📖 The AI Tool Bible

MCP Servers

Model Context Protocol servers exposing tools, resources, and prompts to AI agents.

48 tools

Why it matters

MCP (Model Context Protocol) is Anthropic's open standard for exposing tools, data, and prompts to LLM agents. The server ecosystem exploded in 2025-2026; picking the right servers is now as important as picking the right model.

What's in here

Covers official reference servers (filesystem, github, postgres, slack), registries + directories (Smithery, PulseMCP), server frameworks (fastmcp, mcp-python-sdk), and vertical servers for databases, browsers, cloud APIs, and enterprise systems.

How to pick

Pick official reference servers for common integrations (git, filesystem, sql). Pick Smithery or PulseMCP to browse and install. Pick fastmcp when writing your own server. For internal APIs, ship an MCP wrapper rather than raw REST — every Claude-native workflow gets it for free.

Airtable MCP Server

Model Context Protocol server that gives LLMs full read/write access to your Airtable bases.

Free· Open source (MIT) and free to run. You still need an Airtable account and personal access token; Airtable itself is Free / Team $20 per user/mo / Business $45 per user/mo / Enterprise (custom).Natural-language CRM queries against AirtableLLM-driven lead triage and enrichment

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

AWS MCP Servers

Official AWS Labs collection of Model Context Protocol servers for connecting AI coding assistants and agents to AWS services and documentation.

Free· Free and open source (Apache 2.0). AWS service usage billed at standard AWS rates. Optional AWS-hosted 'remote managed' servers included at no additional charge beyond consumed AWS services.AWS infrastructure-as-code scaffolding with CDK or CloudFormationGrounded answers from live AWS documentation

Azure MCP Server

Official Microsoft MCP server that exposes 40+ Azure services to AI agents under the developer's own Entra ID credentials.

Free· Server is free and MIT-licensed. Azure resource usage is billed separately at standard Azure rates based on whatever services the agent queries or mutates.Natural-language Azure resource inventoryLog Analytics and Kusto (KQL) querying from an agent

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

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

Freemium· Free: $ 0 USD · Team: $ 4 USD per user/month · Enterprise: $ 21 USD per user/monthGrounded web search inside Claude DesktopAgent fact-checking and citation lookup

Chroma MCP

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

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

Freemium· Free: $0 USD · Team: $4 USD per user/month for the first 12 months* · Enterprise: $21 USD per user/month for the first 12 months*Debugging Workers with live logs from chatDeploying and configuring Workers bindings

Docker MCP Catalog and Toolkit

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

Freemium· Docker Personal: $0 · Docker Pro: $11 · Docker Team: $16 · Docker Business: $24Wiring Claude Desktop into Postgres, GitHub, and StripeGiving Cursor sandboxed shell and filesystem access

DuckDuckGo MCP Server

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

Exa MCP Server

MCP Servers · Exa neural search index (in-house)

Web search, code search, and company research for AI assistants over MCP

Freemium· Free: $0 USD · Team: $4 USD per user/month · Enterprise: $21 USD per user/monthLive web search inside Claude DesktopRAG grounding for research agents

FastMCP

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

Firecrawl MCP Server

MCP server that gives Claude, Cursor, and other AI agents native web scrape, crawl, search, and extract tools via Firecrawl.

Freemium· Free: $0 USD · Team: $4 USD per user/month · Enterprise: $21 USD per user/monthLive documentation lookup inside Claude DesktopCompetitor pricing extraction during a Cursor coding session

Framelink Figma Context MCP

MCP server that feeds Figma layout, styles and components into AI coding agents like Cursor and Claude Code.

Free· Free and open source (MIT). Optional Framelink hosted extras are gated behind a waitlist with no published pricing.Figma-to-React component generation in CursorMarketing landing page implementation from a Figma frame

GitHub MCP Server

GitHub's official Model Context Protocol server for connecting AI agents to repositories, issues, PRs, Actions, and security data.

Free· Free and open source (MIT). Uses your existing GitHub account; no separate charges. GitHub API rate limits and any Copilot/Enterprise licensing you already pay for still apply.AI code review assistantAutomated issue triage and labeling

Google Drive MCP Server

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

Grafana MCP

Official Grafana Labs MCP server — dashboards, Prometheus, Loki, alerts and incidents in your LLM client

Free· Free and open source (Apache 2.0). You still need a Grafana instance — OSS Grafana is free; Grafana Cloud has a free tier plus paid Pro/Advanced/Enterprise plans.Incident investigation from Claude DesktopConversational PromQL and LogQL querying

Hacker News MCP

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

Home Assistant MCP

Open-source MCP server that lets any LLM control and observe a Home Assistant smart home in real time.

Free· Free and open source (Apache 2.0). Self-hosted; only cost is your own Home Assistant instance and the LLM client you connect to it.Conversational smart-home control from Claude Desktop or CursorLLM-driven Home Assistant automations

Kagi MCP Server

Official Kagi Search MCP server: search and extract the web from any MCP-compatible agent.

Paid· Free: $0 USD · Team: $4 USD per user/month · Enterprise: $21 USD per user/monthagent web search groundingClaude Code documentation lookup

Linear MCP Server

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

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