x-post

X/Twitter Post

Create and schedule posts to X (Twitter) using the Publora MCP server. Supports text posts, images (up to 4), videos, and automatic thread splitting for long-form content.

Prerequisites

Plans: Requires a paid plan (X API costs are passed through). Current limits and pricing: publora.com/pricing.

Important: X/Twitter is NOT available on the free Starter plan due to Twitter API costs.

Getting Started

1. Create account at publora.com/register
2. Choose Pro or Premium plan (X/Twitter requires paid plan)
3. Connect X/Twitter via OAuth in Publora Dashboard
4. Get an API key at app.publora.com/dashboard/api, only if your agent cannot sign in with OAuth or you will use the REST API fallback below
5. Connect your agent to the MCP server at https://mcp.publora.com/mcp:
   • Upgrading a manual connection without /mcp: Claude treats https://mcp.publora.com as a different server from the bundled one. Change that existing connection to https://mcp.publora.com/mcp in its current scope, preserving its authentication and chosen account; sign in again if requested. Alternatively, verify the bundled connection uses the intended account, then remove only the old manual entry. Do not add a second entry or delete credentials automatically.
   • Publora tools already available (the publora-skills plugin or the Publora connector in Claude): nothing to set up. Claude asks you to sign in to Publora the first time a tool runs.
   • Agents that support OAuth (Claude Code, Cursor, and the Claude and ChatGPT apps): add the server by URL and sign in, no API key needed. In Claude Code, add it and then run /mcp to sign in:

claude mcp add --transport http --scope user publora https://mcp.publora.com/mcp

• Agents without OAuth: send the API key as Authorization: Bearer sk_YOUR_API_KEY:

claude mcp add --transport http --scope user publora https://mcp.publora.com/mcp \
  --header "Authorization: Bearer sk_YOUR_API_KEY"

Claude Desktop, Cursor, Codex, OpenClaw and the claude.ai connector each need a different config file or flow: see client setup for the exact path and snippet.

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": ["twitter-123456789"],
    "content": "Your tweet content",
    "scheduledTime": "2026-03-25T10:00:00Z"
  }'

Platform ID Format: twitter-{id} (e.g., twitter-123456789)

📖 Docs: docs.publora.com

Platform Limits

Feature	API Limit	Notes
Characters	280	Emojis count as 2 characters
Images	Up to 4	Auto-converted to PNG (max 1000px width)
Video duration	2 min 20 s (140 s)	Publora validates X videos at 140 s
Video size	512 MB	MP4, MOV formats
Threading	Automatic	Content over 280 chars split with (1/N) markers

Character Counting

X has specific character counting rules that Publora handles automatically:

• Standard characters = 1
• Emojis = 2 characters
• URLs counted by literal length
• Thread markers reserve 10 characters per tweet

Auto-Threading

When content exceeds 280 characters, Publora automatically creates a connected thread:

1. Content split at paragraph breaks, then sentence boundaries, then word boundaries
2. Each part numbered with (1/N), (2/N) format
3. Tweets connected via X's reply_to_id parameter

Manual Thread Breaks

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

This is my first tweet in the thread.

---

This is my second tweet in the thread.

---

And this is my third tweet!

Available Tools

create_post

Create a new X/Twitter post or thread.

Parameters:

• platforms: Array with your X connection ID (e.g., ["twitter-12345678"])
• content: Post text (auto-threads if over 280 chars)
• scheduledTime: ISO 8601 UTC datetime. Optional: omit it and the post is created as a draft. Send a future time to schedule. A time five or more minutes in the past is rejected with SCHEDULED_TIME_IN_PAST, so for immediate posting use the current time plus a minute.
• mediaUrls: up to 10 public https image or video URLs. Publora downloads them server-side and attaches them before validation, so media and scheduling happen in one call. This is the one-shot alternative to the draft then get_upload_url then complete_media flow. Ingestion is rate-limited to 60 URLs per hour.

get_upload_url

Get presigned URL for media uploads.

Parameters:

• postGroupId: Post ID to attach media to
• fileName: File name (e.g., "image.png", "video.mp4")
• contentType: image/png, image/jpeg, video/mp4
• type: "image" or "video"

complete_media

Finalize a file uploaded through get_upload_url, after the presigned PUT succeeds. Optional, because scheduling also finalizes pending media, but calling it early surfaces format and probe errors before publish. Not needed for media attached with mediaUrls.

Parameters:

• mediaId: the id returned by get_upload_url

list_connections

List your connected accounts with their platform IDs. Call this first and copy the IDs verbatim; they are never guessable.

list_posts / get_post / update_post / delete_post

Manage scheduled and draft posts. update_post also patches content and platforms on a draft or scheduled post, so fixing a typo or retargeting no longer means delete and recreate. delete_media and prune_media_reference clean up uploaded files.

Examples

Simple Tweet

Post this to X:
"Just shipped our new API documentation. Check it out!"

Tweet with Images

Post this to Twitter with screenshots of the new dashboard:
"Before and after our redesign. What do you think?"

Note: Up to 4 images allowed. All images auto-converted to PNG.

Long-Form Thread

Create a Twitter thread:
"Thread: 5 lessons from building our startup

---

1. Ship early, iterate fast. We launched with a buggy MVP and improved based on real feedback.

---

2. Talk to users daily. Our best features came from customer conversations.

---

3. Focus beats features. We killed 3 products to focus on the one that worked."

Scheduled Tweet

Schedule this for tomorrow at 9 AM:
"Monday motivation: Start before you're ready."

Important Restrictions

1. Pro plan required: X/Twitter is excluded from the free Starter plan due to Twitter API costs.

2. 140-second video limit: Publora validates X videos at 2 minutes 20 seconds (140 seconds). Longer videos fail validation.

3. Image auto-conversion: All images are converted to PNG (max 1000px width) before upload. Animated GIFs lose animation.

4. No image+video mix: A tweet can have images OR video, not both.

5. Media on first tweet only: In threads, images/video attach to the first tweet only.

Best Practices

Content

1. Hook in first line: Most engagement happens on the first tweet
2. Optimal thread length: 3-7 tweets for best engagement
3. Emoji awareness: Remember emojis count as 2 characters

Timing

• Best times: 8-10 AM, 12-1 PM, 5-6 PM in target timezone
• Frequency: 3-5 tweets per day for growth
• Threads: Post in morning for maximum visibility

Engagement

• Reply to comments within the first hour
• Quote tweet your own threads for visibility
• Use relevant hashtags (1-2 per tweet)

Troubleshooting

Error	Cause	Solution
"X/Twitter requires Pro plan"	Using Starter plan	Upgrade to Pro at publora.com/settings
"Content too long"	Over 280 chars and threading failed	Add manual --- breaks
"Video too long"	Over 140 seconds	Trim video to under 2 min 20 s
"Too many images"	More than 4 images	Reduce to 4 or fewer
"Rate limit exceeded"	X API limit reached	Wait and retry