How to Post Directly to Social Media From Claude

Claude cannot publish to social media on its own. It has no access to your accounts. With the post bridge connector installed it can: text, images and video to 10 platforms, published now or scheduled, from a normal chat. This guide is the whole setup and the first three posts, with the exact prompts, the rules each platform enforces, and the fixes for the things that go wrong.

Add to Claude Create a post bridge account

About 10 minutes. Nothing to install. Updated September 2026.

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Pasting the brief into Claude gives it the connect steps, tools and platform rules. Agents can also read/claude/agent.md directly.

Connect your social accounts to post bridge

2 min, once

Create an account, then connect each profile from the dashboard. Every platform uses its official login, so you will see the normal Instagram, TikTok or Google permission screen. This is the only place your platforms are ever authorised. Claude talks to post bridge, never to the platforms.

Connect everything you might post to now. Adding an account later takes a minute and needs nothing redone on the Claude side.
Instagram needs a professional account (business or creator). Personal accounts cannot be posted to by any tool.
Facebook connects Pages, not personal profiles. YouTube connects the channel you pick in the Google screen.

Add the post bridge connector to Claude

1 min, once

Open post bridge in the Claude connector directory and hit Connect. A post bridge screen opens asking you to allow Claude to read and write posts. Allow it. The listing now shows "Connected", and it works in Claude on the web and in the desktop app.

The post bridge connector in the Claude directory, connected

Using Claude Code, or prefer to add it manually?

In Claude Code run claude mcp add --transport http post-bridge https://www.post-bridge.com/api/mcp/mcp. In Claude, go to Settings, Connectors, Add custom connector and paste https://www.post-bridge.com/api/mcp/mcp. Same tools, same sign-in. Full guide: posting from Claude Code.

Check Claude can see your accounts

30 sec

Start a new chat and ask for your accounts. This does two things: it confirms the connector is live in this chat, and it gives you the exact account names to use in every later prompt.

Prompt

"List my connected social accounts in post bridge."

You get a table of platform and handle. If you run more than one account on a platform, copy the handle you want into your prompts, for example "my @jackfriks Instagram". Otherwise Claude will stop and ask which one, every time.

Schedule a text post

1 min

The simplest case. Nothing to upload, so Claude calls the scheduling tool straight away.

Prompt

"Schedule this to my X and Threads accounts for tomorrow at 9am: "Shipped the thing. Three months of nights and weekends, live today.""

What happens

Claude asks you to allow each post bridge tool the first time it uses it. Allow once, or always.
It creates one post with your caption unchanged, on both accounts, scheduled for 9am tomorrow in your account timezone.
At 9am post bridge publishes to both and records a result per platform, with the live URL or the real error.

Claude scheduling a text post to X and Threads through post bridge

Say "now" instead of a time to publish immediately. Say "save as a draft" to review it in the dashboard first.

Want Claude to write the caption? Give it the brief and ask for drafts. Read them, then tell it which to schedule.

Post an image, or a carousel

1 min

Images need to reach post bridge first. Give Claude a public URL that points straight at the file and it uploads it for you. For files on your device, use the upload link in step 6, which takes a whole carousel in one drop.

Prompt

"Upload the image at https://example.com/launch.png and schedule it to Instagram and LinkedIn for Friday at noon with the caption "Launch day." Add #buildinpublic as the first comment on Instagram."

What happens

Claude downloads the image into your post bridge media library and gets a media id back.
It writes the caption exactly as given, sets the Instagram first comment, and schedules for Friday at noon.
At noon on Friday, Instagram and LinkedIn each publish through their official API and report back separately.

Claude scheduling an image post to Instagram and LinkedIn through post bridge

Carousels: give several URLs, or upload several files through the link in step 6, and ask for one post. Instagram takes up to 10, LinkedIn 20, Pinterest 5 with matching aspect ratios.

JPEG and PNG only. iPhone HEIC photos need exporting first.

Post a video from your phone or laptop

2 min

Video is the case every other guide skips. Files attached in a Claude chat do not reach the connector, and a video on your phone or laptop has no public URL to upload from. So post bridge gives Claude a way to ask you for the file directly.

