Local SQLite database access with full read/write support.
databasesqlitelocalstorage
Best Lightweight MCPs
Small footprint, few dependencies, fast startup. Lightweight MCPs are perfect for CI pipelines, low-spec dev machines, and anywhere you want to keep the agent sandbox boot time under a second. No bundled Chromium, no 100 MB docker images.
4 MCPs in this collectionFilter:
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Popularity-ordered. Click any card for install snippets, fact sheet, and trust signals.
Real-time and forecast weather data via the OpenWeatherMap API.
weatherforecastopenweathermaplifestyle
Read and write notes in your local Obsidian vault.
obsidiannotesmarkdownpkm
FAQ: Lightweight
Why does lightweight matter for MCP servers?
Every MCP you add runs as its own process. A heavy MCP (e.g. Puppeteer bundling Chromium) adds 150 MB and 1–2 seconds of startup time. On a shared agent host or CI runner, those costs compound quickly.
Does lightweight mean limited functionality?
Sometimes. A lightweight Fetch MCP cannot drive JS-rendered pages — that requires the heavier Puppeteer. Pick based on the actual task: many agent workflows do not need a full browser, so Fetch is both lighter and faster.