"Nexus Mods" matching MCP connectors:

Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual

DeFi Protocol Activity Index -- quantitative on-chain activity metric from DefiLlama data

Pay-per-call Solana token risk intelligence: 8 tools via x402. From $0.005 USDC, no API key.

Pay-per-call DNS/TLS truth and npm/PyPI breakage checks via x402. No account or API key.

Tether MiningOS bridge — site telemetry, paying demand, BTC to USDC settlement