Wasilah MCP Server

Wasilah MCP

A remote Model Context Protocol server that exposes Wasilah's Islamic reference data to Claude as a custom connector. Add the URL in Claude and it can answer prayer-time, Qibla, Hijri-date, and Quran-audio questions directly.

Prayer times are computed with the same astronomy engine as the Wasilah app (ported from lib/features/prayer_times/prayer_astronomy.dart), so the connector and the app agree to the minute for the same location, date, method, and madhab.

Tools

Every location tool accepts either a city name (resolved against a bundled offline database) or explicit latitude + longitude + timezone. Prayer tools also accept method (Karachi, ISNA, MWL, Umm al-Qura, and others) and asr (auto, shafii, hanafi). The connector makes no external network calls.

Run locally

npm install
npm test        # exercises every tool through the MCP endpoint, no server needed
npm run dev     # serves the worker on http://localhost:8787

With the dev server running, point the MCP Inspector at http://localhost:8787/mcp to browse and call the tools interactively.

Deploy (Cloudflare Workers)

npx wrangler login
npm run deploy

Wrangler prints the deployed URL, for example https://wasilah-mcp.<subdomain>.workers.dev. The connector endpoint is that URL plus /mcp. Visiting the root URL serves a short landing page with the connector URL and setup steps.

Add to Claude

1. Settings, then Connectors.
2. Add custom connector.
3. Paste https://<your-worker-url>/mcp.
4. Ask something like "What time is Maghrib in Dhaka today?" or "Which way is the Qibla from Madinah?"

This server is authless and stateless. It exposes only public reference data; it holds no personal information and needs no sign-in.

Notes

• Prayer parity. Calculation-method angles, the Asr shadow factors, and the solar geometry mirror the app exactly. The app's default is Karachi method with Hanafi Asr.
• Hijri source. Uses the Umm al-Qura calendar where the runtime's ICU supports it, and a tabular calculation otherwise. A tabular date can differ from a moon-sighting announcement by a day.
• Fully offline. The connector makes no external API calls. City lookups use a bundled offline database (a subset of GeoNames, CC BY 4.0: top cities per country plus every capital); prayer times, Qibla, and Hijri date are computed on the server. Pass coordinates directly for places not in the database.
• Personal data is out of scope. This server does not touch the on-device Salah tracker. Exposing per-user history would require a Wasilah backend with accounts and OAuth.