Official
Read and write local files with configurable access controls.
filesystem, files, read, write
Best Open-Source MCPs
Open-source MCP servers are where the MCP ecosystem is actually being built. You can read the source, file issues, fork the server to fix a paper cut, and deploy without licensing friction. Everything on this page ships under an OSS license.
74 MCPs in this collectionFilter:
open-sourceTop Open Source MCPs ranked
Popularity-ordered. Click any card for install snippets, fact sheet, and trust signals.
Official
Run `fly mcp server` to expose flyctl operations to AI agents.
fly-io, hosting, flyctl, edge
Query and inspect MongoDB collections from Claude, Cursor, and VS Code.
database, nosql, mongodb, atlas
Inspect keys, run commands, and debug Redis from an AI agent.
database, cache, redis, valkey
Official
Embedded and hosted vector database for AI agents — open source, zero-ops.
vector-db, chroma, embeddings, retrieval
Official
Persistent memory layer for AI agents — auto-summarised, cross-session recall.
memory, mem0, recall, personalization
Local SQLite database access with full read/write support.
database, sqlite, local, storage
Retrieve web pages and convert them to clean markdown.
web, fetch, markdown, scraping
Official
Local Git operations: commit, diff, log, branch, and more.
git, local, commits, diff
Official
Full GitHub API access: repos, PRs, issues, and code search.
git, github, repos, prs
Archived
Anthropic's reference Postgres MCP — archived July 2025 and superseded by Postgres MCP Pro or the Supabase MCP.
database, sql, postgres, archived
Structured step-by-step reasoning for complex problem solving.
reasoning, thinking, agents, planning
Persistent knowledge graph memory across AI conversations.
memory, persistence, knowledge-graph, agents
Official
Manage payments, customers, and subscriptions through Stripe.
stripe, payments, billing, commerce
Official
Official Microsoft browser automation across Chromium, Firefox, and WebKit.
browser, automation, playwright, testing
Official
AI-native browser automation: act, observe, and extract in plain English.
browser, stagehand, browserbase, ai-automation
Official
Manage Heroku apps, dynos, add-ons, and Postgres from an AI agent.
heroku, hosting, paas, postgres
Official
Manage Droplets, App Platform, Kubernetes, and Spaces from an AI agent.
digitalocean, hosting, cloud, kubernetes
Register and manage Name.com domains via the official MCP, auto-generated from their OpenAPI.
name-com, domains, registrar, dns
Send transactional and broadcast emails via the official Resend MCP.
resend, email, transactional, broadcast
Manage Mailgun messaging, domains, webhooks, and analytics from an AI agent.
mailgun, email, transactional, analytics
Official
Neural web search and page fetch for AI agents — official remote MCP at mcp.exa.ai/mcp.
exa, search, neural, retrieval
Official
Search, ask, research, and reason via the official Perplexity MCP.
perplexity, search, research, sonar
Official
Ad-free, high-quality web search and page-to-markdown extraction from an AI agent.
kagi, search, ad-free, extraction
Official
Scrape, crawl, extract structured data, and search the web from an AI agent.
firecrawl, scraping, crawl, extract
Official
Query ClickHouse and ClickHouse Cloud columnar warehouses from an AI agent.
database, warehouse, clickhouse, olap
Official
Search indices, inspect mappings, and run queries against Elasticsearch from an AI agent.
database, search, elasticsearch, elastic
Open-source SAST scanning against custom rules from an AI agent.
security, sast, semgrep, static-analysis
Official
Read, write, and search across Notion pages, databases, and blocks.
notion, docs, databases, knowledge
Triage errors, inspect traces, and query events from Sentry.
sentry, errors, monitoring, observability
Official
Manage Workers, R2 buckets, DNS, and edge policies on Cloudflare.
cloudflare, edge, workers, dns
Official
Read products, orders, and inventory from your Shopify store.
shopify, ecommerce, products, orders
Official
Open-source vector search with payload filtering, self-hostable or managed.
vector-db, qdrant, retrieval, embeddings
Official
Browse, search, and Q&A across Box content from an AI agent — official remote MCP.
box, storage, enterprise, content
Official
Turn Make.com on-demand scenarios into agent-callable tools — official MCP.
make-com, automation, workflows, integromat
Official
Manage Jira, Confluence, and Compass via the official Atlassian Rovo MCP.
atlassian, jira, confluence, rovo
In-process analytical SQL over files and Parquet from an AI agent.
database, olap, duckdb, parquet
Full GitLab API access: repos, MRs, issues, pipelines, and registries.
