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How to connect PDF Vector MCP with ChatGPT Work

Connect ChatGPT Work to PDF Vector MCP. Summarize key findings from research paper, extract tables from grant pdf into json, and more using natural language, with authentication handled for you.

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PDF Vector is a document parsing and vector-search service that converts PDFs into markdown and structured data. Use it to quickly find, extract, and index details from academic papers and grant documents.

10 Tools

How to connect PDF Vector 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 PDF Vector account to ChatGPT Work via Composio Connect, so it can parse PDFs into markdown, extract structured data, answer document questions, index academic papers, and search grants 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 PDF Vector integration lets ChatGPT Work take actions like creating drafts, sending updates, labeling records, and more.
  • 1,500+ 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 PDF Vector 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 PDF Vector 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 PDF Vector account and it will run the actions you authorize.

What you can do after connecting PDF Vector

  • Summarize key findings from research paper
  • Extract tables from grant PDF into JSON
  • Search similar publications for this abstract

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 PDF Vector action and event your agent gets out of the box.

Ask Document

Answer one question from a general, identity, invoice, or bank-statement document.

Extract Document Data

Extract schema-constrained structured data from a general, identity, invoice, or bank-statement document.

Fetch Publications

Resolve up to 100 publication identifiers with provider auto-detection and return both resolved records and per-identifier errors.

Find Citations

Find relevant academic citations for each sentence in a paragraph and preserve provider-specific partial errors.

Find Similar Papers

Find papers related to a seed publication using citation-network similarity, optionally including relationship edges.

Get Paper Graph

Retrieve a publication plus one independently offset-controlled page of citing papers and one page of referenced papers.

Parse Academic Paper

Resolve an academic identifier or provider URL to a public PDF and parse it to markdown.

Parse Document

Convert a general, identity, invoice, or bank-statement document to markdown.

Search Publications

Search academic publications across selected databases and return one offset-controlled page, including any provider-specific partial errors.

Search Research Grants

Search US, EU, and UK research-grant providers and return one explicit offset-controlled page with partial provider errors.

FRAMEWORKS

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Hermes logo

Hermes

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FAQ

Frequently asked questions

With a standalone PDF Vector MCP server, the agents and LLMs can only access a fixed set of PDF Vector tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from PDF Vector 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 PDF Vector tools.

Yes, absolutely. You can configure which PDF Vector 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 PDF Vector data and credentials are handled as safely as possible.

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