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

APSA mobile app security audit

ictechgy/apsa

Local, evidence-graded Android/iOS security audits of source, APK, AAB and IPA for AI agents.

LocalFreeSecurity & Identity

Arachne

Samuelfmedeiros/arachne-mcp

Arachne MCP — scraping, browser, vision, OCR, RAG, Social Research, GitHub + VRT (56 tools).

LocalAccount neededBrowser Automation

Arb Alerts

pipeworx-io/mcp-arb-alerts

arb-alerts — persisted Polymarket/Kalshi cross-venue spread alerts.

Local + RemoteFreeMonitoring & Observability

Arbiter AI

godwin105/arbiter_AI

Is this transaction safe to sign? Decodes what it really does and answers allow, warn or block.

LocalAccount neededOther Tools & Integrations

Arbitrum Mpp Transaction Preflight

085

naur9n/arbitrum-mpp-transaction-preflight

Paid Arbitrum transaction simulation and risk scoring for wallets and AI agents.

LocalAccount neededFinance, Fintech & Payments

Arbitype

Renwang-Huang/arbitype

Typed decision tools for AI agents, powered by TypeSafe Jev.

LocalAccount neededAI Agents & Coding Agents

ARC-1

11k

marianfoo/arc-1

MCP server for SAP ABAP systems

LocalAccount neededOther Tools & Integrations

Arcade1v1

agustincf/Arcade1v1

Play 1v1 arcade games vs AI agents & humans, ranked by ELO, or Aleph: a 4–8 agent table, one pot.

LocalFreeAI Agents & Coding Agents

Arcane RMCP

jmagar/arcane-rmcp

Rust MCP server and CLI for Arcane Docker and container management.

LocalAccount neededCloud Platforms

Arcgis Abbotsford

pipeworx-io/mcp-arcgis-abbotsford

City of Abbotsford GIS — Abbotsford, BC (Canada) open geospatial data (ArcGIS).

APSA mobile app security audit

Arachne

Arb Alerts

Arbiter AI

Arbitrum Mpp Transaction Preflight

Arbitype

ARC-1

Arcade1v1

Arcane RMCP

Arcgis Abbotsford

Arcgis Adamscounty

Arcgis Albuquerque

Arcgis Allegheny

Arcgis Asheville

Arcgis Aurora

Arcgis Austin

Arcgis Berkscounty

Arcgis Brampton

Arcgis Branson

Arcgis Carlsbad

Arcgis Cary

Arcgis Castateparks

Arcgis Cedarpark

Arcgis Centennial

Arcgis Chapelhill

Arcgis Charleston

Arcgis Chatham

Arcgis Chestercounty

Arcgis Coquitlam

Arcgis Courtenay

Arcgis Cranston

Arcgis Cumberland

Arcgis Cupertino

Arcgis Darlington

Arcgis Dc

Arcgis Delawareco

Arcgis Detroit

Arcgis Dublinoh

Arcgis Dukescounty

Arcgis Durham

Arcgis Eagan

Arcgis Eastbatonrouge

Arcgis Fairfax

Arcgis Fairfield

Arcgis Fallschurch

Arcgis Fauquier

Arcgis Flagstaff

Arcgis Fontana