"An exploration of deep search technologies or methods" 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.

40+ developer tools from Context7, Code Runner, Python Execute, NPM Sentinel, PlantUML, and Microsoft Learn. Docs lookup, code execution, security scanning. Starts at $0.01/call. Get your API key at app.xpay.sh or xpay.tools

Precision math engine for AI agents. 203 exact methods. Zero hallucination.

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

Personal assistant MCP server with search, execute, packages, jobs, secrets, and integrations.

Reasoning, code, anti-deception, memory harness MCP tools. Stdio or HTTPS api.ejentum.com/mcp

An MCP server for Arcjet - the runtime security platform that ships with your AI code.