"Understanding Integrated Knowledge Graphs" matching MCP connectors:

8 pay-per-call web intelligence tools for AI agents: detect a site's tech stack and track stack changes, check domain health, extract structured data or clean markdown from any URL, turn sitemaps into knowledge bases, analyze Shopify and Zid stores. Free discovery + pricing_info; paid calls $0.01-0.02 in USDC on Base via x402 — pay only for successful runs.

Diffbot MCP — Knowledge Graph company enrichment + web content extraction (diffbot.com)

Scrape Google search results with SERP data, ads, and knowledge panels

The Dappier MCP server connects LLMs and AI agents to real-time, rights-cleared, proprietary data from trusted sources across various domains. It provides specialized knowledge through real-time web search, financial stock market and crypto data access, AI-powered content recommendations from premium publishers, and structured outputs with sub-300ms response times, enabling AI systems to respond to current events and trends.

Driflyte MCP server which lets AI assistants query topic-specific knowledge from web and GitHub.