# How to connect PDF Vector to Claude

```json
{
  "title": "How to connect PDF Vector to Claude",
  "toolkit": "PDF Vector",
  "toolkit_slug": "pdf_vector",
  "framework": "Claude Cowork",
  "framework_slug": "claude-cowork",
  "url": "https://composio.dev/toolkits/pdf_vector/framework/claude-cowork",
  "markdown_url": "https://composio.dev/toolkits/pdf_vector/framework/claude-cowork.md",
  "updated_at": "2026-09-10T05:32:22.575Z"
}
```

## Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.
This guide walks you through the easiest and most secure way to connect your PDF Vector account to Claude via Composio Connect, enabling it to summarize key findings from research paper, extract tables from grant PDF into JSON, search similar publications for this abstract, and more such actions on your behalf without compromising your account security.
Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

## Also integrate PDF Vector with

- [ChatGPT Work](https://composio.dev/toolkits/pdf_vector/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/pdf_vector/framework/hermes-agent)

## Connect PDF Vector to Claude Cowork

### Connecting PDF Vector to Claude Web, Desktop, and Cowork
1. Open Customize
In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.
2. Add the Composio MCP server
Click Add custom connector and paste in the Composio MCP server URL:

```bash
https://connect.composio.dev/mcp
```

## What is the PDF Vector MCP server, and what's possible with it?

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

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `PDF_VECTOR_ASK_DOCUMENT` | Ask Document | Answer one question from a general, identity, invoice, or bank-statement document. Processing consumes credits; the response reports the actual model and credit cost. The tool never retries with a higher model automatically. |
| `PDF_VECTOR_EXTRACT_DOCUMENT` | Extract Document Data | Extract schema-constrained structured data from a general, identity, invoice, or bank-statement document. Processing consumes credits and never retries with a higher model automatically. |
| `PDF_VECTOR_FETCH_PUBLICATIONS` | Fetch Publications | Resolve up to 100 publication identifiers with provider auto-detection and return both resolved records and per-identifier errors. |
| `PDF_VECTOR_FIND_CITATIONS` | Find Citations | Find relevant academic citations for each sentence in a paragraph and preserve provider-specific partial errors. |
| `PDF_VECTOR_FIND_SIMILAR_PAPERS` | Find Similar Papers | Find papers related to a seed publication using citation-network similarity, optionally including relationship edges. |
| `PDF_VECTOR_GET_PAPER_GRAPH` | Get Paper Graph | Retrieve a publication plus one independently offset-controlled page of citing papers and one page of referenced papers. |
| `PDF_VECTOR_PARSE_ACADEMIC_PAPER` | Parse Academic Paper | Resolve an academic identifier or provider URL to a public PDF and parse it to markdown. Processing consumes credits, returns the actual model and credit cost, and never retries with a higher model automatically. |
| `PDF_VECTOR_PARSE_DOCUMENT` | Parse Document | Convert a general, identity, invoice, or bank-statement document to markdown. Processing consumes credits; returns the actual model and credit cost and never retries with a higher model automatically. |
| `PDF_VECTOR_SEARCH_PUBLICATIONS` | Search Publications | Search academic publications across selected databases and return one offset-controlled page, including any provider-specific partial errors. |
| `PDF_VECTOR_SEARCH_RESEARCH_GRANTS` | Search Research Grants | Search US, EU, and UK research-grant providers and return one explicit offset-controlled page with partial provider errors. |

## Supported Triggers

None listed.

## Troubleshooting

### 1. Why does Claude not use the Composio connector for PDF Vector?

The connector can show as connected, but Claude must use it in each PDF Vector conversation.
- Click + at the lower left of the chat, or type /.
- Hover Connectors.
- Turn on Composio.
- Ask Claude to connect to PDF Vector again.

### 2. Why does Claude show an MCP server error before PDF Vector connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for PDF Vector.
- Check that the connector URL is https://connect.composio.dev/mcp.
- Connectors run from Anthropic's cloud, so your device network is usually not the problem.
- Add the connector again from Customize > Connectors, then ask Claude to connect PDF Vector.
- If it fails again, send the error and the ofid_ reference id to support@composio.dev.

### 3. Why does the PDF Vector authorization link not work?

The Composio connector is one server. Your PDF Vector account connects separately when Claude asks for it.
- If the browser does not open, or the link expires, ask Claude to retry the PDF Vector connection.
- Composio creates a fresh PDF Vector authorization link.
- Open that link in your browser and finish the PDF Vector sign-in.

### 4. Why do PDF Vector actions fail after they worked before?

The PDF Vector connection can expire or lose permission.
- Ask Claude to inspect the PDF Vector connection.
- If the connection is unhealthy, disconnect it when Claude prompts you.
- Reconnect the PDF Vector account and retry the action.
- If Claude shows a permission prompt, approve it before Claude changes data in PDF Vector.
- If the action still fails with a permission error, check that the connected account has that permission in PDF Vector itself.

### 5. How do I switch to a different PDF Vector account?

Claude can manage the PDF Vector connection for you.
- Ask Claude to disconnect or delete the current PDF Vector account.
- Ask Claude to connect PDF Vector again.
- Open the new Composio authorization link for PDF Vector.
- Sign in with the other PDF Vector account in the browser.
- After the account connects, ask Claude to retry the PDF Vector task.

