The writing platform for books written with AI.

Connect Claude or ChatGPT. Scriptorium remembers your whole book and checks every chapter before you read it.

Works withClaudeChatGPTany MCP app

Chapter 122,140 words, draft 2

The Mill

Maren let out a breath she didn’t know she was holding breathed out. The mill was dark, the wheel still.

She found the ring on the windowsill.Continuity: the ring was thrown in the river in chapter 9.

Tomas waited by the race, his hand on the rope.

Checks10 of 10 run
  • Word count Passed
  • Rhythm screen Passed
  • Accuracy checker 1 fixed
  • Senior editor Passed
  • Plain reader 1 fixed
  • Clarity reader Passed
  • Proofreader Passed
  • Final plain pass Passed
checks on every chapter, from clichés to continuity
10
tools your AI can use to read and write the book
202
AI subscriptions to add. You use the one you have.
0

Your AI in the middle of your book

It plans and writes the chapters. You do the final polish.

Read before writing

  • CharactersLooks, history and what each person knows.
  • Chapter cardThe plan for this chapter, argued and approved by you.
  • Your voiceYour style rules, so it never reads like generic AI.
  • ContinuityWho knows what, and where everyone is.
Your AI chatClaude, ChatGPT or any MCP app

You: Write chapter 12.

Reading Maren, the chapter card, your voice and where everyone stands

AI: Chapter 12 is written: 3,100 words, in your voice. The ring’s thread is paid off.

Checks passed. Saved as draft 3.

Saved after writing

  • Quality checksEvery chapter checked before you read it.
  • Plot threadsEvery setup marked until it pays off.
  • TimelineWhat happened when, across the series.
  • Version historyEvery draft kept, so nothing is lost.

How it works

Your AI does the writing. Scriptorium holds the book and checks the work.

Your AI app

Claude, ChatGPT or any app that supports MCP. You ask it for a chapter as you normally would.

ClaudeChatGPTMCP

Scriptorium

Before writing, your AI reads the book’s record. After writing, every chapter runs through the checks.

CharactersTimelinePlot threadsStyle rules
AI clichésContinuityClarityProofreading

You

You read chapters that have passed. Edit, talk changes in, then export to Word or EPUB.

EditDictateExport

Everything a long book needs

One place for the book, so nothing gets lost between chats.

It remembers every character

Looks, history and what each person knows, tied to the chapter it was set in.

Name
Maren Voss, 34
Scar
Left hand chapter 2
Knows
The letter was forged chapter 9
Last seen
On the ferry chapter 11

Plot threads stay open until they pay off

Who sent the letter?since ch 3

The ring in the riversince ch 9

Tomas’s debtsince ch 5

A timeline your AI checks against

Day 12, the letter arrivesch 3

Day 30, the ring is thrownch 9

Day 41, the mill firech 11

A report for every chapter

What each check found, what was fixed, and the chapter’s score.

CheckFoundResult
Plain reader“a testament to all they had lost”Rewritten
Accuracy checkerThe ring, already in the riverFixed
Clarity readerNo problemsPassed

Your edits are kept

Change any line by hand or by voice. The checks learn from what you change.

The wheel had seen better days had not turned since the fire.

Your edit, saved to chapter 12

Every draft is kept

Go back to any earlier version of a chapter. Nothing is ever lost.

Draft 3today

Draft 2Tuesday

Draft 1Monday

Export when you are ready

A finished file, ready for Kindle or your editor.

Word.docx
EPUBKindle ready
Chaptersone by one

No second AI subscription

Other writing apps charge for their own AI. Scriptorium works with the one you already pay for.

FeatureScriptoriumAI writing appsChatGPT or Claude alone
Uses the AI you already pay forYesTheir ownYes
Remembers the whole bookYesVariesLoses track
Checks every chapter before you read it10 checksNoNo
Timeline, cast and plot threadsYesVariesNo
Export to Word and EPUBYesVariesNo

Connect in a minute

Add Scriptorium to your AI app, then ask it about your book.

get_characterget_continuityget_chaptercreate_timeline_eventcheck_continuityexport_book
claude_desktop_config.json
{
  "mcpServers": {
    "scriptorium": {
      "url": "https://mcp.example.com"
    }
  }
}

Questions

Which AI apps work with it?

Claude and ChatGPT, and any other app that supports MCP.

Do I need my own AI subscription?

Yes. The writing happens in your own Claude or ChatGPT account. Scriptorium holds the book and runs the checks.

Does it write the book for me?

Your AI drafts chapters when you ask. You read, edit and decide what stays.

Can I bring a book I have already started?

Yes. Import your chapters and Scriptorium builds the record from them.

Start your first book

Connect your AI and write chapter one today.

Start your book
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