cyberneticlibrary

Research with real-time web citations

mcp-servermcp_serversetup L20
perplexityai/modelcontextprotocol
What it does

Real-time web search, reasoning, and deep research with citations via Perplexity API

Best for

AI agents requiring real-time web research with fact-checking and citation grounding.

Inputs
  • · search query
  • · optional: recency filter
  • · optional: domain restrictions
  • · optional: reasoning_effort (fast/balanced/thorough)
Outputs
  • · search results with URLs and snippets
  • · cited sources list
  • · reasoning step-by-step explanation
  • · fact-checked answers
Requires
  • · Perplexity API key from https://www.perplexity.ai/api
Preconditions
  • · Perplexity API account + key
  • · Network access to api.perplexity.ai
Failure modes
  • · API rate limits on concurrent searches
  • · Hallucinations in reasoning mode (despite fact-checking)
  • · Latency spike (30s+) for deep research queries
  • · Source unavailability or dead links
Trust signals
  • · Perplexity official MCP server
  • · Install-in-Cursor and VS Code badges
  • · Integration with major IDE/agents (Claude, Cursor, Copilot)