Schedule tweets and threads
Write a post or a thread once, fit it to X's 280 characters, and schedule it next to everything else you're posting this week.
Cancel anytime · or self-host for free
One draft, cut to fit X
Available channels
Customize per channel
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What Postbase does on X
- Characters
- 280 per post, counted live as you type
- Threads
- Up to 25 posts, published in order as replies
- Media
- Images and video, uploaded through X's API
- Also posts to
- LinkedIn, Bluesky and Mastodon from the same draft
Threads without the copy-paste
Add posts to a thread in the composer and reorder them by dragging. Postbase publishes each one as a reply to the last, in order.
Plan, write and post in one place
Schedule tweets from the calendar, from the built-in agent, or from Claude and other AI tools.
Your week, on one calendar
Your tweets sit on the same calendar as every other network. Click an open slot to write a post for that time.
Ask for a post, get it scheduled
Tell the built-in agent what you want to say. It writes the X cut, keeps it under 280 characters and schedules it.
Here's a version for each channel, sized to fit. It's set for the time you asked.
list_channelsSee connected accounts and their platforms.create_postDraft or schedule a post/thread to any channels.list_scheduledReview what's queued to publish.cancel_postPull a scheduled post before it goes out.Or let Claude post to X
Connect Claude, Cursor or another MCP client and it can schedule X posts for you, straight from the chat.
How to schedule tweets
Three steps, and the first one you only do once.
- 1
Connect X
Open Channels in Postbase, pick X and approve access on X's own sign-in screen. Postbase never sees your password.
- 2
Write the post
Open the composer and write once for all your channels, then switch to the X tab to change the wording just for X. Click Add post to turn it into a thread.
- 3
Pick a time and schedule
Choose a date and time, or start from an open slot on the calendar. Postbase publishes it on time and retries if the network has a hiccup.
Post to X from your AI tools
Add the Postbase MCP server to the AI tool you already use and ask it to schedule posts for you.
Frequently asked questions
Can I schedule a thread on X?
Yes. Add up to 25 posts to a thread in the composer. Postbase publishes the first post at the scheduled time and each following post as a reply to the one before.
Can I schedule tweets with images or video?
Yes. Attach images or a video in the composer, or pick them from your media library. Postbase uploads them to X when the post goes out.
Can I post the same thing to X and Bluesky?
Yes. Pick both channels, write once, then open the Bluesky tab if you want different wording there. X allows 280 characters per post and Bluesky 300.
Can AI schedule my tweets?
Yes. Use the Postbase agent inside the app, or connect Claude, Cursor or another MCP client and ask it to schedule posts for you. Everything it schedules shows up in your calendar first.
Is there a free trial?
Yes. Every plan starts with 7 days free and includes every network, the MCP server and the API. Or self-host the open-source version for free with your own API keys.
Every network you post to
- LinkedIn
Posts up to 3,000 characters with images and a first comment.
- Bluesky
Posts and threads up to 300 characters, with up to 4 images.
- Mastodon
Posts and threads on any instance, up to 500 characters.
- TikTok
Videos and photo posts with captions and privacy settings.
- YouTube
Videos and Shorts with a title and description.
- InstagramComing soon
Posts, carousels and Reels.
- FacebookComing soon
Page posts with photos.
- ThreadsComing soon
Posts and threads.
From the blog
Automate social media posts with n8n (X, LinkedIn, Bluesky, Mastodon)
Build n8n workflows that post to X, LinkedIn, Bluesky and Mastodon through the Postbase API, from RSS, a blog or a form, with drafts to review.
27 September 2026 · 3 min read
GuidesHow to schedule tweets on X (and threads)
How to schedule posts on X from the web composer, where to find them afterwards, the limits of X's built-in scheduler, and how to schedule whole threads.
27 September 2026 · 2 min read
GuidesHypefury dropped X. Here's how to keep scheduling tweets and threads
Hypefury no longer supports X. Your options for scheduling tweets and threads now, and how to move your queue without posting anything twice.
27 September 2026 · 2 min read
Ready to get started?
Plan next week's tweets in one sitting. Postbase fits each post to every network and publishes it on time.
Cancel anytime · or self-host for free
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