Threads Post

Threads Post

Create and schedule posts on Meta's Threads using the Publora MCP server. Supports auto-threading for long content, image carousels (2-10 images), and reply control settings.

Prerequisites

Plans: Free Starter (15 posts/month), Pro, Premium

Getting Started

1. Create account at publora.com/register (free)
2. Connect Threads via Instagram OAuth in Publora Dashboard
3. Get API key at publora.com/settings/api
4. Configure MCP in Claude Desktop (~/.claude/claude_desktop_config.json):

{
  "mcpServers": {
    "publora": {
      "type": "http",
      "url": "https://mcp.publora.com",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

REST API Fallback

If MCP is unavailable, use the REST API directly:

Base URL: https://api.publora.com/api/v1

Authentication: x-publora-key header

# Get connected platforms
curl -X GET "https://api.publora.com/api/v1/platform-connections" \
  -H "x-publora-key: sk_your_api_key"

# Create a post
curl -X POST "https://api.publora.com/api/v1/create-post" \
  -H "x-publora-key: sk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "platforms": ["threads-12345"],
    "content": "Your post content",
    "scheduledTime": "2026-03-25T10:00:00Z"
  }'

Platform ID Format: threads-{id} (from /platform-connections)

📖 Docs: docs.publora.com

Plan Limits

| Plan | Posts/month | Price | |------|-------------|-------| | Starter | 15 | Free | | Pro | 100/account | $2.99/account/month | | Premium | 500/account | $9.99/account/month |

Platform Limits

| Feature | Limit | |---------|-------| | Characters per post | 500 | | Hashtags | 1 per post maximum | | Links | 5 per post maximum | | Images per carousel | 2-10 | | Image size | 8 MB | | Image formats | JPEG, PNG (WebP auto-converted) | | Video duration | 5 minutes | | Video size | 500 MB | | Video formats | MP4, MOV | | Posts per day | 250 | | Replies per day | 1,000 |

Available Tools

create_post

Create a new Threads post or thread.

Parameters:

• platforms: Array with your Threads connection ID (e.g., ["threads-12345"])
• content: Post text (auto-threads if over 500 chars)
• scheduledTime: ISO 8601 datetime (required - for immediate posting, use current time + 1 minute)

getuploadurl

Get a presigned URL to upload images.

listposts / updatepost / delete_post

Manage your scheduled and draft posts.

Auto-Threading

When content exceeds 500 characters, Publora automatically creates a connected thread:

1. Smart splitting: Content is split at paragraph breaks (\n\n), then sentence boundaries (. , ! , ? ), then word boundaries
2. Auto-numbering: Each part gets (1/N), (2/N), etc. at the end
3. Reply chain: Posts are connected using Threads' reply_to_id parameter

Manual Thread Breaks

Use --- on its own line to force a thread break:

This is my first post in the thread.

---

This is my second post in the thread.

---

And this is my third post!

Or use explicit markers [1/3], [2/3], [3/3] (square brackets are preserved as written).

Reply Control

Control who can reply to your posts via REST API platformSettings:

| Value | Description | |-------|-------------| | "" (empty) | Default platform behavior (anyone can reply) | | "everyone" | Explicitly allow anyone to reply | | "accounts_you_follow" | Only accounts you follow can reply | | "mentioned_only" | Only mentioned accounts can reply |

Note: platformSettings is not available via MCP - use REST API for reply control.

Important Restrictions

1. Single hashtag limit: Threads allows maximum 1 hashtag per post. Additional hashtags are ignored by the platform.

1. No post editing: Once posted, Threads posts cannot be edited via API. Delete and repost if needed.

1. Video carousels not supported: Publora's carousel implementation supports images only. Standalone video posts work normally.

1. Multi-threaded posts temporarily unavailable: Content splitting into multiple connected replies is temporarily disabled. Single posts and carousels continue to work.

Examples

Simple Text Post

Post this to Threads:
"Just discovered an amazing productivity hack that saved me 2 hours today. The key is batching similar tasks together."

Image Carousel

Create a Threads carousel with these 5 product evolution screenshots.
Caption: "From concept to launch - our 6-month journey. #buildinpublic"

Note: Requires 2-10 images. Videos in carousels are not supported.

Long-Form Thread

Create a Threads thread from this content:
"Thread: 7 mistakes I made as a first-time founder

---

1. Hiring too fast. We went from 2 to 15 in 3 months. The culture suffered.

---

2. Ignoring unit economics. Revenue felt great until we calculated CAC..."

Scheduled Post

Schedule this for tomorrow at 10 AM:
"Monday motivation: The best time to start was yesterday. The second best time is now."

Best Practices

1. Hook first: First 2 lines determine engagement - make them count
2. Optimal length: 100-250 characters for single posts perform well
3. Native content: Original, conversational posts are rewarded
4. Single hashtag: Use one highly relevant hashtag (platform limit)
5. No edit option: Double-check content before posting

Timing

• Best times: 7-9 AM, 12-1 PM, 7-9 PM in target timezone
• Frequency: 1-3 posts per day for growth
• Consistency: Regular posting signals active account

Engagement

• Reply to comments within first hour
• Cross-reference your Instagram (accounts are linked)
• Use relevant topics/keywords for discovery

Troubleshooting

| Error | Cause | Solution | |-------|-------|----------| | "Account not connected" | Threads/Instagram OAuth expired | Reconnect via Publora dashboard | | "Content too long" | Post exceeds 500 chars and threading failed | Manually add --- breaks | | "Media upload failed" | Wrong format or size | Check: images < 8 MB, JPEG/PNG only | | "Carousel requires 2-10 items" | Wrong number of images | Ensure 2-10 images for carousel | | 250 posts/day exceeded | Rate limit reached | Wait 24 hours |

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: publora
• Source: publora/skills
• License: MIT

Install and usage instructions live in the source repository linked above.