How to connect Postiz to Claude Cowork

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.

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Postiz

Api Key

Postiz is an agentic social media scheduling tool for managing and growing your online presence. It helps you schedule posts, capture leads, and build an audience—all powered by AI.

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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

ChatGPT OpenAI Agents SDK Claude Agent SDK Claude Code Codex OpenCode Cursor VS Code OpenClaw Hermes CLI Google ADK LangChain Vercel AI SDK Mastra AI LlamaIndex CrewAI

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.

FRAMEWORKS

How to build Postiz MCP Agent with another framework

ChatGPT

Use Postiz MCP with ChatGPT

OpenAI Agents SDK

Use Postiz MCP with OpenAI Agents SDK

Claude Agent SDK

Use Postiz MCP with Claude Agent SDK

Claude Code

Use Postiz MCP with Claude Code

Codex

Use Postiz MCP with Codex

Cursor

Use Postiz MCP with Cursor

OpenClaw

Use Postiz MCP with OpenClaw

Hermes

Use Postiz MCP with Hermes

CLI

Use Postiz MCP with CLI

Google ADK

Use Postiz MCP with Google ADK

LangChain

Use Postiz MCP with LangChain

Vercel AI SDK

Use Postiz MCP with Vercel AI SDK

Mastra AI

Use Postiz MCP with Mastra AI

LlamaIndex

Use Postiz MCP with LlamaIndex

CrewAI

Use Postiz MCP with CrewAI

OpenCode

Use Postiz MCP with OpenCode

VS Code

Use Postiz MCP with VS Code

MORE TOOLKITS

Explore Other Toolkits

Toolkit marketplace

Google Sheets

Oauth2

Google Sheets is a cloud-based spreadsheet tool for real-time collaboration and data analysis. It lets teams work together from anywhere, updating information instantly.

Notion

Oauth2Api Key

Notion is a collaborative workspace for notes, docs, wikis, and tasks. It streamlines team knowledge, project tracking, and workflow customization in one place.

Airtable

Oauth2Api Key

Airtable combines the flexibility of spreadsheets with the power of a database for easy project and data management. Teams use Airtable to organize, track, and collaborate with custom views and automations.

Asana

Oauth2

Asana is a collaborative work management platform for teams to organize and track projects. It streamlines teamwork, boosts productivity, and keeps everyone aligned on goals.

FAQ

Frequently asked questions

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.

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.

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.

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.

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Customer stories

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Karan skipped his own birthday party to fix our critical issue. It was 10pm and he diverted his Waymo to help us instead. This really sets the bar — it shows the commitment you need when users rely on your software.

Harsha Gaddipati

Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

Abhi Arya

Co-founder, Opennote

We chose Composio over Pipedream because it delivered depth where it mattered — niche tools and tricky edge cases other platforms simply ignored. That gave us confidence to scale without compromising.

Nirman Dave

CEO, Zams

As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

Ryan Yu

Founder, Extra Thursday

Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

Tomisin Jenrola

Founder & CEO, SwarmZero

With hands-on help from their founder, we integrated Gmail and Google Drive in just 30 minutes. This level of personal support and commitment is exactly what startups should strive for.

Jerome Leclanche

Co-Founder, Ingram Technologies