"Shields.io" matching MCP connectors:

Universal pay-per-call tool API for AI agents. Web search, price feeds, hive memory, LLM routing, code sandbox. Free tier (10 calls/day, no signup). x402 payments on Base + Solana.

Generate a Flutter app from a JSON spec free; pay only for the compiled APK (USDC on Base).

Protects AI coding agents from installing malicious open source packages. Every npm and PyPI package is checked against SafeDep’s real-time threat intelligence before installation.

Hot Module Reload (HMR) for Python with reactive programming and MCP tools