Best Open-Source MCPs

Read and write local files with configurable access controls.

Current time and IANA timezone conversion — the first-party MCP that tells an agent what time it actually is.

Run `fly mcp server` to expose flyctl operations to AI agents.

Query and inspect MongoDB collections from Claude, Cursor, and VS Code.

Inspect keys, run commands, and debug Redis from an AI agent.

Embedded and hosted vector database for AI agents — open source, zero-ops.

Persistent memory layer for AI agents — auto-summarised, cross-session recall.

Look up Terraform Registry providers and modules, and manage HCP Terraform workspaces from an AI agent.

Query dashboards, Prometheus/Loki datasources, alerts, and incidents from an AI agent — official.

Manage subscriptions, transactions, products, prices, and financial reports on Paddle — official MCP.

Search, scrape, and unblock any public web page from an AI agent — official Web Unlocker MCP.

Scrape any URL, render JavaScript, and reach geo-restricted data — official Oxylabs Web Scraper MCP.

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.

16

GitHub

Git & Repo Workflows

Official

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

Anthropic's reference Postgres MCP — archived July 2025 and superseded by Postgres MCP Pro or the Supabase MCP.

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

Persistent knowledge graph memory across AI conversations.

20

Stripe

Commerce & Payments

Official

Manage payments, customers, and subscriptions through Stripe.

Official Plaid MCP — developer sandbox tooling and dashboard diagnostics, not a live bank-data connector.

Official Microsoft browser automation across Chromium, Firefox, and WebKit.

AI-native browser automation: act, observe, and extract in plain English.

Manage Heroku apps, dynos, add-ons, and Postgres from an AI agent.

Manage Droplets, App Platform, Kubernetes, and Spaces from an AI agent.

Register and manage Name.com domains via the official MCP, auto-generated from their OpenAPI.

Send transactional and broadcast emails via the official Resend MCP.

Manage Mailgun messaging, domains, webhooks, and analytics from an AI agent.

Neural web search and page fetch for AI agents — official remote MCP at mcp.exa.ai/mcp.

Search, ask, research, and reason via the official Perplexity MCP.

Ad-free, high-quality web search and page-to-markdown extraction from an AI agent.

Scrape, crawl, extract structured data, and search the web from an AI agent.

Query ClickHouse and ClickHouse Cloud columnar warehouses from an AI agent.

Search indices, inspect mappings, and run queries against Elasticsearch from an AI agent.

Open-source SAST scanning against custom rules from an AI agent.

Official Mapbox MCP — geocoding, directions, isochrones, search, and tiles across the Mapbox API surface.

Official Foursquare Places MCP — POI search, GeoTagging, and rich place metadata across 100M+ places.

Read, write, and manage GCS buckets and objects from an AI agent — official Google MCP, local or remote.

Official Salesforce MCP — SOQL queries, metadata deploy/retrieve, Apex tests, and org management from AI clients.

Google-published MCP server for databases — one Go binary speaks Postgres, MySQL, BigQuery, Spanner, AlloyDB, Snowflake, ClickHouse, MongoDB, Redis, and more.

Live SERP, keyword, backlink, and on-page SEO data for an AI agent.

Manage Azure resources across 40+ services from an AI agent — Microsoft's official MCP.

Drive Azure DevOps repos, pull requests, work items, and pipelines from an AI agent — Microsoft official.

Process payments and manage orders, catalog, inventory, and bookings on Square — official MCP.

Create invoices, capture orders, issue refunds, and track disputes on PayPal — official MCP.

Score npm, PyPI, Go, and Maven dependencies for supply-chain and vulnerability risk before an agent installs them.

Query Google Ads campaigns, metrics, and account performance with GAQL — Google's official MCP.

Query GA4 reports, funnels, and realtime data from an AI agent.

Official Xero MCP — invoices, contacts, bank transactions, and accounting from an agent.

50

Notion

Docs & Notes

Official

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

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

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

53

Shopify

Commerce & Payments

Official

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

Open-source vector search with payload filtering, self-hostable or managed.

Browse, search, and Q&A across Box content from an AI agent — official remote MCP.

Turn Make.com on-demand scenarios into agent-callable tools — official MCP.

Manage Jira, Confluence, and Compass via the official Atlassian Rovo MCP.

In-process analytical SQL over files and Parquet from an AI agent.

Full GitLab API access: repos, MRs, issues, pipelines, and registries.

Production-grade Postgres MCP with index advice, EXPLAIN, and health checks.

Search and read Google Drive files from an AI agent (archived reference implementation).

Run read-only MySQL queries and inspect schemas from an AI agent.

Inspect and manage Kubernetes clusters through kubectl-equivalent tools, with a non-destructive mode.

Build and validate n8n workflows with an agent that knows all 2,000+ n8n nodes — most-installed n8n MCP.

Official Cal.com hosted MCP — AI agents book, reschedule, and query availability across 34 tools via OAuth 2.1, no local install.

Capture context and decisions across sessions — durable agent memory in markdown.

Real-time web search with privacy-focused results.

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

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

Read and post to Discord channels — community management for AI agents.

71

Hugging Face

AI & Machine Learning

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

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

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

Read and write notes in your local Obsidian vault.

75

Figma

Design & Creative

Inspect Figma designs, components, and variables from an agent.

Drive a live Blender session from an agent — create objects, set materials, run Python, render.

AI-driven task management and decomposition for long-running agent projects.

Local-first agent memory as plain Markdown — a semantic knowledge graph you and the agent can both read.

Query Google BigQuery datasets from Claude, Cursor, and VS Code.

Trigger and manage n8n workflows from an AI agent. Community MCP wrapper archived; n8n itself is unaffected.

Open-source workflow automation — trigger and manage from an AI agent. Community MCP wrapper archived; Activepieces itself is unaffected.

Send messages and read channel history from a Telegram bot in an agent.

Self-hosted Slack alternative — read and post from an AI agent.

Vision-first browser automation built for AI agents.

Self-hosted Git server — manage repos, issues, and PRs from an AI agent.

Pipedrive MCP — search deals, contacts, organizations, and activities across the Pipedrive REST API.

Secure cloud sandboxes for executing AI-generated code — npm MCP package archived; vendor recommends the hosted E2B platform.

Turn a vague goal into a dependency-tracked task graph an agent can execute step by step.

Inspect schemas and run SQL against a Snowflake account from an AI agent.

Read dynamic and static secrets from HashiCorp Vault inside agent workflows.

Query Search Console clicks, impressions, and queries from an AI agent.

92

Supabase

Databases

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

93

Slack

Communication

Read and send Slack messages, manage channels and threads.

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

Read, create, and manage events across Google Calendar — via Google's official remote MCP or a self-hosted community server.

Vector database with first-class hybrid (vector + keyword) and modular embeddings (MCP server archived — package no longer published).

Read and create events in Apple Calendar via CalDAV from any MCP client.

Multi-model orchestration — let Claude consult Gemini, GPT, and o-series as sub-agents. Upstream community repository archived; no further maintenance.

Deploy and manage Render web services, static sites, cron jobs, and Postgres from an AI agent. Official MCP server is archived; Render platform is unaffected.

Manage Porkbun domains, DNS, DNSSEC, and SSL — read-only by default. Community MCP repository archived; Porkbun itself is unaffected.

Run QuickBooks Online accounting from an agent — invoices, bills, payments, and financial reports.

Supervisor-and-worker multi-agent coordination across coding CLIs — handoffs over MCP.

Send, read, search, and label Gmail from an AI agent — community MCP with auto-OAuth.

Open-source agentic browser automation that handles login walls and CAPTCHAs.