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How to integrate Upload-Post MCP with ChatGPT Work

Connect ChatGPT Work to Upload-Post MCP. Schedule linkedin and twitter product updates, publish instagram posts for campaign launch, and more using natural language, with authentication handled for you.

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Upload-Post is a social publishing API for posting, scheduling, and managing content across social networks. Use it to run multi-channel content workflows through one clean API instead of separate platform integrations.

12 Tools

How to integrate Upload-Post MCP with ChatGPT Work

ChatGPT Work is an agent inside ChatGPT built for your most ambitious work. It takes action across your apps and files, stays with a project for hours, and turns a goal into finished materials like sheets, slides, and docs - not just answers.

In this guide, I will explain the easiest and most secure way to connect your Upload-Post account to ChatGPT Work via Composio Connect, so it can schedule linkedin and twitter product updates, publish instagram posts for campaign launch, list scheduled social posts for review through natural language commands without ever putting your account credentials at risk.

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Why use Composio over default connectors?

  • Apps with read and write access. Default connectors mostly can read your data. Composio's Upload-Post integration lets ChatGPT Work take actions like creating drafts, sending updates, labeling records, and more.
  • 1,000+ SaaS toolkits out of the box. Composio gives you instant access to a vast catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce.
  • One MCP server for every app. Connect any of your applications on demand through a single endpoint, rather than juggling a separate server for each app.
  • Smart, context-aware tool loading. Unlike traditional MCP servers that dump every available tool into the LLM context window, Composio searches for and loads only the tools relevant to the task at hand.
  • Cross-app automation. Chain actions across multiple apps in a single run - fetch a thread, summarize it in Notion, and post highlights to Slack without leaving the conversation.

Prerequisites

  • A ChatGPT account with access to ChatGPT Work (rolling out across Pro, Enterprise, Edu, Plus, and Business plans). We will use the ChatGPT desktop app, which is available on every plan.
  • Access to the Upload-Post workspace you want to connect.
  • Composio MCP.

Note: Composio connects through OAuth. You will be asked to sign in and approve specific permissions. Review the permission screen carefully if you are using a work account.

Step-by-step: Connect Upload-Post to ChatGPT Work

1. Open the MCP settings

In ChatGPT Work, go to Settings and open the Plugins section. Inside the Plugins page, click the MCP tab.

ChatGPT Work settings showing the Plugins page with the MCP tab selected

2. Add the server

Click Add server. In the Name field enter Composio, for Type select Streamable HTTP, and in the URL field paste the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
ChatGPT Work Add server dialog with the name Composio, type Streamable HTTP, and the Composio MCP URL

Then click Save. The Composio server now appears in your MCP plugins list.

ChatGPT Work Plugins page showing the Composio MCP server added to the list

3. Authenticate

Click Authenticate, log in via Composio, and click Allow access to authorize ChatGPT Work to use your Composio account.

Composio login and Allow access screen for ChatGPT Work MCP setup

4. Start using Composio

That is it - Composio tools are now available in ChatGPT Work. Ask it to work with your Upload-Post account and it will run the actions you authorize.

What you can do after connecting Upload-Post

  • Schedule LinkedIn and Twitter product updates
  • Publish Instagram posts for campaign launch
  • List scheduled social posts for review

Security + privacy notes (important)

  • Use least-privilege access: Only grant permissions you actually need.
  • Review OAuth permissions before approving: Make sure requested scopes match what you expect Composio and ChatGPT Work to do.
  • Keep write actions human-reviewed: For actions like sending messages, creating labels, or editing drafts, keep manual confirmation enabled.
  • Be careful with sensitive data: Avoid using this setup with highly sensitive information unless allowed by your personal, company, or client policies.
TOOLS

Supported Tools

Every Upload-Post action and event your agent gets out of the box.

Cancel Scheduled Post

Permanently cancel a scheduled post before publication and delete its staged assets.

Create Profile

Create an Upload-Post profile for a unique caller-owned username; this does not connect any social platform.

Enqueue Post

Insert one video, photo carousel, or text post into a profile's external publication queue.

Get Upload Status

Get the processing status and per-platform results for an asynchronous or scheduled upload.

List Cached Post Analytics

Return one page of cached per-post analytics for a profile without consuming the live platform-analytics request limit.

List Platform Destinations

List selectable Facebook Pages, LinkedIn organizations, Pinterest boards, or Google Business locations for an already connected profile.

List Profiles

List Upload-Post profiles and their connected social accounts.

List Scheduled Posts

Return one page of pending scheduled posts and the job IDs needed to edit or cancel them.

List Upload History

Return one page of past and in-progress Upload-Post uploads, including platform post IDs, URLs, request IDs, and failures.

Publish Post

Immediately publish one video, photo carousel, or text post to external connected platforms.

Schedule Post

Schedule one video, photo carousel, or text post for future external publication to connected platforms.

Update Scheduled Post

Change the future publication time, title, or caption of an existing scheduled post.

FRAMEWORKS

How to build Upload-Post MCP Agent with another framework

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Claude Cowork

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FAQ

Frequently asked questions

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

Yes, you can. ChatGPT Work 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 Upload-Post tools.

Yes, absolutely. You can configure which Upload-Post 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 Upload-Post data and credentials are handled as safely as possible.

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