"Runrun.it" matching MCP connectors:

112 pay-per-call tools (security, finance, government data, FDA, BLS, web utilities), paid per call in USDC on Solana via x402. No API key needed. Official MCP Registry name: com.it.scorptech/x402. Homepage: https://scorptech.it.com/api/x402/docs

Check a deployed web app for security headers, SEO, accessibility and performance, with a grade.

Zero-install remote MCP server for proof-of-existence file attestation.

Daily Ed25519-signed security intelligence for AI-agent stacks; CVEs & advisories, paid via x402.