Content Publisher

Publish content to Medium, Dev.to, and Hashnode from markdown files. Handles formatting, SEO optimization, scheduling, and cross-posting with canonical URLs. Use when asked to publish articles, blog posts, or cross-post content across platforms.

Publish markdown articles to Medium, Dev.to, and Hashnode. Handles SEO, formatting, and canonical URLs for cross-posting.

Supported Platforms

Platform	Method	Auth
Medium	Browser automation	Google login
Dev.to	API	API key in env DEVTO_API_KEY
Hashnode	API	API key in env HASHNODE_TOKEN

Workflow

1. Prepare content

Ensure article has:

• Title (H1)
• Subtitle/description
• Tags (3-5 relevant tags)
• Content body (markdown)
• Optional: cover image URL

2. SEO optimization checklist

Before publishing, verify:

• Title contains target keyword (under 60 chars)
• Meta description (under 155 chars)
• H2/H3 structure with keywords
• Internal/external links
• Alt text on images
• Call-to-action at end

3. Publish to Medium (browser)

1. Navigate to https://medium.com/new-story
2. Paste title and content
3. Click "Publish" → set tags → confirm

4. Publish to Dev.to (API)

curl -X POST https://dev.to/api/articles \
  -H "api-key: $DEVTO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "article": {
      "title": "TITLE",
      "body_markdown": "CONTENT",
      "published": true,
      "tags": ["ai", "productivity"],
      "canonical_url": "MEDIUM_URL"
    }
  }'

5. Publish to Hashnode (GraphQL)

curl -X POST https://gql.hashnode.com \
  -H "Authorization: $HASHNODE_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "mutation { publishPost(input: { title: \"TITLE\", contentMarkdown: \"CONTENT\", publicationId: \"PUB_ID\", tags: [{slug: \"ai\"}] }) { post { url } } }"
  }'

Cross-posting strategy

1. First: Publish on Medium (or your primary platform)
2. Wait 24-48h: Let search engines index the original
3. Cross-post: Use canonical_url pointing to the original
4. Why: Avoids duplicate content penalties in SEO

Publication submission (Medium)

To get more reach, submit to Publications:

1. Find publication's "Write for us" page
2. Follow their submission guidelines
3. Submit via Medium's story settings → "Add to publication"

High-traffic AI Publications

• Towards AI (AI/ML focused)
• Better Programming (dev tools)
• The Startup (business/tech)
• Geek Culture (tech general)
• Level Up Coding (programming)

Batch publishing

For multiple articles, process sequentially with delays:

• Medium: max 2 articles per 24 hours
• Dev.to: no strict limit, but space them 1+ hours apart
• Hashnode: no strict limit