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SmartPost AI — Multi-Platform Content Generation Studio

An automated AI content syndication pipeline built on n8n and powered by Groq (llama-3.3-70b-versatile). It converts a single seed idea into four platform-tailored content formats—LinkedIn Post, Twitter/X Thread, Instagram Caption, and SEO Blog Outline—and automatically logs the generated assets to a Google Sheets CRM.

Visuals & Studio Dashboard

Workflow Canvas

SmartPost AI Workflow

Studio Dashboard

SmartPost AI Dashboard

Interactive Studio Interface

This project includes a content generation studio interface with live tab switching, local bookmarks, generation history, and real-time webhook connectivity:

  • SmartPost AI Studio: Open SmartPost AI UI
    • Glassmorphic interface with custom brand voice selector (Professional & Bold, Witty / Viral, Educational & Detailed, Motivational & Gritty, Sarcastic & Funny, Minimalist & Clean).
    • Four dedicated output cards with copy-to-clipboard and bookmarking support.
    • Generation history stored in browser localStorage.
    • Connects to the local webhook endpoint at http://localhost:5678/webhook-test/generate-content (or production URL).

How It Works

SmartPost AI executes parallel AI generation across multiple platform-specialized prompts simultaneously, aggregates the output via custom JavaScript, stores the record in a spreadsheet CRM, and returns a unified JSON payload to the user interface.

flowchart TD
    A[Web Studio UI: POST /generate-content] --> B[Webhook Node]
    B --> C[Set Idea & Tone Variables]
    C --> D1[Groq: LinkedIn Ghostwriter Node]
    C --> D2[Groq: Twitter/X Viral Thread Node]
    C --> D3[Groq: Instagram Caption Strategist Node]
    C --> D4[Groq: SEO Blog Outline Node]
    D1 --> E[Combine Results: Code Node]
    D2 --> E
    D3 --> E
    D4 --> E
    E --> F[Google Sheets: Append Content Log]
    E --> G[Respond to Webhook: Send JSON to UI]
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Step-by-Step Execution Breakdown

1. Ingestion & Parameter Extraction

  • Webhook Endpoint: The Webhook node receives a JSON payload containing idea and tone.
  • Set Idea: The Set node normalizes and stores the input variables for downstream parallel consumption.

2. Parallel Multi-Model Generation (Groq LPU)

  • LinkedIn Post: Generates founder-style thought leadership with a strong opening hook, clean line spacing, and a discussion question.
  • Twitter Thread: Constructs a 5-part threaded breakdown numbered 1/, 2/, ..., 5/ with a punchy hook, key insights, and a conclusive takeaway.
  • Instagram Caption: Writes an engaging 2-paragraph value post with contextual formatting, natural call-to-action, and relevant hashtags.
  • Blog Outline: Produces an SEO-optimized blog structure including an H1 title, meta description, and organized H2/H3 section headers.

3. Data Aggregation & Persistence

  • Combine Results (Code Node): A JavaScript script scans previous node responses, extracts each platform's generated copy, and constructs a structured payload with a timestamp.
  • Google Sheets CRM Sync: The Save to Sheets node appends a new record to the Content Log sheet with columns: Main Idea, Brand Voice, LinkedIn Post, Twitter Content, Instagram Caption, Blog Outline, and Generated At.
  • Synchronous Response: The Respond node returns the compiled JSON back to the frontend studio for display.

Tech Stack & Node Architecture

Component / Service Technology Purpose
Workflow Engine n8n Webhook management, parallel branch coordination, CRM sync
AI LLM Engine Groq (llama-3.3-70b-versatile) Parallel high-speed text generation across 4 distinct personas
Database / Logging Google Sheets API (n8n-nodes-base.googleSheets) Content repository and audit history log
Data Transformation n8n-nodes-base.code JavaScript data aggregation and response formatting
Studio UI HTML5, TailwindCSS, FontAwesome, JavaScript Web dashboard for content creators

Key Features

  • Simultaneous 4-in-1 Repurposing: Transforms a single prompt into LinkedIn, Twitter, Instagram, and Blog assets in one click.
  • Tone & Persona Adaptability: Supports 6 distinct brand voices configured directly in the frontend.
  • Automated CRM Logging: Saves all generated copy into Google Sheets with timestamps for team reuse and tracking.
  • Sub-Second Generation: High-throughput parallel inference powered by Groq LPUs.
  • Frontend Studio Application: Clean dashboard with history tracking, bookmarking, and instant output previews.

Setup & Configuration

Prerequisites

  1. An active n8n instance.
  2. A Groq API Key.
  3. A Google Cloud Console project with Google Sheets API enabled.

Import Steps

  1. In n8n, navigate to Workflows → Import from File.
  2. Select SmartPost Ai.json.
  3. Configure API Credentials:
    • In each of the 4 Groq HTTP Request nodes (LinkedIn Post, Twitter Thread, Instagram Caption, Blog Outline), set the Authorization header: 
      Bearer YOUR_GROQ_API_KEY
    • In the Save to Sheets node, connect your googleSheetsOAuth2Api credentials and specify your target Google Sheet ID.
  4. Activate the workflow and trigger generations via SmartPost AI.html.

Demo

  • LinkedIn Demo: TO_BE_ADDED