Best AI tools for mcp reference servers

31 tools in the MCP Servers category, filtered to mcp reference servers.

Apple Notes MCP

Let Claude read your local Apple Notes over the Model Context Protocol.

Free· Free / open-source (MIT). No hosted service; runs locally on your Mac.Personal knowledge retrieval from Apple NotesSearching decade-old meeting notes during a Claude chat

Blender MCP

MCP Servers · Model-agnostic; commonly paired with Claude (Sonnet/Opus) via Claude Desktop, but works with any MCP-capable client

Give Claude hands inside Blender — an MCP server for natural-language 3D modeling.

Free· Free and open-source (MIT license). No hosted service, no subscription; you supply your own MCP-capable client (Claude Desktop, Cursor, VS Code, OpenCode) and pay only for whatever LLM the client uses.AI-assisted 3D scene blockingGenerative prop and mesh creation via Hyper3D Rodin

Brave Search MCP

MCP Servers

Give any MCP client web and local search powered by the Brave Search API.

Freemium· Server itself is free/open-source (MIT). Brave Search API: Free tier 2,000 queries/mo (1 QPS); Data for Search from $3 per 1,000 queries; Data for AI plans from $5 per 1,000 queries with higher rate limits.Grounded web search inside Claude DesktopAgent fact-checking and citation lookup

Chroma MCP

MCP Servers

Official MCP server that gives LLM clients direct access to the Chroma vector database.

Free· Open source (Apache 2.0). Free to run locally or self-hosted; embedding-function API keys (OpenAI, Cohere, Jina, VoyageAI, Roboflow) billed by those providers. Chroma Cloud pricing set separately by Chroma.Long-term memory for Claude DesktopTeam knowledge base shared across agents

Cloudflare MCP Server

MCP Servers

Official suite of remote MCP servers that let Claude, Cursor, and other agents read and control your Cloudflare account.

Freemium· The MCP servers themselves are free and open-source (Apache 2.0). Usage costs follow your existing Cloudflare account plan: Free tier covers most reads and light Workers usage; paid Workers / Cloudflare One / AI Gateway plans are needed for their respective advanced features (e.g. Browser Rendering, AutoRAG, CASB).Debugging Workers with live logs from chatDeploying and configuring Workers bindings

Docker MCP Catalog and Toolkit

MCP Servers

Discover, run, and manage MCP servers as Docker containers.

Freemium· Free for Docker Personal accounts. Docker Desktop paid tiers (Pro ~$9/mo, Team ~$15/user/mo, Business ~$24/user/mo) add team management, enterprise controls, and larger private catalogs.Wiring Claude Desktop into Postgres, GitHub, and StripeGiving Cursor sandboxed shell and filesystem access

DuckDuckGo MCP Server

MCP Servers

MCP server that gives Claude and other LLMs DuckDuckGo web search plus URL content fetching, with no API key required.

Free· Free and open source (MIT). DuckDuckGo's search endpoint is used without API keys, so there are no per-query costs; self-hosting only incurs whatever compute you run it on.Adding live web search to Claude DesktopGrounding an MCP-based research agent

EverArt MCP Server

MCP Servers · FLUX 1.1, FLUX 1.1 Ultra, Stable Diffusion 3.5, Recraft (Real and Vector) via EverArt

Archived MCP server that lets Claude and MCP clients generate images via EverArt's FLUX, SD 3.5 and Recraft models.

Free· MCP server is free and open source; requires an EverArt account and API key (EverArt itself is a paid image-generation service with credit-based pricing).In-chat image generation from Claude DesktopIDE-driven mockup and illustration generation in VS Code

FastMCP

MCP Servers

The fast, Pythonic way to build MCP servers, clients, and apps.

Free· Free and open source under Apache-2.0; no paid tier for the framework itself. Commercial hosting/scaling optionally available via Prefect Horizon.Wrapping internal REST APIs as MCP tools for Claude DesktopBuilding MCP gateways that federate multiple backends

Google Drive MCP Server

MCP Servers

Read, list, and search your Google Drive from any MCP-compatible AI client.

Free· Free and open-source (MIT). Google Cloud/Drive API usage governed by Google's free quotas.Ground Claude in a folder of meeting notesPull the latest spec doc into a coding agent

Hacker News MCP

MCP Servers

MCP server that lets Claude and other LLM clients read Hacker News stories, comments, users, and search results

Free· Free and open-source (MIT). No API keys or accounts required — hits the public Hacker News API and Algolia HN Search directly.Daily Hacker News front-page digest inside ClaudeSummarising the comment thread on a specific Show HN or Ask HN

Linear MCP Server

MCP Servers

Open-source MCP server bridging LLM agents to Linear's issue tracker (now deprecated in favour of Linear's official remote MCP)

Free· Free and open source (MIT). Requires a Linear account and personal API key; Linear itself is free for small teams, $8/user/mo Standard, $14/user/mo Plus.Filing bugs from Claude Desktop or Cursor without leaving the editorAgent-driven triage of the inbox project

mcp-agent

MCP Servers · Provider-agnostic — works with OpenAI (GPT-4o family), Anthropic (Claude 3.5/3.7), Google (Gemini), Azure OpenAI, and AWS Bedrock

Python framework for building composable AI agents on the Model Context Protocol

Free· Free and open source (Apache 2.0). LastMile AI offers an optional managed cloud/deployment tier (Beta) with usage-based pricing not publicly listed at time of writing.MCP-based deep research agentOrchestrator-worker document processing

MCP Everything Server

MCP Servers

The kitchen-sink reference MCP server that exercises every corner of the Model Context Protocol

Free· Free and open source (MIT License). No cloud service or paid tier — you run it locally via npx, Docker, or your MCP client of choice.MCP client conformance testingRegression testing of stdio and Streamable HTTP transports

MCP Fetch Server

MCP Servers

Official Model Context Protocol reference server that lets any MCP-compatible LLM fetch web pages and read them as clean markdown.

