Iwac

A read-only Model Context Protocol server for the Islam West Africa Collection (IWAC). Ships as a one-click Desktop Extension (.mcpb) for Claude Desktop, backed by the IWAC Hugging Face dataset. Also available as a hosted endpoint at https://islam.zmo.de/mcp/ for ChatGPT and other MCP clients — see docs/connecting.md for the full connection walkthrough (Claude Desktop and ChatGPT).

Install

Each release ships a server bundle for your operating system plus a research-skill .zip. The .mcpb gives Claude the data and tools; the .zip adds a research skill that teaches Claude how to use them. Install the server first, then install the skill too — strongly recommended for getting the most out of the tools: it makes Claude search and synthesize far more efficiently, with fewer wasted queries.

1. The MCP server — pick the bundle for your OS

Your OS	Download
Windows (Intel/AMD or Snapdragon)	iwac-mcp-server-windows.mcpb
macOS (Apple Silicon or Intel)	iwac-mcp-server-macos.mcpb

1. Download the bundle for your OS from Releases.
2. Double-click the file. Claude Desktop shows an install dialog — click Install.
3. On first use the server downloads ~250 MB of parquet data from Hugging Face into ~/.iwac-mcp/cache/ (override in the extension settings).

No Python, no uv, no venv — the bundle ships a self-contained Node runtime and the DuckDB binaries for your OS (x64 and arm64; Claude Desktop picks the right one). Claude Desktop has no Linux build, so no Linux bundle is published.

2. The research skill — iwac-mcp-skill.zip (strongly recommended)

The iwac-mcp skill wraps the raw tools in a structured research workflow: a five-phase methodology, francophone search strategy, source attribution with confidence grading, and bias/coverage caveats. It makes the server far more efficient to use — Claude picks the right tool and search terms on the first pass (fewer wasted queries), searches French sources properly, and returns a cited synthesis instead of a raw tool dump. You can run the tools without it, but you'll get more out of every query with it installed.

Download iwac-mcp-skill.zip from the same release, then:

• Claude Desktop — open Customize → Skills → + → Create skill → Upload a skill and select the zip. (Or unzip it into ~/.claude/skills/ and restart Claude Desktop.)

• Claude Code — unzip it into your skills directory; Claude Code discovers it live, no restart needed:

  # macOS / Linux
  unzip iwac-mcp-skill.zip -d ~/.claude/skills/
  

  # Windows (PowerShell)
  Expand-Archive iwac-mcp-skill.zip -DestinationPath $HOME\.claude\skills\
  

  Both land the skill at ~/.claude/skills/iwac-mcp/. The repository source of truth is .agents/skills/iwac-mcp/; keep project-local copies there rather than duplicating the same skill under .claude/.

What it gives Claude

37 possible read-only tools across seven IWAC subsets. 34 work out of the box; the 3 semantic_search_* tools are optional and require a free Google/Gemini API key (disabled by default). All keyword and filter matching is accent- and case-insensitive. The unified search/fetch pair, the stats tools, the aggregates, list_periodicals, and get_sentiment_distribution also return MCP structured content (outputSchema + structuredContent), which the ChatGPT connector contract requires.

Group	Tools
Cross-subset	search, fetch
Articles	search_articles, get_article, semantic_search_articles
Sentiment	search_by_sentiment, get_sentiment_distribution
Index	search_index, get_index_entry, list_subjects, list_locations, list_persons
Stats	get_collection_stats, get_newspaper_stats, get_country_comparison, get_temporal_distribution
Aggregates	get_topic_distribution, get_field_distribution, get_cooccurrence, get_lexical_metrics, get_place_distribution, get_semantic_map, get_similar_items
Publications	search_publications, list_periodicals, get_publication_fulltext, semantic_search_publications
References	search_references, get_reference
Images	search_images, get_image, semantic_search_images
Other	search_documents, get_document, search_audiovisual, list_audiovisual, get_audiovisual

