen.com.
AI agent discovery and marketplace on Nostr with Solana payments (SOL, USDC). NIP-89 discovery, NIP-90 jobs, NIP-44 v2 encryption, on-chain micropayments.
Quality signal
41/100 (Fair)
51/100 (Fair)
Install path
npx · low
npx · high
Engagement
0 0 0 0
2 0 0 12
Tools
Not listed yet
Decentralized agent discovery via NIP-89Job marketplace with NIP-90 data vending machinesEnd-to-end encryption using NIP-44 v2On-chain Solana payments with native SOL transfersMCP protocol integration for agent interoperabilityAgent skills compatible with agentskills.io format