Domain Filtered Research

Ask a research question using Perplexity web search, restrict search to your chosen domains, and request sources published within the last month. The result contains the first answer and its citation URLs.

Setup and use

In Open Flow, connect Perplexity in Research with Perplexity. Use Run and supply:

{
  "user_prompt": "What are the differences between n8n and Make?",
  "domains": "n8n.io, make.com",
  "system_prompt": "Answer using retrieved sources and distinguish facts from uncertainty."
}

user_prompt and domains are required. domains is a comma-separated list of domains or URL prefixes; surrounding spaces and empty entries are removed. Optional system_prompt supplies research instructions. The request uses sonar and a fixed month publication-recency filter.

In n8n, edit the same fields in Set Params. Configure a Header Auth credential in Perplexity Request with name Authorization and value Bearer YOUR_PERPLEXITY_API_KEY, then use Execute Workflow. Keep the key in the credential.

Each run makes one synchronous research request and returns output and citations. If the service omits citations, the list is empty. Missing answer text or a failed request stops the run. There are no automatic retries, stored conversations, or publishing steps.

The template uses Perplexity’s legacy Sonar-compatible completion route. Perplexity may rewrite these requests to its newer service; model behavior and sampling can change. Domain and publication-recency filters constrain search, and do not prove every generated statement. Check the answer against the cited sources before using it.

Changes to the source

• Trim domain filters and validate the research question before requesting an answer.
• Build the request as a JSON object so quotes and line breaks in prompts remain valid.
• Use neutral research instructions as the editable default.
• Preserve the answer’s citation list and handle an omitted list.
• Replace credential identities and outdated model notes with reusable setup instructions.

Adapted from Query Perplexity AI from your n8n workflows in enescingoz/awesome-n8n-templates.

Source collection notice: © 2024–2026 Enes Cingoz, CC BY 4.0. The source export does not identify a separate template author or license. See repository licensing for the scope of OOMOL contributions and third-party material.