multi-platform-crosspost

name: multi-platform-crosspost description: Automatically cross-post blog content to 7+ platforms (LinkedIn, Dev.to, Hashnode, Twitter/X, Reddit, Substack, Pinterest) with tracking, deduplication, and platform-specific formatting. Production-tested pipeline. tags: [cross-posting, content-distribution, seo, blog, linkedin, devto, hashnode, automation, marketing] author: mhmalvi version: 1.2.0 license: CC BY-NC-SA 4.0 metadata: clawdbot: emoji: "📡" requires: n8nCredentials: [google-sheets-oauth2, smtp, linkedin-oauth2] os: [linux, darwin, win32]

Multi-Platform Cross-Post Pipeline 📡

Automatically distribute your blog content across 7+ platforms with a single command. Built for Hugo blogs but adaptable to any static site generator or CMS.

Problem

You write a great article. Then you spend 45 minutes manually posting it to LinkedIn, Dev.to, Hashnode, Reddit, Substack, and Twitter. Every. Single. Time.

This skill eliminates that entirely.

What It Does

1. Takes a blog post slug as input
2. Fetches the full article content from your blog admin API
3. Formats content for each platform (HTML → Markdown, character limits, image handling)
4. Posts automatically to platforms with API access (Dev.to, Hashnode, LinkedIn)
5. Emails formatted content for platforms without API (Twitter, Reddit, Substack)
6. Tracks all cross-posts in Google Sheets (deduplication via slug + source matching)
7. Handles auth, rate limits, and error recovery

Supported Platforms

Architecture

Blog Post Published
    │
    ▼
Webhook Trigger (n8n)
    │
    ├── Validate auth (_secret)
    ├── Fetch post content from blog-admin API
    ├── Parse frontmatter + body
    │
    ├──► IF LinkedIn enabled → Format + Post via API
    ├──► IF Dev.to enabled → Format + Post via API
    ├──► IF Hashnode enabled → Format + Post via API
    ├──► IF Pinterest enabled → Format + Pin via API
    ├──► IF Twitter enabled → Format + Email to owner
    ├──► IF Reddit enabled → Format + Email to owner
    └──► IF Substack enabled → Format + Email to owner
    │
    ▼
Google Sheets Tracker (appendOrUpdate, no duplicates)

Required n8n Credentials

You must create these credentials in your n8n instance before importing:

Configuration Placeholders

Replace these placeholders in the workflow JSON before deploying:

Quick Start

1. Prerequisites

• n8n instance (v2.4+)
• Blog with an API endpoint that returns post content
• Google Sheets OAuth2 credentials
• Platform API keys (at least one)

2. Configure Platforms

Set your API credentials in the workflow's Platform Config node:

{
  "devto_api_key": "your-dev-to-api-key",
  "hashnode_token": "your-hashnode-token",
  "hashnode_publication_id": "your-pub-id",
  "linkedin_credential_id": "your-linkedin-oauth-id"
}

3. Set Up Tracking Sheet

Create a Google Sheet with columns:

• slug (text) — Post identifier
• source (text) — Blog name (for multi-blog support)
• date (date) — Cross-post date
• platforms (text) — Comma-separated list of platforms posted to
• status (text) — success/partial/failed

4. Trigger

# Via webhook
curl -X POST https://your-n8n.com/webhook/blog-crosspost \
  -H "Content-Type: application/json" \
  -d '{"slug": "my-article", "lang": "en", "platforms": "all", "_secret": "your-secret"}'

# Or via blog admin (auto-triggers on first publish)

Platform-Specific Formatting

Dev.to

• Converts HTML to Markdown
• Adds canonical URL pointing to original
• Maps categories to Dev.to tags (max 4)
• Prepends cover image

Hashnode

• Markdown with frontmatter
• Canonical URL backlink
• Tag mapping to Hashnode tags
• Publication-scoped posting

LinkedIn

• Plain text with line breaks (no markdown)
• Truncated to 3,000 chars
• Includes link to full article
• Hashtag injection from tags

Pinterest

• Creates pin with featured image
• Title from post title
• Description from meta description
• Link to original article

Deduplication

The tracker uses Google Sheets appendOrUpdate with matching on slug + source. This means:

• First post → creates new row
• Re-trigger same slug → updates existing row (no duplicates)
• Different blogs with same slug → separate rows (source differentiates)

Multi-Blog Support

Run multiple blogs through the same pipeline by setting different source values:

• Blog A: source: "my-tech-blog"
• Blog B: source: "my-business-blog"

Each gets tracked separately in the same sheet.

Use Cases

1. Solo blogger — Write once, distribute everywhere
2. Content agency — Manage cross-posting for multiple client blogs
3. SEO strategy — Build backlink network across 7 platforms automatically
4. Newsletter growth — Each platform drives subscribers to your newsletter

Requirements

• n8n v2.4+ (self-hosted or cloud)
• At least one platform API key
• Google Sheets API credentials
• Blog admin API or file system access to post content

Tips

• Start with Dev.to + LinkedIn (highest ROI, easiest setup)
• Add platforms incrementally
• Monitor the tracking sheet for failed posts
• Canonical URLs prevent duplicate content penalties
• Schedule cross-posts 1-2 hours after original publish for better engagement