AI agent

Cursor + CatCaster

Publish next to your codebase

Cursor agents discover CatCaster over OAuth when you add the remote MCP URL—no API key required for OAuth-capable setups.

Example chat

Using CatCaster MCP, draft a Threads post from the diff summary. Validate before any schedule.
Threads draft ready; validate_post returned no blocking issues. Share a time for schedule_post.

via CatCaster MCP · Cursor

CatCaster — Compose
Cursor drives MCP; CatCaster shows the result in your workspace UI.

How to connect Cursor

  1. Add the CatCaster server URL to .cursor/mcp.json (see snippet below) or Cursor Settings → MCP.
  2. When Cursor requests authentication, complete CatCaster browser sign-in and consent.
  3. In Agent mode, ask to list_channels before create_post.
  4. Settings → Developer in CatCaster documents OAuth and API key fallbacks.

CatCaster MCP server URL

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

Cursor (.cursor/mcp.json)

{ "mcpServers": { "catcaster": { "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 Cursor

  • Ship and announce

    Turn release notes in your repo into validated multi-channel posts without leaving Cursor.

  • Docs-driven threads

    Summarize a markdown doc into an X thread draft with validate_post per placement.

  • Blog + social

    Draft social teasers that link to posts you already published through CatCaster.

  • Inbox from IDE

    draft_inbox_reply for support-heavy launches; you send from CatCaster after review.

Channels agents can reach

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

Example prompts

  • What MCP tools does CatCaster expose? Summarize mutating tools that need my confirmation.
  • Create drafts for Instagram and Facebook from the same caption; validate both.

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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