### 6. Why is my PDF Vector connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your PDF Vector connection works in Claude Web, Desktop, and Cowork.
- In Claude Desktop, open Customize > Connectors.
- Next to Composio, click ⋮ and click Clear cache.
- If PDF Vector tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
- On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect PDF Vector.

## Creating MCP Server - Stand-alone vs Composio SDK

The PDF Vector MCP server connects Claude Web, Desktop, and Cowork to your PDF Vector account through Composio. Once connected, Claude can use the available PDF Vector tools and triggers to complete tasks on your behalf.

## Complete Code

None listed.

## How to build PDF Vector MCP Agent with another framework

- [ChatGPT Work](https://composio.dev/toolkits/pdf_vector/framework/chatgpt)
- [Hermes](https://composio.dev/toolkits/pdf_vector/framework/hermes-agent)

## Related Toolkits

- [Google Drive](https://composio.dev/toolkits/googledrive) - Google Drive is a cloud storage platform for uploading, sharing, and collaborating on files. It's perfect for keeping your documents accessible and organized across devices.
- [Google Docs](https://composio.dev/toolkits/googledocs) - Google Docs is a cloud-based word processor that enables document creation and real-time collaboration. Its seamless sharing and version history make team editing and content management a breeze.
- [Google Super](https://composio.dev/toolkits/googlesuper) - Google Super is an all-in-one suite combining Gmail, Drive, Calendar, Sheets, Analytics, and more. It gives you a unified platform to manage your digital life, boosting productivity and organization.
- [ActiveMerge](https://composio.dev/toolkits/active_merge) - ActiveMerge is a document automation platform for generating documents, images, merged files, and e-signature workflows. It helps teams turn templates and stored files into finished, shareable documents faster.
- [Affinda](https://composio.dev/toolkits/affinda) - Affinda is an AI-powered document processing platform that automates data extraction from resumes, invoices, and more. It streamlines document-heavy workflows by turning files into structured, actionable data.
- [Agility cms](https://composio.dev/toolkits/agility_cms) - Agility CMS is a headless content management system for building and managing digital experiences across platforms. It lets teams update content quickly and deliver omnichannel experiences with ease.
- [Airparser](https://composio.dev/toolkits/airparser) - Airparser is an AI-powered parser for extracting structured data from emails, documents, PDFs, and files. It turns messy inbound content into clean fields your apps and workflows can use.
- [Algodocs](https://composio.dev/toolkits/algodocs) - Algodocs is an AI-powered platform that automates data extraction from business documents. It delivers fast, secure, and accurate processing without templates or manual training.
- [Api2pdf](https://composio.dev/toolkits/api2pdf) - Api2Pdf is a REST API for generating PDFs from HTML, URLs, and documents using powerful engines like wkhtmltopdf and Headless Chrome. It streamlines document conversion and automation for developers and businesses.
- [Aryn](https://composio.dev/toolkits/aryn) - Aryn is an AI-powered platform for parsing, extracting, and analyzing data from unstructured documents. Use it to automate document processing and unlock actionable insights from your files.
- [Boldsign](https://composio.dev/toolkits/boldsign) - Boldsign is a digital eSignature platform for sending, signing, and tracking documents online. Organizations use it to automate agreements and manage legally binding workflows efficiently.
- [Boloforms](https://composio.dev/toolkits/boloforms) - BoloForms is an eSignature platform built for small businesses, offering unlimited signatures, templates, and forms. It simplifies digital document signing and team collaboration at a predictable, fixed price.
- [Box](https://composio.dev/toolkits/box) - Box is a cloud content management and file sharing platform for businesses. It helps teams securely store, organize, and collaborate on files from anywhere.
- [Box MCP](https://composio.dev/toolkits/box_mcp) - Box MCP is Box's hosted MCP server that exposes enterprise files, folders, and metadata. It provides secure, centralized access to corporate content for search and management.
- [Carbone](https://composio.dev/toolkits/carbone) - Carbone is a blazing-fast report generator that turns JSON data into PDFs, Word docs, spreadsheets, and more using flexible templates. It lets you automate document creation at scale with minimal code.
- [Castingwords](https://composio.dev/toolkits/castingwords) - CastingWords is a transcription service specializing in human-powered, accurate transcripts via a simple API. Get seamless audio-to-text conversion for interviews, meetings, podcasts, and more.
- [CertSeal](https://composio.dev/toolkits/cert_seal) - CertSeal is an API platform for issuing and managing verifiable digital certificates. Use it to automate trusted certificate workflows for recipients, batches, designs, and webhooks.
- [Cloudconvert](https://composio.dev/toolkits/cloudconvert) - CloudConvert is a powerful file conversion service supporting over 200 file formats. It streamlines converting, compressing, and managing documents, media, and more, all in one place.
- [Cloudlayer](https://composio.dev/toolkits/cloudlayer) - Cloudlayer is a document and asset generation service for creating PDFs and images via API or SDKs. It lets you automate high-quality doc creation, saving dev time and reducing manual work.
- [CloudPDF](https://composio.dev/toolkits/cloud_pdf) - CloudPDF is an API platform for creating, uploading, managing, and sharing PDF documents. Use it to build secure PDF workflows with webhooks, share links, and access control.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and PDF Vector MCP?

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.

### 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 PDF Vector tools.

### Can I manage the permissions and scopes for PDF Vector while using Tool Router?

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.

### 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 PDF Vector data and credentials are handled as safely as possible.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)