Best Open-Source MCPs

Read and write local files with configurable access controls.

Local SQLite database access with full read/write support.

Retrieve web pages and convert them to clean markdown.

Local Git operations: commit, diff, log, branch, and more.

Full GitHub API access: repos, PRs, issues, and code search.

Query and inspect PostgreSQL databases via natural language.

Real-time web search with privacy-focused results.

Full browser automation: navigate, click, screenshot, and scrape.

Structured step-by-step reasoning for complex problem solving.

Persistent knowledge graph memory across AI conversations.

Manage payments, customers, and subscriptions through Stripe.

Read, write, and search across Notion pages, databases, and blocks.

Triage errors, inspect traces, and query events from Sentry.

Geocoding, place search, directions, and travel times from Google Maps.

Read and send Slack messages, manage channels and threads.

Manage Workers, R2 buckets, DNS, and edge policies on Cloudflare.

Read products, orders, and inventory from your Shopify store.

Up-to-date library docs pulled directly into your AI context.

Full Supabase access: database, auth, storage, and edge functions.

Search, inspect, and run Hugging Face models and datasets from an agent.

Real-time and forecast weather data via the OpenWeatherMap API.

Read and write notes in your local Obsidian vault.

Secure cloud sandboxes for executing AI-generated code.

Manage Linear issues, projects, and cycles from AI context.

Read, create, and manage events across Google Calendar.