"OpenAI's Web Retrieval Infrastructure" matching MCP connectors:

Scan, monitor and fix a live web app from your editor: graded security reports with fix prompts.

SimplyScanA

io.simplyscan

Security, SEO and AI-visibility scanner for web apps · free scans and focused checks via MCP.

Read-only smart-contract security intelligence for autonomous agents.

Agent rental platform: web-vuln scanning, OSINT and red-team tools via subscription.

Hyperion — MCP tool marketplace for AI agents: web, OSINT, security, research via one key.