{"id":"gomcpgo-perplexity-mcp-server","name":"perplexity-mcp-server","af_score":68.0,"security_score":53.8,"reliability_score":35.0,"what_it_does":"Provides a Model Context Protocol (MCP) server (and CLI mode for testing) that lets LLM agents query Perplexity AI’s search capabilities (general web, academic, financial, and filtered search) and optionally cache results locally for later retrieval by ID.","best_when":"You want an LLM agent to perform tool-augmented internet research with citations and (optionally) local result caching.","avoid_when":"You cannot securely handle an external Perplexity API key or you need strong guarantees about data handling/compliance beyond what is documented.","last_evaluated":"2026-04-04T19:46:01.853978+00:00","has_mcp":true,"has_api":false,"auth_methods":["PERPLEXITY_API_KEY (environment variable)"],"has_free_tier":false,"known_gotchas":["Caching is not reused for identical queries (each search creates a new cached entry), which may cause unbounded growth if repeatedly called.","If the MCP client runs the server as a subprocess, ensure PERPLEXITY_API_KEY is available in that process environment.","Tool calls may be subject to Perplexity API rate limits; README mentions 429 but does not provide agent retry/backoff guidance."],"error_quality":null}