Post to X from Claude
Claude is Anthropic's AI assistant on claude.ai and in the Claude Desktop app. Custom connectors let it use outside tools such as Kreatix inside a normal chat. A text-only post or a video with text, cut to X's 280-character count.
Connect Claude to Kreatix
Sign in with Kreatix
No key to copy: paste the address, sign in to Kreatix and press Allow.
- Open Customize > Connectors (claude.ai/customize/connectors).
- Select Add, then Add custom connector.
- Enter Kreatix as the name and https://api.kreatix.cc/mcp as the server URL, then click Continue.
- Keep the authentication settings Claude marks Detected and finish with Add. Kreatix works with both "Use Claude's published identity" and "Register automatically".
- Click Connect, sign in to Kreatix and press Allow.
- In a chat, click + > Connectors and turn Kreatix on.
https://api.kreatix.cc/mcpWith a key
For setups without sign-in. The key works like a password, so keep it to yourself.
- In Kreatix, open Settings > AI agent and create a key. It is shown once.
- In Claude, open Customize > Connectors, select Add, then Add custom connector.
- Enter Kreatix as the name, paste the address with your key (https://api.kreatix.cc/mcp/YOUR_KEY) as the URL and click Continue.
- Under Authentication choose No sign-in, then click Add.
- If your dialog has a Request headers section (a beta for some organizations), you can use the plain address instead: choose No sign-in, pick authorization as the header and enter Bearer YOUR_KEY as its value.
- In a chat, click + > Connectors and turn Kreatix on.
https://api.kreatix.cc/mcp/YOUR_KEYWhat Claude can do on X
A text-only post or a video with text, cut to X's 280-character count.
| Setting | Values | Needed | What it does |
|---|---|---|---|
caption | string (max 5000) | No | The post text. Only the first 280 go, counted X's way: a link is 23, an emoji 2. A text-only post needs it. |
media_url | URL | No | One video to attach: a link from your Kreatix library or a public YouTube, TikTok, Instagram or Facebook post. Leave it out for a text-only post. |
Ask in plain words
A normal chat message in claude.ai or Claude Desktop, with Kreatix turned on under + > Connectors. For example: "Post this TikTok link to all my Instagram pages tomorrow at 18:00."
- Post this on X tomorrow at 10:00: Our spring sale starts Monday, 30% off everything.
- Share my newest video on X and LinkedIn tomorrow at 9:00 with the same caption.
- What do I have planned on X this week?
X rules to know
- Only the first 280 characters go to X, counted X's way: a link counts as 23 and an emoji as 2.
- A longer text is cut, not refused, and never in the middle of a link or an emoji.
- A text-only post needs a caption.
- get_stats has no numbers for X.
Tips for Claude
- Turn Kreatix on per chat under + > Connectors, and leave it off in chats that shouldn't touch your pages.
- One setup covers claude.ai and Claude Desktop, because connectors live in your Claude account. Claude Code sees it too when it is logged in with the same claude.ai account.
- Give Allow always only to the reading tools (list_channels, list_groups, list_posts, get_stats). Keep scheduling on ask, so you see the pages, caption and time first.
- The agent checks the pages, caption and time with you before it posts. It cannot delete pages, read messages or change your account, and you can remove it any time in Settings > AI agent.
Questions
How do I post to X from Claude?
Connect Claude to Kreatix once, as shown above. Then ask it to post: name your X pages or a page group, the video or text and the time. Claude shows you the plan and posts after you say yes.
What happens to a caption longer than 280 characters?
Kreatix sends the longest start that fits in 280, counted the way X counts: a link is 23 and an emoji 2. It never cuts a link or an emoji in half.
Can I post text only, without a video?
Yes. X, LinkedIn and Facebook take text-only posts. Leave media_url out and give a caption.
Can my agent read how my X posts did?
No. get_stats measures Instagram, Facebook, TikTok and YouTube; X, LinkedIn and Pinterest have no numbers in Kreatix.
Can I share a TikTok or YouTube video on X?
Yes. Give the agent the public link: Kreatix imports the video into your library first, then attaches it to the X post with your text.
Does it work on the free Claude plan?
Yes. Custom connectors work on Free, Pro, Max, Ultra, Team and Enterprise, and the Free plan allows one custom connector. On Team and Enterprise, an Owner first adds Kreatix under Organization settings > Connectors, then each member clicks Connect.
Can I switch from the key address to Sign in with Kreatix later?
Yes, but Claude can't change a connector's sign-in settings after you add it. Remove the connector, add it again with https://api.kreatix.cc/mcp, then delete the old key in Kreatix under Settings > AI agent.
Kreatix schedules one video to every page you run, each with its own platform settings.
Start free, then connect Claude