Research-to-social post generator with Perplexity AI and Facebook Graph API

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

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...

Best for

Social Media automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.chattrigger, @n8n/n8n-nodes-langchain.toolworkflow, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.outputparserstructured, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.facebookgraphapi, n8n-nodes-base.set, n8n-nodes-base.stickynote

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by HoangSP.

Original n8n.io source

1.1 Workflow description

Title: Research-to-social post generator with Perplexity AI and Facebook Graph API
Workflow name: 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.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Chat Trigger

Type / Role: @n8n/n8n-nodes-langchain.chatTrigger - chatTrigger
Config choices: Version 1.1

Block 2 - Tool: Call Perplexity Researcher

Type / Role: @n8n/n8n-nodes-langchain.toolWorkflow - toolWorkflow
Config choices: Version 2.1

Block 3 - Agent: Topic + Research

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.8

Block 4 - Parser: Article JSON

Type / Role: @n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices: Version 1.2

Block 5 - LM: For Topic Agent

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 6 - LM: For JSON Extraction

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 7 - Agent: Extract JSON

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.8

Block 8 - Parser: Post Fields

Type / Role: @n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices: Version 1.2

Block 9 - LM: For Post Writer

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 10 - Agent: Create Post Content

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.8

Block 11 - Publish: Facebook Graph API

Type / Role: n8n-nodes-base.facebookGraphApi - facebookGraphApi
Config choices: Version 1

Block 12 - ⚙️ CONFIG (Set fields)

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 13 - Sticky: Overview

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Sticky: Chat Trigger

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 15 - Sticky: Agent: Topic + Research

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 16 - Sticky: Tool: Call Perplexity Researcher

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 17 - Sticky: Parser: Article JSON

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 18 - Sticky: Agent: Extract JSON

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 19 - Sticky: Parser: Post Fields

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 20 - Sticky: Agent: Create Post Content

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 21 - Sticky: LM: For Topic Agent

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 22 - Sticky: LM: For JSON Extraction

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 23 - Sticky: LM: For Post Writer

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 24 - Sticky: Publish: Facebook Graph API

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Showing the first 24 of 25 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Research-to-social post generator with Perplexity AI and Facebook Graph API
Complexity	advanced
Nodes	25
Categories	Social Media
Author	HoangSP
Published	17 Sept 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8664/8664.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Social Media workflows

Frequently asked questions

What does Research-to-social post generator with Perplexity AI and Facebook Graph API do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Social Media use case.

HoangSP

4 workflows

Nodes

@n8n/n8n-nodes-langchain.chattrigger @n8n/n8n-nodes-langchain.toolworkflow @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.outputparserstructured @n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.facebookgraphapi n8n-nodes-base.set n8n-nodes-base.stickynote

Complexity

advanced

Published 17 Sept 2025

Likes 0

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Install path: /data/workflows/8664/8664.json

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Research-to-social post generator with Perplexity AI and Facebook Graph API

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who’s it for

What it does / How it works

How to set up

Requirements

How to customize the workflow

Security

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Chat Trigger

Block 2 - Tool: Call Perplexity Researcher

Block 3 - Agent: Topic + Research

Block 4 - Parser: Article JSON

Block 5 - LM: For Topic Agent

Block 6 - LM: For JSON Extraction

Block 7 - Agent: Extract JSON

Block 8 - Parser: Post Fields

Block 9 - LM: For Post Writer

Block 10 - Agent: Create Post Content

Block 11 - Publish: Facebook Graph API

Block 12 - ⚙️ CONFIG (Set fields)

Block 13 - Sticky: Overview

Block 14 - Sticky: Chat Trigger

Block 15 - Sticky: Agent: Topic + Research

Block 16 - Sticky: Tool: Call Perplexity Researcher

Block 17 - Sticky: Parser: Article JSON

Block 18 - Sticky: Agent: Extract JSON

Block 19 - Sticky: Parser: Post Fields

Block 20 - Sticky: Agent: Create Post Content

Block 21 - Sticky: LM: For Topic Agent

Block 22 - Sticky: LM: For JSON Extraction

Block 23 - Sticky: LM: For Post Writer

Block 24 - Sticky: Publish: Facebook Graph API

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions