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io.github.ArturLys/ao3-mcp

PYPI · AO3-MCP · SCANNED SEP 20

Search AO3 and have fics read by a secondary model before they're recommended

Available components

0 this week 78 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →

Supply Chain Security100
  • No malware found by supply-chain analysis.Pass
  • No known CVEs affecting this package version or its production dependencies.Pass
  • Runs setuptools.build_meta at install time, a recognised native-build step with no shell scripting around it. View diagnostics → Pass
  • 2 of 46 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
Schema Quality & AI Usability57
  • AI-judged instruction clarity (excellent).Pass
  • Context-footprint check failed: tool/resource definitions use about 3001 tokens (~600/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management90
  • Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage71
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 0% of tool parameters carry a description.Fail
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

How do I install the io.github.ArturLys/ao3-mcp server?

io.github.ArturLys/ao3-mcp runs locally as a PyPI package, launched with uvx ao3-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

pypi · ao3-mcp

# add to Claude Code
claude mcp add arturlys-ao3-mcp -- uvx ao3-mcp
// .cursor/mcp.json
{
  "mcpServers": {
    "arturlys-ao3-mcp": {
      "command": "uvx",
      "args": [
        "ao3-mcp"
      ]
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "arturlys-ao3-mcp": {
      "command": "uvx",
      "args": [
        "ao3-mcp"
      ]
    }
  }
}
# add to Codex CLI
codex mcp add arturlys-ao3-mcp -- uvx ao3-mcp
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "arturlys-ao3-mcp": {
      "type": "local",
      "command": [
        "uvx",
        "ao3-mcp"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add arturlys-ao3-mcp --command uvx --arg ao3-mcp
# ~/.hermes/config.yaml
mcp_servers:
  arturlys-ao3-mcp:
    command: "uvx"
    args: ["ao3-mcp"]
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "arturlys-ao3-mcp": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "ao3-mcp"
      ]
    }
  }
}
# add to Vellum
assistant mcp add arturlys-ao3-mcp -t stdio -c uvx -a ao3-mcp
// mcp.json
{
  "mcpServers": {
    "arturlys-ao3-mcp": {
      "command": "uvx",
      "args": [
        "ao3-mcp"
      ]
    }
  }
}
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 20 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

  • 18 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

  • 17 Sept 26 −3
    • Stability: pass → 0.80 functional
  • 16 Sept 26 0
    • Stability: 0.97 → pass security
  • 15 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

  • 13 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

  • 11 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

  • 10 Sept 26 −3
    • Stability: pass → 0.80 functional
Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 20 Sept 2026 · Analysed pypi/ao3-mcp@0.1.2

Provenance No attestation

The registry publishes no build provenance for this version, so there is nothing to verify.

Result No attestation
Ecosystem pypi

Background: How many MCP packages publish verified provenance →

Install scripts 1 script
Hook Tier Command
build_backend allowlisted setuptools.build_meta

Background: Why install scripts are a supply-chain risk →

Dependencies 46 packages
Packages resolved 46
Stale 2
Tree resolution Complete

Background: SBOMs and build attestations, explained →

MCP tools · 5 exposed · ~2,690 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
find_tags ~108

Resolve fuzzy wording to canonical AO3 tag names (live autocomplete). Use before search_works when unsure of exact spelling — e.g. "coffee shop" resolves to "Alternate Universe - Coffee Shops & Cafés". Args: term: partial/fuzzy tag text, e.g. "enemies to", "coffee", "kakashi". kind: what to complete: tag | fandom | relationship | character.

NameTypeReqDescription
kindstring
termstringyes
NameTypeReqDescription
resultstringyes

No examples provided.

get_work ~67

Get the full metadata card for one work: tags, stats, summary, series info. Args: work_id: the numeric AO3 work id (from search results or a URL like archiveofourown.org/works/12345).

NameTypeReqDescription
work_idstringyes
NameTypeReqDescription
resultstringyes

No examples provided.

get_work_text ~276

⚠️ NOT RECOMMENDED — escape hatch only. Returns the raw full text of ONE fic directly to you, bypassing the mini reader. Prefer `read_works` in almost every case. A fic can run 150k+ words; pulling that into your own context buries everything else, burns your tokens, and throws away the whole reason this server exists — delegating reading to a cheap second model. `read_works` hands you a structured report plus verbatim prose samples, which is enough to judge, compare, and recommend a fic without the fic ever entering your context. Only reach for this when you genuinely need exact wording a report can't carry — e.g. the user explicitly asks you to quote or close-read a specific passage. If you just want to know what a fic is like or whether it's good: use `read_works` instead. Args: work_id: the numeric AO3 work id. max_words: cap the text to the first N words (0 = whole fic). Set a limit to sample a fic's opening instead of dumping the entire thing into your context — a few thousand words is usually plenty to judge voice.