Prompt

"I have a video on my laptop I want to post. Get me an upload link, then once it's in my library schedule it to TikTok, Instagram Reels and YouTube Shorts for tomorrow at 9am with captions tuned to each platform."

What happens

Claude requests an upload link and sends it to you. It works for 24 hours and takes files up to 500MB.
You open the link in any browser, on the phone the video is on if you like, and drop the file in. It lands in your post bridge media library.
Tell Claude it is uploaded. It finds the newest file, writes three captions, and schedules the post for 9am tomorrow.
At 9am post bridge publishes to all three platforms and records the result of each.

Claude asking for an upload link, then scheduling a video to TikTok, Reels and Shorts

The file goes from your device straight to storage. Nothing is re-uploaded through Claude, and formats are converted where a platform needs it. In Claude Code or Cowork, files of any size can also go straight from disk.

Drop several files at once for a carousel, then tell Claude how many you uploaded so it attaches all of them.

Want to add a trending sound on TikTok? Ask for a TikTok draft and it lands in your TikTok inbox to finish there.

Confirm what is scheduled and what published

30 sec

Two prompts worth using every time, because they are the difference between trusting the tool and knowing.

Prompt

"What do I have scheduled this week, and on which accounts?"

Prompt

"Did my last post publish everywhere? Show the result per platform."

Scheduled posts also appear in the post bridge calendar, where you can edit, move or delete them by hand. A post that failed on one platform still published on the others, and the per-platform result carries the actual error from that platform.

Platform rules Claude will run into

These come from the platforms, not from post bridge. Claude knows them and will tell you when a post cannot go somewhere, but it is faster to know before you ask.

Platform	Media	Worth knowing
X (Twitter)	Text, up to 4 images or 1 video	280 characters, or up to 25,000 with X Premium (has_x_premium on the account): without Premium, give X its own shorter caption when the main one is longer. Links are stripped from the tweet body. Put the link in the first comment instead.
Instagram	1 to 10 images or videos required	Reels, feed posts and Stories. First comment supported. A Story is exactly one file. Needs a professional (business or creator) account.
TikTok	1 video, or one or more images	Several images in one post publish as a photo carousel. Ask for a TikTok draft to finish in the app and add a sound before it goes live.
YouTube	Exactly 1 video required	Give it a title. Tags go in platform_configurations.youtube.tags. Shorts are just vertical videos.
LinkedIn	Text, up to 20 images, 1 video, or 1 PDF	A PDF becomes a native document carousel. Supports a first comment (linkedin.first_comment), a good place for a link.
Facebook	Text, images or video	Page posts and Page Stories. First comment supported.
Threads	Text, up to 20 images or videos	First comment supported.
Pinterest	1 to 5 images or 1 video required	Carousel images must share the same aspect ratio. Add a title and a destination link.
Bluesky	Text, up to 4 images or 1 video	Plain and simple.
Google Business	Text or a single image	No video.

Prompt cheat sheet: Claude as your social media manager

Plain sentences work. These are the shapes that map cleanly onto what the connector can do.

You want to	Say
See your accounts	"List my connected social accounts."
Publish right now	"Post this to my X account now: [text]"
Schedule for a time	"Schedule this to Instagram and LinkedIn for Friday at noon: [text]"
Use your queue	"Add this to my next free queue slot on Threads: [text]"
Draft for review	"Write three versions of this for X, LinkedIn and Threads and save them as drafts. Do not publish."
Image from a URL	"Upload the image at [URL] and post it to Instagram with the caption [text]"
Anything on your device	"Get me an upload link. I have 8 photos for a carousel."
Link on X	"Post this to X and put the link in the first comment: [text] [URL]"
TikTok with a sound	"Send this video to my TikTok drafts so I can add a sound before it goes out."
Check the queue	"What do I have scheduled this week, and on which accounts?"
Check a result	"Did my last post publish everywhere? Show the result per platform."
Read analytics	"Which of my posts got the most views in the last 30 days?"

Good habit: drafts first, review in the dashboard, then schedule. Claude writes, you approve, nothing publishes behind your back.

