ThreadKey reads your manuscripts and automatically builds a living series bible — tracking every character, location, timeline event, and world-building rule across your entire series. Catch continuity errors before your readers do.
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Every author who has written more than one book knows this pain.
Your protagonist's eyes were green in book one. Now they're blue. A reader noticed on page 1 of book 4.
You spend 45 minutes ctrl+F searching three books to remember what your antagonist's castle looks like.
You started a spreadsheet for characters. You abandoned it in book two. Now you have a 400-page PDF you never open.
Upload your manuscripts. ThreadKey does the rest.
Drop in your manuscripts — PDF, DOCX, or TXT. ThreadKey reads every chapter and extracts every named entity using AI.
Characters, locations, timeline events, and world rules are automatically organized into a searchable, structured series bible.
Query your bible in plain English, check new chapters for continuity errors, and export a formatted bible PDF for editors.
ThreadKey builds structured profiles for every character in your series — including physical descriptions, personality traits, relationships, key events, and citations back to the exact chapter where each detail was established.
Tall, angular features, dark hair with silver streaks at the temples. Scar along left jaw from the Battle of Varenhold.
Book 2, Ch. 7Book 4, Chapter 12 — cross-referenced against 3 books
“Kael's silver ring...” — Kael lost his ring finger in Book 2, Ch. 14 during the siege of Merrath.
Book 2, Ch. 14“The east gate of Varenhold...” — Varenhold's east gate was described as sealed permanently in Book 1, Ch. 8. Verify if intentional plot point.
Book 1, Ch. 8Elara's ability to read Old Script — first established Book 1, Ch. 3. Consistent.
Paste a new chapter and ThreadKey cross-references every factual claim against your previous books. It finds contradictions, flags possible issues, and confirms what's consistent — in seconds.
Whatever genre you write, if your story spans multiple books, ThreadKey was made for you.
Track magic systems, alien cultures, political factions, invented languages, and complex world-building rules.
Keep relationship timelines straight, track recurring characters across books, and maintain character voice consistency.
Maintain clue trails, track detective methodology, and ensure your series antagonist's backstory stays consistent.
Juggle real historical events alongside fictional characters across decades or centuries of your saga.
One plan. Everything included. No surprises.
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Upload your first book free. See your series bible appear in minutes. Join authors who write with confidence instead of chaos.
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