AI agent
Grok Build + CatCaster
Coding-agent style task chains
Grok Build behaves like a coding agent: multi-step tasks against tools. CatCaster is the publishing backend.
Example chat
via CatCaster MCP · Grok Build
How to connect Grok Build
- Configure Grok Build with remote MCP access to the CatCaster URL.
- Complete OAuth or supply an API key for non-interactive sessions.
- Encode human approval between validate_post and schedule_post in your task template.
- Avoid unattended publish_post in production cron jobs.
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 Build
Build + announce
After a build task, draft release posts referencing changelog entries.
Task templates
Reusable Grok Build flows for weekly proposal review.
Error handling
Surface validate_post errors back into the build log for fixes.
Vs Grok chat
Build chains steps; Grok chat is better for ad-hoc copy tweaks on one draft.
Channels agents can reach
Example prompts
- Chain list_content_proposals → create_post_from_proposal for ID I provide.
- Export a JSON summary of next week’s list_calendar entries.
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.