How to connect Postiz to Claude Cowork

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Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Postiz account to Cowork via Composio Connect, enabling it to schedule a LinkedIn post for next Monday, get analytics for your last Facebook post, list all scheduled posts for this week, and more such actions on your behalf without compromising your account security.

Also integrate Postiz with

Connecting Postiz to Claude Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Cowork

4. Connect your Postiz account

Back in Cowork, ask the agent to connect to Postiz or give it any Postiz-related task.

For example, ask Cowork to:

  • "Schedule a LinkedIn post for next Monday"
  • "Get analytics for your last Facebook post"
  • "List all scheduled posts for this week"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Postiz account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Postiz through MCP without you sharing account credentials directly with the agent.

What is the Postiz MCP server, and what's possible with it?

The Postiz MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Postiz account. It provides structured and secure access so your agent can perform Postiz operations on your behalf.

Supported Tools & Triggers

Tools
No tools available

Available tools and triggers

After setup, the supported Postiz tools and triggers listed on this page are available to Cowork through Composio Connect.

You can now ask Cowork to handle Postiz workflows in natural language, from quick summaries and drafting tasks to more complex multi-step work across connected apps.

How to build Postiz MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Postiz MCP?

With a standalone Postiz MCP server, the agents and LLMs can only access a fixed set of Postiz tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Postiz and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Claude Cowork?

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Postiz tools.

Can I manage the permissions and scopes for Postiz while using Tool Router?

Yes, absolutely. You can configure which Postiz scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Postiz data and credentials are handled as safely as possible.

Used by agents from

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Agent.ai
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Context
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