Free· Free and open source (MIT License). No hosted tier; you run it locally via uvx, pip, or Docker.Reading documentation pages inside Claude DesktopGrabbing a GitHub README before scaffolding a project

MCP Filesystem Server

MCP Servers

Reference MCP server that gives Claude, Cursor, and other MCP clients scoped read/write access to your local filesystem.

Free· Free and open source (MIT). Self-hosted; no vendor cost.Give Claude Desktop scoped access to a code repoLet Cursor or VS Code agents edit project files via MCP

MCP Git Server

MCP Servers

Reference MCP server that lets any LLM read, search, and manipulate local Git repositories.

Free· Free and open source (MIT License). Self-hosted; you pay only for the compute wherever you run it.AI-drafted commit messages from staged diffsAssistant-led code review of unstaged changes

MCP Memory Server

MCP Servers

Persistent knowledge-graph memory for Claude and other MCP clients

Free· Free and open source (MIT). Self-hosted; no vendor charges. Runs locally via npx or Docker.Persistent Claude Desktop memory across chatsLong-lived coding-agent project memory

MCP Python SDK

MCP Servers

Official Python SDK for building Model Context Protocol servers and clients.

Free· Free, MIT-licensed open source.Exposing internal REST APIs as MCP tools for Claude DesktopWrapping a Postgres or SQLite database as an MCP server

MCP TypeScript SDK

MCP Servers

Official TypeScript SDK for building Model Context Protocol servers and clients.

Free· Free and open source (Apache 2.0 for new contributions; older code MIT).Wrapping an internal REST API as an MCP serverExposing a database to Claude Desktop as tools and resources

Obsidian MCP

MCP Servers

Model Context Protocol server that lets Claude read, write, and reorganize your Obsidian vault.

Free· Free and open-source (MIT). No paid tiers; users only pay for their own Obsidian license if they choose Commercial/Sync/Publish add-ons.Draft new Obsidian notes from a Claude Desktop chatBulk rename or consolidate tags across a vault

Perplexity MCP Server

MCP Servers · Perplexity Sonar family (via Agent and Search API presets)

Official MCP server for Perplexity's Sonar search, research, and reasoning APIs

Paid· Server code is free (MIT). Usage is billed through the Perplexity API: Sonar search from ~$1 per 1,000 requests plus token fees; deep research and reasoning presets are priced per input/output token on Perplexity's API portal.grounded web search inside Claude Desktopcited research briefs in Cursor

Postgres MCP Pro

MCP Servers · Model-agnostic (works with any MCP-capable LLM); optional OpenAI models for experimental LLM-based index tuning

Open-source Postgres MCP server with deterministic health checks, index tuning, and safe SQL execution.

Free· Free and open source (MIT license). No paid tiers.AI-assisted query optimization in Cursor or Claude DesktopAutomated index recommendations for slow workloads

Puppeteer MCP Server

MCP Servers

Reference MCP server that lets LLMs drive a real Chromium browser via Puppeteer.

Free· Free and open source (MIT license). No hosted service; you run it locally under Node/Docker.Give Claude a browser to research JS-rendered pagesHave an agent fill and submit a web form

Redis MCP Server

MCP Servers

Archived reference MCP server exposing basic Redis set/get/delete/list to any MCP-capable LLM client.

Free· Free and open source (MIT). Self-hosted; you supply your own Redis instance.Agent short-term memorySession state for chat agents

Sequential Thinking MCP Server

MCP Servers

Reference MCP server for structured, revisable step-by-step reasoning in any MCP host.

Free· Free and open-source under the MIT License. No paid tiers; install via npx or Docker at no cost.Multi-step engineering planningProduction debugging walkthroughs

Slack MCP Server

MCP Servers

Archived reference MCP server that lets Claude and other MCP clients read and post in a Slack workspace via a bot token.

Free· Free / open-source (MIT). Requires a Slack workspace and a Slack bot token; Slack itself is free/paid.Channel triage and summarisationAutomated thread digests

Spotify MCP

MCP Servers

Model Context Protocol server that hands your LLM the Spotify Web API — playback control, search, queue and playlist management from inside Claude Desktop or any MCP client.

Free· Free / MIT-licensed open source. Requires a free Spotify developer app and a paid Spotify Premium subscription for playback control.Voice-style playback control from Claude DesktopNatural-language playlist building

SQLite MCP Server

MCP Servers

Reference MCP server for querying and analyzing SQLite databases through Claude and other MCP clients.

Free· Free / open source (MIT). No usage fees; runs locally against a SQLite file you control.Ad-hoc SQL exploration of a local SQLite database from Claude DesktopPrototyping agentic business-intelligence workflows

Stripe Agent Toolkit

MCP Servers

Stripe's official SDK and MCP server for wiring AI agents into payments, billing, and customer operations.

Free· Toolkit and MCP server are free (MIT). Underlying Stripe usage is billed at standard Stripe rates (typically 2.9% + 30 cents per successful card charge; billing/subscriptions and other products priced separately). LLM/model calls billed by your model provider.MCP server for Claude Desktop and CursorAI support agent that issues refunds

YouTube MCP Server

MCP Servers

Model Context Protocol server that pulls YouTube subtitles into any MCP-capable LLM client.

Free· Free and open source (MIT). You only pay for whatever LLM sits on the other end of the MCP connection (Claude Desktop, Claude API, or any other MCP-capable client).YouTube video summarisationTranscript extraction for note-taking