Troubleshooting

Claude says it cannot post, or does not mention post bridge

The connector is not enabled for this chat. Open the post bridge listing, confirm it shows Connected, then start a new chat and mention post bridge in your first message. In a Project, check the connector is switched on for that Project.

It asks which account to use

You have more than one account on that platform. Name the handle in the prompt, for example "my @jackfriks Instagram", and it stops asking.

The image or video URL did not work

The URL has to be public and point straight at the file, not a page that shows the file. Google Drive and Dropbox share pages will not work. For anything private or on your device, ask for an upload link instead.

HEIC photos from an iPhone are rejected

post bridge takes JPEG and PNG for images. Export as JPEG first, or drop the file in the upload link page, which accepts the same formats.

The post failed on one platform but not the others

Each platform publishes on its own, so one failing does not stop the rest. Ask Claude for the result per platform. It gets the real error back, for example a video that is too long for a Story, and can retry once you fix the cause.

It scheduled for the wrong hour

Times are read in the timezone saved on your post bridge account. Say the timezone in the prompt if you are travelling, or set it once in your dashboard settings.

Still stuck? Support is a human and usually answers within the hour.

Not using Claude?

ChatGPT

Same connector, listed as a plugin inside ChatGPT. Same guide.

Grokbot

Paste one prompt with the MCP URL, approve in the browser. Same guide.

Gemini

One config block in Gemini CLI, OAuth on first use. Same guide.

Claude Code

One command adds the MCP server, then post from the terminal.

Cursor and other MCP clients

Setup steps per client for the same MCP URL.

OpenClaw

Skill and plugin for OpenClaw agents that post on a schedule without you.

CLI for any agent

postbridge-cli wraps the same endpoints for shell scripts and agent frameworks.

REST API

Full API reference, for pipelines and cron jobs instead of chats.

And if you post a couple of times a week, drafting in Claude and pasting into a scheduler is honestly fine. The connector pays off when volume, multiple platforms or per-platform captions make you the copy-paste bottleneck.

Give this guide to Claude

Copies a short brief: how to connect if it has not yet, the tools, platform rules and what to do with common requests. Paste it into the chat.

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Frequently asked questions

Can Claude post to social media by itself?

No. Claude has no access to your social accounts on its own; it can only write content. With the post bridge connector installed, Claude can create, schedule and publish posts to 10 platforms using accounts you connected via OAuth, upload media, and read your analytics.

How do I connect post bridge to Claude?

Open post bridge in the Claude connector directory and click Connect, then approve access on the post bridge screen that opens. In Claude Code, run claude mcp add --transport http post-bridge https://www.post-bridge.com/api/mcp/mcp. Or add that URL as a custom connector under Settings, Connectors.

Can Claude post to Instagram and TikTok?

Yes, through the connector. post bridge publishes to Instagram, TikTok, YouTube, X, Facebook, LinkedIn, Pinterest, Threads, Bluesky and Google Business Profile using each platform's official API. Nothing is scraped or automated through a browser.

Can I attach a video from my phone or laptop in Claude and have it posted?

Not by attaching it to the chat. Files attached in a Claude chat do not reach the connector. Instead, ask for an upload link: Claude sends you a one-time link, you drop the file or files in from any browser, and they appear in your post bridge media library ready to post. It works for any size of video, and for a whole carousel of images at once. In Claude Code or Cowork, files of any size can also go straight from disk.

Can Claude schedule posts instead of publishing immediately?

Yes. Ask for a specific time, ask it to use your next free queue slot, or ask for drafts so you can review everything in the dashboard before it goes out.

Will this auto-generate and publish AI slop?

Only if you ask it to. The connector is the hands, not the brain. It posts your videos, your images and your captions, and if you want Claude to write, ask for drafts first and approve them yourself.

Does the same setup work in ChatGPT, Claude Code and Cursor?

Yes. The connector is a standard MCP server, so the identical URL works in ChatGPT, Claude Code, Cursor and any other MCP client. There is also a REST API and a CLI over the same endpoints for scripts.

What does it cost?

post bridge plans start at $39/mo for 15 connected accounts with unlimited posts, and the Claude connector is included on every plan. There is a 7-day free trial.

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