NameTypeReqDescription
max_wordsinteger
work_idstringyes
NameTypeReqDescription
resultstringyes

No examples provided.

read_works ~446

Have the mini reader (a separate AI) read full fics and report on each. Works for a single fic or up to 20 at once. You never receive fic text — only structured reader reports, one per work. The reader answers your query directly (anything works: "is the ending happy?", "how explicit is it?", "which of these should I read first?") plus gives a general digest of plot, characters, style, and content notes. When given several fics, it ends with a comparison section ranking them against your query. This is the ONLY approved way to read a fic. A separate model does the reading so a whole novel never touches your context. You MUST send fics here before you recommend, rank, summarize, or judge them — search blurbs are not enough, and reading raw text yourself defeats the entire point of this server. Shortlist from blurbs, read here, then recommend. Reading depth: a single-fic call sends the reader up to ~150k words (whole novels fit); in a batch each fic is capped at ~100k characters. If a long fic's report matters, read it alone. Batches that exceed the token budget are split internally, then a final reduce pass still produces ONE global comparison across the whole batch. Content refusals: the reader is Gemini, which has a non-configurable safety filter that occasionally refuses explicit or extreme fics — that fic's report comes back as "(mini reader returned no text …)". The server already retries once on the backup model, but the block is intermittent, so if a fic you care about is refused: read it ALONE (a single fic isn't dragged down by an extreme one sharing its batch), or just retry. In a mixed batch, one refused fic does not sink the others — their reports still return. Args: work_ids: 1-20 numeric AO3 work ids (from search results or URLs). query: the question to answer about each fic.

NameTypeReqDescription
querystringyes
work_idsarrayyes
NameTypeReqDescription
resultstringyes

No examples provided.

search_works ~1,793

Search AO3 for works. All filters optional; combine freely. RECOMMENDATION WORKFLOW — reading before recommending is MANDATORY, and the reading is done by a SEPARATE model, not you. Blurbs are author-written ads; never recommend, rank, or summarize a fic from its blurb alone. Cast a wide net (pages=2-3, i.e. 40-60 blurbs), shortlist the promising ones, then hand the top ≤20 ids to `read_works` — a second AI reads them and reports back. Recommend ONLY fics that came back from `read_works`. Do not read fic text yourself; delegating it is the entire point of this server. SEARCH STRATEGY — searching is cheap and reading is delegated, so the winning move is always to OVER-FETCH and let `read_works` brute-force the shortlist, never to craft one perfect narrow query. Filters multiply: each one you add cuts the pool, and stacked filters routinely cut it to zero. USE WILDCARDS LIBERALLY — abuse them. A `*` matches any run of characters and works in EVERY name field (`fandom`, `relationship`, `character`, `tags`) and in `query`. Wrapping a term in stars is the single best defence against AO3's exact-canonical-name trap: `fandom="Genshin Impact (Video Game)"` returns ZERO (the canonical tag is actually "原神 | Genshin Impact (Video Game)"), but `fandom="*Genshin Impact*"` returns the whole fandom. Likewise `relationship="*Kazuha*Scaramouche*"`, `tags="*Enemies to Lovers*"`. When you don't know the exact canonical name — which is most of the time — reach for a wildcard first instead of guessing the literal string. IF YOU GET 0 (or few) RESULTS, that is almost always your query being too narrow, NOT the content missing from AO3. Recover instead of giving up: - FIRST, wildcard the name fields (`*Genshin Impact*`). This fixes the most common cause — an exact-match field that didn't match the canonical tag — in one retry, without a separate `find_tags` round-trip. - Still unsure of a name? `find_tags` resolves it, or move the idea into `query` as free text (fuzzy, no canon…

NameTypeReqDescription
authorstring
categoriesstring
characterstring
complete_onlyboolean
fandomstring
pageinteger
pagesinteger
querystring
ratingstring
relationshipstring
sort_bystring
tagsstring
titlestring
word_countstring
NameTypeReqDescription
resultstringyes

No examples provided.

Common questions

What is the io.github.ArturLys/ao3-mcp server?

io.github.ArturLys/ao3-mcp is listed in the public MCP registry as io.github.ArturLys/ao3-mcp. Search AO3 and have fics read by a secondary model before they're recommended. This page covers its PyPI package (ao3-mcp).

Is the io.github.ArturLys/ao3-mcp server safe to use?

io.github.ArturLys/ao3-mcp scores 78 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the io.github.ArturLys/ao3-mcp server expose?

io.github.ArturLys/ao3-mcp exposes 5 tools: search_works, find_tags, get_work, read_works, get_work_text. Their descriptions and schemas cost roughly 2,690 tokens of context every time the server is loaded.

Is the io.github.ArturLys/ao3-mcp server still maintained?

io.github.ArturLys/ao3-mcp is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

What licence is the io.github.ArturLys/ao3-mcp server under?

io.github.ArturLys/ao3-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.