Research-to-Social Post Generator with Perplexity AI and Facebook Graph API

Who’s it for Teams that want to turn a chat prompt into a researched, ready-to-post social update—optionally published to Facebook.

What it does / How it works Chat Trigger receives the user prompt Topic Agent optionally calls a research sub-workflow for fresh sources Outputs are validated into a structured JSON Post Writing Agent crafts a concise Vietnamese post (Optional) Facebook Graph API publishes to your Page

How to set up Connect OpenAI & Facebook in Credentials (no API key inside nodes). In Tool: Call Perplexity Researcher, set your research workflowId. In Publish: Facebook Graph API, set your Page ID and edge. Adjust prompts/tone and the LANGUAGE in CONFIG. Test the flow with sample prompts in the chat.

Requirements n8n (Cloud or self-hosted) OpenAI API key (stored in Credentials) Facebook Page publish permissions (Optional) a research workflow for Perplexity

How to customize the workflow Add moderation/review gates before publishing. Duplicate the publish path for other platforms. Store outputs in Sheets/Notion/DB for auditing. Tune model choice & temperature for your brand voice.

Security Avoid hardcoding secrets in HTTP or Code nodes. Keep identifiers (Page IDs, workflowIds) configurable in CONFIG.