Using fastwrite with Claude and ChatGPT: Your Sources Right Inside the AI Chat – Step-by-Step Guide

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You're working on your term paper and want to know quickly what your sources say about a concept – but your PDFs live in fastwrite and your chat runs somewhere else. From now on, the two work together: with the fastwrite connector, Claude and ChatGPT can look things up directly in your fastwrite library.

The best part: your AI chat doesn't answer from gut feeling. It answers with real evidence from your uploaded sources – including author, year, page number, and a link that takes you straight to the exact passage.

What is the fastwrite-MCP-Connector?

Connectors are small bridges between your AI chat and your tools. The fastwrite connector gives Claude or ChatGPT read access to your source library: your uploaded PDFs, organized by your projects.

A generalist doesn't know your sources. With the connector, it does: you ask your question, the AI searches your literature and shows you exactly where the answer lives. Every claim comes with a citation and a clickable link to the exact passage – so you can verify it with one click.

What you need

- A fastwrite account with uploaded sources. The connector can only find what's in your library. No sources uploaded yet? You do that in the fastwrite app, as usual.

- A Claude or ChatGPT account. You manage connectors directly in each chat's settings.

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How to set it up in Claude

1. Open Claude (claude.ai) and go to Settings → Connectors.

2. Search for fastwrite in the connector directory and click Connect.

3. Sign in with your fastwrite account. A window opens with the familiar fastwrite login.

4. Confirm access. You'll see exactly what Claude is allowed to do: read your library. Nothing more. Click "Allow".

5. Done. Back in Claude, you can start right away.

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How to set it up in ChatGPT

1. Open ChatGPT (chatgpt.com) and go to Settings → Apps & Connectors.

2. Search for fastwrite and click Connect.

3. Sign in with your fastwrite account – the familiar fastwrite login opens here too.

4. Confirm access by clicking "Allow".

5. Done. Ask your first question – ChatGPT now has access to your library.

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In both cases the connection stays active – no need to sign in again for every chat.

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What you can ask now

A few ideas to get started – they work the same in Claude and ChatGPT:

- "Which of my sources say anything about customer satisfaction in e-commerce? Give me an overview with page numbers."

- "Find evidence for the claim that remote work increases productivity – with a quote and a link to the passage."

- "I need more literature on my topic. Which recent papers are out there that aren't in my library yet?"

The AI then searches your sources – by meaning, not just by keywords – and gives you an answer with clean citations in the style (Author, Year, p. X). Behind every piece of evidence is a link that opens the exact passage in your fastwrite viewer, highlighted for you.

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Your data

Short and transparent: the connection only happens when you start and confirm it yourself. Claude or ChatGPT gets read-only access to your library – your search queries and the passages found are transmitted to the respective provider (Anthropic or OpenAI) and processed there under its privacy terms. You can end the connection at any time by removing the connector in the chat's settings.

You'll find all the details in our privacy policy (https://www.fastwrite.io/en/privacy-policy).‍

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Questions or problems?

Just drop us an email at info@fastwrite.io – we're happy to help.

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