Post to Facebook from Grok
Grok is the AI assistant at grok.com and in the Grok apps. Connectors let it use outside services, and a custom connector adds your own MCP server, such as Kreatix. A video posted as a Reel on your Facebook Page, or a text-only Page post.
Connect Grok to Kreatix
Sign in with Kreatix
No key to copy: paste the address, sign in to Kreatix and press Allow.
- Open grok.com/connectors.
- Click New Connector, then select Custom.
- Enter https://api.kreatix.cc/mcp as the MCP server URL.
- Complete the sign-in: sign in to Kreatix and press Allow.
- Ask in a chat. Grok finds Kreatix's tools on its own.
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.
- Open grok.com/connectors, click New Connector, then select Custom.
- Paste the address with your key as the MCP server URL: https://api.kreatix.cc/mcp/YOUR_KEY
https://api.kreatix.cc/mcp/YOUR_KEYWhat Grok can do on Facebook
A video posted as a Reel on your Facebook Page, or a text-only Page post.
| Setting | Values | Needed | What it does |
|---|---|---|---|
media_url | URL | No | The video, posted as a Reel: a link from your Kreatix library or a public YouTube, TikTok, Instagram or Facebook post. Leave it out for a text-only post. |
caption | string (max 5000) | No | The Reel's description, or the whole post when there is no video. A text-only post needs it. |
cover_url | URL | No | Set as the Reel's cover once Facebook has finished processing the video. If that takes too long, the cover is skipped. |
Ask in plain words
A chat message at grok.com. For example: "Which of my pages got the most views this week?" Grok calls Kreatix when the question is about your pages.
- Post this on my Facebook page tomorrow at 9:00: We're open this Sunday from 10:00 to 18:00.
- Share this Instagram Reel link on all my Facebook pages tonight at 20:00.
- Cancel the Facebook post planned for Friday.
Facebook rules to know
- Videos go out as Facebook Reels.
- A text-only post needs a caption.
- The cover is added after Facebook finishes processing the video; if that takes too long, it is skipped.
- When Facebook blocks a post as spam (code 368) or hits a rate limit, Kreatix does not retry: retrying makes the block worse.
- Kreatix posts to the Facebook Pages you manage.
Tips for Grok
- Grok reaches Kreatix from its own servers over the internet, so nothing has to run on your computer.
- After you connect, Grok discovers Kreatix's seven tools by itself. Ask in plain words; you don't need tool names.
- 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 Facebook from Grok?
Connect Grok to Kreatix once, as shown above. Then ask it to post: name your Facebook pages or a page group, the video or text and the time. Grok shows you the plan and posts after you say yes.
Can the agent post text without a video to Facebook?
Yes. Leave media_url out and the caption goes out as a Page post. Facebook, LinkedIn and X are the networks that take text-only posts.
Does a Facebook video go out as a Reel or a regular video?
As a Reel. Kreatix uploads it through Facebook's Reels flow and, if you gave a cover, sets it once Facebook has finished processing the video.
What if Facebook blocks the post as spam?
Kreatix does not send it again on its own, because repeating is what Facebook's block (code 368) punishes. The post shows as failed with Facebook's reason, and the fix is to wait.
Can my agent post to 20 Facebook Pages at once?
Yes: up to 50 pages in one schedule_post call, or a whole group with group_id. Each page counts as one post toward the key's hourly limit, 100 an hour by default.
Do I need a paid Grok plan?
Grok's docs say connectors are available to all Grok users. On Grok Business and Enterprise, a team admin first provisions the connector in the cloud console. Scheduling posts still needs a paid Kreatix plan or a running trial.
I made a new Kreatix key. How do I update Grok?
On the key route, the key is part of the address. Remove the Kreatix connector in Grok and add it again with the new address, 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.
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