What is an MCP server?

MCP (Model Context Protocol) is an open standard from Anthropic that lets AI assistants like Claude use external tools and data. An MCP server exposes a set of tools, for example "query this database" or "open this web page", that any MCP client (Claude Code, Claude Desktop, Cursor, VS Code, ChatGPT and others) can call.

What is the difference between local and remote MCP servers?

A local server runs on your machine and talks to the client over stdio; you install it with npx, uvx, Docker or from source. A remote server is hosted by the provider and you connect to it with a URL over Streamable HTTP, usually signing in with OAuth or an API key. Nothing to install.

Are MCP servers free?

Most MCP servers are free and open source. Many of them connect to a service that needs an account or API key (for example GitHub, Slack or a search API), and some hosted servers charge per call. Each listing here is labelled Free, Free server with account needed, or Paid service, estimated from its description.

How do I add an MCP server to Claude Code?

Use the claude mcp add command. For a remote server: claude mcp add --transport http . For a local npm package: claude mcp add -- npx -y . Every server page here has the exact command and an mcp.json snippet for other clients.

Where does this directory get its data?

It merges the official MCP Registry, the modelcontextprotocol/servers reference servers and the largest community lists (punkpeye/awesome-mcp-servers, awesome-remote-mcp-servers and wong2/awesome-mcp-servers), de-duplicated by repository, and is refreshed regularly.

How do I add my MCP server?

Submit it at claudecodeagents.com/mcp/submit, or have your agent POST it to /api/mcp/submit. Submissions are accepted automatically and go live straight away once a quick check confirms the repo or URL is a real MCP server.

MCP Server Directory: 45,000+ MCP Servers for Claude & AI Agents

20,069 servers

Browser

mrfentmen/browser-mcp

Control a local headless Chrome browser: open pages, read titles, and take screenshots.

LocalFreeBrowser Automation

Browser Use

therealtimex/browser-use

AI browser automation - navigate, click, type, extract content, and run autonomous web tasks

LocalAccount neededBrowser Automation

Browserdebug

CloudCorpRecords/browserdebug

Debug web pages in Chrome: performance traces, network, console, snapshots, screenshots.

LocalFreeBrowser Automation

Browserless

pipeworx-io/mcp-browserless

Browserless MCP — wraps the Browserless headless-Chromium REST API (browserless.io)

Local + RemoteFreeBrowser Automation

BrowserMesh

176

scrollDynasty/multi-agent-browser-mcp

Isolated multi-session Chromium runtime for external MCP clients over stdio.

LocalFreeBrowser Automation

Browserstage

CloudCorpRecords/browserstage

Automate a browser with accessibility snapshots: navigate, click, type, fill and wait.

LocalFreeBrowser Automation

BrowserTap

LinVireo/browsertap-mcp

MCP server that drives the real Chrome you already use, through an extension and CDP.

LocalFreeBrowser Automation

Brreg No

pipeworx-io/mcp-brreg-no

Brønnøysund Register Centre (BRREG) MCP — Norway's official business register. Enhetsregisteret…

Local + RemoteFreeOther Tools & Integrations

Bruno

Kta41/mcp-bruno

Python MCP server for running and inspecting Bruno API collections.

LocalFreeDeveloper Tools

BTCFi API

aiindigo925/btcfi-api

Bitcoin data for AI agents. 27 tools with x402 micropayments. No API keys needed.

LocalPaid serviceFinance, Fintech & Payments

Btcmcp

iworkist/btcmcp

An MCP server that provides Bitcoin price data from Binance API

LocalFreeFinance, Fintech & Payments

Bts

pipeworx-io/mcp-bts

U.S. Bureau of Transportation Statistics (BTS) — data.bts.gov open-data portal (Socrata platform).

Local + RemoteFreeData Science & Visualization

Bts Ontime

pipeworx-io/mcp-bts-ontime

bts-ontime -- US airline on-time performance and delay causes (fleet #2953).

Local + RemoteFreeOther Tools & Integrations

Buda

gtorreal/buda-mcp

Buda.com market data: prices, spreads, OHLCV, order books, trades, and volume for CLP, COP, PEN.

LocalFreeE-Commerce & Delivery

buddie

tsyyan/buddie

Checks AI agents' claims against primary evidence, with no model; observes only what you grant.

LocalFreeAI Agents & Coding Agents

Buddy

Lyellr88/buddy-mcp

Claude Code creature collection game. Hatch buddies, pet to boost roll luck, complete the BuddyDex.

LocalFreeAI Agents & Coding Agents

Budget Resolutions

pipeworx-io/mcp-budget-resolutions

budget-resolutions: adopted congressional budget-resolution targets (concurrent resolutions on the…

Local + RemoteFreeOther Tools & Integrations

Budgetary

thriftell/budgetary-clients

Pre-flight token-spend estimate (range, scenario, confidence) for a coding task, or an abstention.

LocalAccount neededProductivity & Project Management

Bug Detector

madhavi-opsera/bug-detector

Analyzes code for bugs, security vulnerabilities, and code smells

LocalFreeSecurity & Identity

Bugfender

bugfender/bugfender-mcp

Access Bugfender logs, crashes, devices, and user feedback from MCP-enabled clients.

LocalAccount neededMonitoring & Observability

BugMojo

viveksinra/bugmojo-sdk

Bug tracking for AI agents: session replay, console/network logs, repro packs, test plans, evidence.

