OAuth for the Perplexity API MCP Server

Connecting an assistant to Perplexity's search now works by signing in, instead of pasting an API key.

You add the server address to your client, sign in with your Perplexity account, choose an organization, and approve
The connection gives the assistant real-time web search, deep research, and advanced reasoning
It exposes three tools: perplexity_ask, perplexity_research, and perplexity_reason
Those tools run on Perplexity's Agent API, a single endpoint covering multiple model providers