AI agent

ChatGPT + CatCaster

Plan and schedule from the browser

Turn ChatGPT into a scheduling copilot: it discovers your connected channels, writes platform-native copy, and queues posts in CatCaster while you stay in the chat.

Example chat

Schedule a short upbeat post to X and LinkedIn for tomorrow at 9am about our beta. Validate first and wait for my OK before publishing.
I listed your channels, drafted both posts, and ran validate_post—no errors. Ready to schedule for 9:00 AM tomorrow when you confirm.

via CatCaster MCP · ChatGPT

CatCaster — Calendar
Scheduled posts land on your CatCaster calendar and publish on time.

How to connect ChatGPT

  1. On chatgpt.com (web), enable Developer mode under Settings → Security and login if you use a custom MCP connector.
  2. Open Settings → Connectors → Add connector, paste the CatCaster MCP URL, and save.
  3. When ChatGPT connects, complete CatCaster sign-in and approve workspace access in the browser.
  4. In a new chat, enable the CatCaster connector and ask to list channels before scheduling anything.

CatCaster MCP server URL

https://www.catcaster.com/api/mcp

ChatGPT custom connector 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 ChatGPT

  • Week-ahead calendar

    Ask for a content plan across your channels; the agent validates each draft and schedules only after you confirm times.

  • Launch announcements

    Ship coordinated posts to X and LinkedIn with different hooks, using get_brand_context so tone matches your workspace.

  • Draft-only mode

    Keep everything in create_post and validate_post until you are ready—no publish_post until you say so.

  • Performance check-ins

    Pull get_analytics and list_published_content to summarize what worked last week before planning the next.

Channels agents can reach

Connect accounts once in CatCaster. Agents post only to channels already linked in your workspace.

Example prompts

  • List my connected channels and draft three Instagram captions from this bullet list. Do not schedule until I pick one.
  • Review new content proposals in my workspace and summarize which ones fit our launch theme.

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.

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