Local + RemoteAccount neededMonitoring & Observability

BugProof

0391

sidinsearch/BugProof

Capture, replay, and debug failures with portable, executable bug artifacts

LocalFreeOther Tools & Integrations

build82

oito2/mcp-build82

MCP server for Moodle plugin development: structural context of a Moodle install for AI agents.

LocalFreeAI Agents & Coding Agents

Buildagents

aurimasAPG/buildagents

Design AI agent teams for a business problem and generate ready-to-paste Claude Code prompts.

Local + RemoteFreeCommunication

BuildPulse

BuildPulseLLC/buildpulse-mcp

BuildPulse CI test analytics for AI agents — flaky tests, CI failures, flakiness, and code coverage.

Local + RemoteAccount neededMarketing

Bulário ANVISA

mcpassure/mcp-anvisa-bulario

Consulta o Bulário Eletrônico da ANVISA: bulas, registros, tarjas e apresentações.

LocalFreeOther Tools & Integrations

Bulgaria Beneficial Owners

pipeworx-io/mcp-bulgaria-beneficial-owners

bulgaria-beneficial-owners -- a Bulgarian legal entity's beneficial owners (действителни…

Local + RemoteFreeOther Tools & Integrations

Bulwark

bpolania/bulwark

AI agent governance: content scanning, audit logs, policy evaluation, session management.

LocalFreeMonitoring & Observability

Bundesbank De

pipeworx-io/mcp-bundesbank-de

Deutsche Bundesbank (Germany's central bank) statistics MCP.

Local + RemoteFreeFinance, Fintech & Payments

Bundlephobia

mrfentmen/bundlephobia-mcp

npm bundle sizes from Bundlephobia. No key required.

LocalFreeDeveloper Tools

Bundlephobia

pipeworx-io/mcp-bundlephobia

Bundlephobia MCP — npm bundle-size analysis

Local + RemoteFreeDeveloper Tools

Bungie

pipeworx-io/mcp-bungie

Bungie.net Platform API MCP.

Local + RemoteFreeDeveloper Tools

Bus

jaimenbell/bus-mcp

MCP server fronting a self-hosted coordination-bus HTTP API: post/read/claim/release/heartbeat.

LocalFreeDeveloper Tools

Busan Essentials

do-droid/busan-essentials

Find the nearest restroom, pharmacy, WiFi, or AED in Busan, Korea. 8,680 places, Korean+English.

LocalFreeOther Tools & Integrations

Business Data

TheNextGenNexus/business-data-mcp-servers

Search local businesses, generate leads, and validate emails via Google Maps data

LocalAccount neededSearch & Web Scraping

Businesswire

pipeworx-io/mcp-businesswire

Business Wire MCP — press releases from Business Wire's all-news RSS feed.

Local + RemoteFreeOther Tools & Integrations

Businys

hiatys/businys-mcp

221 MCP tools across 26 practices for independent professionals. Clients, invoices, contracts.

LocalFreeFinance, Fintech & Payments

Butterbase Oss

butterbase-ai/butterbase-oss

Butterbase MCP server — manage your backend: schemas, auth, functions, storage, RAG, deploys.

Local + RemoteAccount neededKnowledge, Memory & RAG

c3fst Biomedical Search

mjandrews1/c3fst

Biomedical search: FDA drugs, MeSH headings, ClinVar genomic variants with BM25 ranking.

LocalFreeSearch & Web Scraping

Ca Debtwatch

pipeworx-io/mcp-ca-debtwatch

ca-debtwatch — California municipal bond issuance (CDIAC / DebtWatch)

Local + RemoteFreeOther Tools & Integrations

Ca Dmv

pipeworx-io/mcp-ca-dmv

California DMV MCP — registered vehicles and EV adoption by ZIP code, field offices, the official…

Local + RemoteFreeDeveloper Tools

Ca Drug Price Transparency

pipeworx-io/mcp-ca-drug-price-transparency

California manufacturer drug list-price (WAC) disclosures — HCAI Cost Transparency Rx (CTRx)…

Local + RemoteFreeOther Tools & Integrations

ca Eli

matematicsolutions/ca-eli-mcp

MCP server for Canadian federal legislation (Justice Laws Website), verifiable citations.

LocalFreeOther Tools & Integrations

Ca Grants

pipeworx-io/mcp-ca-grants

California Grants Portal MCP — open State of California grant funding opportunities (keyless).

Local + RemoteFreeOther Tools & Integrations

Ca Medical Exclusions

pipeworx-io/mcp-ca-medical-exclusions

California DHCS Medi-Cal Suspended and Ineligible (S&I) Provider List screening — fleet #2805, the…

Local + RemoteFreeOther Tools & Integrations

Ca Procurement

pipeworx-io/mcp-ca-procurement

California State Procurement MCP — State contract awards & purchase orders (keyless).

Local + RemoteFreeE-Commerce & Delivery

Cabin

yolo-maxi/cabin

Search and book real flights with USDC on Base. 500+ airlines, crypto-native payments.

LocalPaid serviceFinance, Fintech & Payments

Cache Tools

rog0x/mcp-cache-tools

Cache headers, CDN, LRU simulation for AI agents

LocalFreeAI Agents & Coding Agents