The aggregates answer questions about a whole set rather than returning its items: how it spreads across the 30 precomputed LDA topics, which subjects, places or bylines dominate it, what gets discussed alongside what, how its prose reads, where on a map it points, how it lays out in embedding space, and what a given item's nearest neighbours are. Eleven tools in all — the stats family plus these — declare an MCP App view, so in Claude they render as interactive charts rather than JSON.

get_temporal_distribution also reads the Islamic calendar. With granularity="lunar_month" it pools every year into the twelve lunar months — the one bucket a Gregorian axis structurally cannot produce, because the Hijri year drifts ~11 days annually and so smears each observance across all twelve Gregorian months. Over the 12,220 fully-dated articles the archive's rhythm is plain: Ramadan +72%, Dhu al-Hijja +70% (hajj and Tabaski) and Shawwal +44% (Korité) against an even split, while Rabi' I — Maouloud — sits flat. search_articles and search_publications take hijri_month (1–12 or a name in either transliteration) and hijri_year to read the items behind a peak. The lunar dates are precomputed in the dataset pipeline with the Umm al-Qura tables, the same converter the on-this-day block on islam.zmo.de uses, so the two never disagree; items dated only to a year or month have no lunar date and are reported in imprecise_date_count rather than plotted.

The three full-text tools — get_article, get_document, and get_publication_fulltext — optionally take a keyword to return ~2000-char excerpts around each match, so Claude reads just the relevant passages of a long article, archival document, or periodical issue instead of the whole OCR.

Every result object includes a url field pointing at the canonical IWAC record, e.g. https://islam.zmo.de/s/afrique_ouest/item/28576.

About the collection

IWAC is a digital archive focused on Islam and Muslims in West Africa:

• 12,000+ newspaper articles from Benin, Burkina Faso, Côte d'Ivoire, Niger, and Togo, 1960s–present (mostly French), each with an AI abstract and AI sentiment analysis (polarity / centrality / subjectivity), scored independently by gemini-3-flash-preview, gpt-5-mini and ministral-14b-2512
• 4,700+ authority records (persons, organisations, places, events, subjects)
• 1,500+ Islamic publications (periodical issues, books) with full OCR
• 860+ academic references, half with abstracts
• Archival documents and Nigerian audiovisual materials

Architecture

• Data: parquet files from the IWAC Hugging Face dataset are lazily downloaded per subset (articles, publications, documents, audiovisual, index, references) into a local cache and queried through DuckDB views. All SQL is parameterised; matching is accent/case-insensitive.
• Transports: stdio (the default — what the Claude Desktop .mcpb uses), and a stateless Streamable-HTTP mode (node server/index.js --http) behind a bearer token, which the Docker image runs for the hosted https://islam.zmo.de/mcp/ endpoint.
• Docker: every release publishes ghcr.io/fmadore/iwac-mcp-server for self-hosting the HTTP endpoint — see mcpb/README.md for the required env vars and token setup.

Develop

The bundle lives under mcpb/. See mcpb/README.md for the build / pack workflow.

cd mcpb
npm install
npm run install-bindings   # fetch the 4 macOS/Windows DuckDB binaries
npm run typecheck   # tsc --noEmit
npm run lint        # biome (linter only)
npm run build       # esbuild -> single server/index.js
npm test            # unit tests + offline fixture & HTTP MCP round-trips (no network)
npm run test:live   # full smoke test against the real HF dataset (~250 MB)

CI runs the version check, typecheck, lint, build, unit tests, and the offline fixture + HTTP round-trip tests on every push to main and every pull request; the live smoke test runs weekly (its pinned counts are the dataset-drift alarm). Releases: push a v* tag — the release workflow re-runs the full test suite, packs the per-OS .mcpb bundles and skill zip, smoke-tests and pushes the Docker image, uploads the release assets, and publishes to the MCP Registry.

Roadmap

See TODO.md — near-term: submit to the Anthropic extension directory, sign the bundle with a production code-signing cert, and replace Gemini semantic-search with a free local model.

License

MIT

Related

• IWAC Hugging Face Dataset
• IWAC Digital Archive
• Desktop Extensions spec (MCPB)