AI agent
Grok + CatCaster
Fast drafting in Grok chat
Use Grok for quick takes and hooks; CatCaster enforces platform rules through validate_post before anything schedules.
Example chat
via CatCaster MCP · Grok
How to connect Grok
- If your Grok product supports MCP, add the CatCaster server URL as a custom connector.
- Sign in with CatCaster OAuth and approve workspace access.
- Ask Grok to list_channels before assuming a platform is connected.
- Confirm write tools require your explicit approval in the client UI.
CatCaster MCP server URL
https://www.catcaster.com/api/mcp
OAuth sign-in is recommended. Developer API keys in Settings → Developer work for clients that cannot open the browser consent flow. Keep a human in the loop before publish_post and send_inbox_reply.
What you can do with Grok
Real-time hooks
Turn breaking news into draft X posts with fast iteration in chat.
Tone experiments
Multiple create_post variants, compare validate_post results.
Schedule later
schedule_post so Grok-planned posts go out while you are offline.
Thread planning
Draft multi-part X content as separate posts or a single master with placements.
Channels agents can reach
Example prompts
- What did we publish last week? Use list_published_content.
- Suggest three headlines for LinkedIn from this blog paragraph.
Agents should run validate_post and show drafts before scheduling or publishing. CatCaster MCP does not generate images or video—attach media the agent already has via upload_media or HTTPS URLs on create_post.
Frequently asked questions
- Is CatCaster preinstalled in ChatGPT or Claude?
- No. You add CatCaster as a custom MCP connector (or use OAuth from a client that supports remote MCP). Sign in with your CatCaster account when the client opens the consent flow.
- Will the agent publish without asking me?
- CatCaster expects a human in the loop. Agents should run validate_post and show drafts before schedule_post or publish_post. Inbox send_inbox_reply should only run after you explicitly approve the draft.
- Can agents generate images or video inside MCP?
- Not through CatCaster MCP today. Agents can attach media they already have via upload_media (HTTPS URL) or URLs on create_post. Image and video generation in the product UI is separate from MCP.
- What platforms can agents reach?
- Any channel already connected in your workspace—Instagram, Facebook, Threads, TikTok, LinkedIn, X, YouTube, Pinterest, and your CatCaster blog, subject to each platform’s API limits documented on our platform guides.