git, gitlab, repos, mrs
Production-grade Postgres MCP with index advice, EXPLAIN, and health checks.
database, sql, postgres, performance
Archived
Search and read Google Drive files from an AI agent (archived reference implementation).
google-drive, storage, filesystem, documents
Run read-only MySQL queries and inspect schemas from an AI agent.
database, sql, mysql, mariadb
Capture context and decisions across sessions — durable agent memory in markdown.
agent, memory, context, persistence
Real-time web search with privacy-focused results.
search, web, realtime, news
Full browser automation: navigate, click, screenshot, and scrape.
browser, automation, scraping, puppeteer
Up-to-date library docs pulled directly into your AI context.
coding, documentation, libraries, accuracy
Read and post to Discord channels — community management for AI agents.
discord, chat, community, bot
Search, inspect, and run Hugging Face models and datasets from an agent.
huggingface, ml, models, inference
Geocoding, place search, directions, and travel times from Google Maps.
maps, geocoding, places, directions
Real-time and forecast weather data via the OpenWeatherMap API.
weather, forecast, openweathermap, lifestyle
Read and write notes in your local Obsidian vault.
obsidian, notes, markdown, pkm
Inspect Figma designs, components, and variables from an agent.
figma, design, design-to-code, components
AI-driven task management and decomposition for long-running agent projects.
agent, tasks, planning, persistence
Query Google BigQuery datasets from Claude, Cursor, and VS Code.
database, warehouse, bigquery, google-cloud
Archived
Trigger and manage n8n workflows from an AI agent. Community MCP wrapper archived; n8n itself is unaffected.
automation, workflow, n8n, integration
Open-source workflow automation — trigger and manage from an AI agent. Community MCP wrapper archived; Activepieces itself is unaffected.
automation, workflow, activepieces, open-source
Send messages and read channel history from a Telegram bot in an agent.
communication, messaging, telegram, bot
Self-hosted Slack alternative — read and post from an AI agent.
communication, chat, mattermost, self-hosted
Vision-first browser automation built for AI agents.
browser, automation, browser-use, vision
Self-hosted Git server — manage repos, issues, and PRs from an AI agent.
git, gitea, forgejo, codeberg
Archived
Secure cloud sandboxes for executing AI-generated code — npm MCP package archived; vendor recommends the hosted E2B platform.
coding, execution, sandbox, cloud
Inspect schemas and run SQL against a Snowflake account from an AI agent.
database, warehouse, snowflake, sql
Read dynamic and static secrets from HashiCorp Vault inside agent workflows.
security, secrets, vault, hashicorp
Full Supabase access: database, auth, storage, and edge functions.
supabase, database, backend, postgres
Read and send Slack messages, manage channels and threads.
slack, messaging, communication, automation
Manage Linear issues, projects, and cycles from AI context.
linear, project-management, issues, productivity
Read, create, and manage events across Google Calendar.
google-calendar, scheduling, events, productivity
Vector database with first-class hybrid (vector + keyword) and modular embeddings (MCP server archived — package no longer published).
vector-db, weaviate, hybrid-search, retrieval
Open-source scheduling — booking pages, availability, and event types for AI agents. MCP wrapper is archived; the Cal.com platform itself remains current.
calendar, scheduling, cal-com, booking
Read and create events in Apple Calendar via CalDAV from any MCP client.
calendar, apple, caldav, icloud
Archived
Multi-model orchestration — let Claude consult Gemini, GPT, and o-series as sub-agents. Upstream community repository archived; no further maintenance.
agent, orchestration, multi-model, consensus
Archived
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.
render, hosting, deployment, paas
Archived
Manage Porkbun domains, DNS, DNSSEC, and SSL — read-only by default. Community MCP repository archived; Porkbun itself is unaffected.
porkbun, domains, registrar, dns
Send, read, search, and label Gmail from an AI agent — community MCP with auto-OAuth.
gmail, email, community, google
Open-source agentic browser automation that handles login walls and CAPTCHAs.
browser, agent, skyvern, vision
FAQ: Open Source
Why does open source matter for MCP servers?
MCP servers frequently touch credentials (database strings, API tokens) and run tools on your behalf. Open source means anyone can audit what the server actually does with those credentials before you hand them over.
Are all "official" MCPs open source?
Most are — Anthropic's official servers and the GitHub, Supabase, and Linear MCPs are all OSS. A handful of commercial-only MCPs exist, but the MCP norm is open source.
Which OSS license should I look for?
MIT and Apache-2.0 dominate. Both are business-friendly and let you ship derivatives in commercial products. A copyleft license (GPL) is rare for MCPs; if you find one, check that your use fits before bundling.