AO3 MCP server

This is a small helper that connects your AI assistant to Archive of Our Own, the big fanfiction site, so it can search for stories and read them for you. Instead of guessing from the short description on a story page, your AI sends the full text to a second, cheaper AI that reads it and reports back. It is handy if you read a lot of fanfic and want honest recommendations, or if you write and want to see how other authors handle a scene.

What this MCP server does

You ask your AI something like find me a long enemies-to-lovers story and tell me which is best written. Your AI uses this helper to search AO3 with your filters, like fandom, pairing, rating, word count, or completion status. Then it hands the shortlist to a second AI called Gemini, which reads the full stories and writes a short report on each one: plot, characters, writing style, a few real sentences from the text, and any content warnings. Your AI compares those reports and gives you a recommendation based on what was actually written, not on the author's blurb. Stories it has already downloaded are kept for a day, so asking a new question about the same story does not bother AO3 again.

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What you can do with it

• Search AO3 by fandom, pairing, character, tags, rating, word count, and sorting
• Turn vague wording like rivals to lovers into the exact AO3 tag
• Fetch the full details card for one story, including tags and stats
• Read up to 20 full stories in one go and get a report on each
• Get real sentences from the text so writing quality is judged from the prose
• Compare several stories and get a ranking against your question
• Pull style examples from well-loved stories while you are writing

Try asking your AI

• “Find me a completed enemies-to-lovers longfic in this fandom, read the top candidates, and tell me which is best written.”
• “Search for stories with over 50,000 words and more than 500 kudos, then read the first five and summarize the plots.”
• “Find three highly-kudosed fics where rivals are forced to share a bed, read them, and tell me how each one builds the tension.”
• “What tags does AO3 use for a slow burn with a fake relationship? Then find me the most popular one.”

What it gives back to you

You get back a short report for each story: plot, characters, writing style, a few real sentences from the text, content notes, and a ranking that compares them against your question. It also gives you the story's title, author, tags, and stats so you can find it on AO3. Everything shows up as normal text in your chat, like a friend summarizing what they read.

Before you start

Who it's for

Fanfiction readers who want honest recommendations, and fanfic or roleplay writers who want to study how other authors handle a scene.