MCP development MCP servers

523 servers

Build, test, bridge and proxy MCP servers: SDKs, frameworks, templates and inspectors.

plug.directory lists 523 servers in MCP development, top ranked first.

14 servers run remotely with nothing to install, and 501 servers run on your machine.

9 servers started in our own check.

Filter and sort these servers

Top MCP development MCP servers

Overall mcp-use
Remote, nothing to install Agent Router
Runs on your machine mcp-use

The ten best MCP development MCP servers, side by side

Works in

Claude Code 472 servers
Cursor 472 servers
VS Code 472 servers
Devin Desktop 472 servers

Questions about MCP development MCP servers

How many MCP development MCP servers are there?

523 servers are listed today; 4 of them publish their list of tools.

Which MCP development MCP server ranks first?

mcp-use (io.github.mcp-use/mcp-use-server) ranks first by our published rank, which weighs downloads, listings, documentation, maintenance and known advisories. No position is paid for.

Are there remote MCP development MCP servers?

Yes: 14 servers (3%) run remotely, so a client connects by address with nothing to install.

Which MCP development MCP servers work in Claude Code?

472 servers have an install config that works in Claude Code.

Which MCP development MCP servers work in Cursor?

472 servers have an install config that works in Cursor.

Have these servers been checked?

Our own check has run on 13 servers: 9 started, 2 ask for a sign-in, 2 did not start.

Do MCP development MCP servers state a licence?

393 of 523 servers (75%) state a licence; the rest state none.

All MCP development MCP servers

mcp-use io.github.mcp-use/mcp-use-server

MCP framework and CLI built on the official v2 SDK

Version check not run yet

MCP development npm Local 22k a week MIT
mcp-debugger io.github.debugmcp/mcp-debugger

Step-through debugging for AI agents: breakpoints, stepping and live variables in nine languages

Version check not run yet

Developer tools Official MCP Registry · npm · PyPI Local MIT
MCP Stdio io.github.shigechika/mcp-stdio

Stdio-to-HTTP gateway — connects MCP clients to remote HTTP MCP servers

Version check not run yet

MCP development Official MCP Registry · PyPI Local MIT
@ag-ui/mcp-middleware io.github.ag-ui-protocol/ag-ui-9gj5zj

AG-UI middleware that connects an agent run to one or more [MCP](https://modelcontextprotocol.io) servers. It lists each server's tools, injects them into the run, executes the resulting tool calls se

Version check not run yet

MCP development npm Local MIT
Tool Guardian io.github.LuminariSoftwares/tool-guardian

MCP router that keeps tool definitions out of the context window and finds tools on demand.

Version check not run yet

MCP development Official MCP Registry · npm Local 330 a week MIT
xmcp io.github.basementstudio/xmcp-nx2pfz

The TypeScript MCP framework

Version check not run yet

MCP development npm Local 7.5k a week MIT
workers-mcp io.github.cloudflare/workers-mcp-js1k5y

MCP transport to your own Cloudflare Worker

Version check not run yet

Cloud platforms npm Local 23k a week APACHE-2.0
@hasna/projects io.github.hasna/apps-projects

High-level project management CLI, MCP server, SDK, and AI SDK agent loop for coding agents

Version check not run yet

Coding agent tools npm Local 14k a week APACHE-2.0
@prefecthq/fastmcp-ts io.github.prefecthq/fastmcp-ts

🏎️ The official FastMCP TypeScript library - build MCP servers and clients, fast 🏎️

Version check not run yet

MCP development npm Local 9.6k a week APACHE-2.0
mcp-framework io.github.quantgeekdev/mcp-framework

Framework for building Model Context Protocol (MCP) servers in Typescript

Version check not run yet

MCP development npm Local 34k a week
Palveron Governance Gateway io.github.palveron/governance-gateway

Advisory governance checks for MCP hosts; enforcement runs in the Palveron remote MCP proxy.

Version check not run yet

Model and agent tools Official MCP Registry · npm Local 37 a week MIT
fa-mcp-sdk io.github.bazilio-san/fa-mcp-sdk

Core infrastructure and templates for building Model Context Protocol (MCP) servers with TypeScript

Version check not run yet

MCP development npm Local 979 a week MIT
fastmcp-dominion io.github.vdineshk/daee-engine-fastmcp-dominion

Trust-gated MCP middleware for FastMCP via Dominion Observatory

Version check not run yet

MCP development PyPI Local MIT
@kya-os/mcp-i io.github.modelcontextprotocol-identity/mcp-i

The TypeScript MCP framework with identity features built-in

Version check not run yet

MCP development npm Local 2.6k a week MIT
Agent Router io.github.CSOAI-ORG/agent-mcp-router-mcp

Agent MCP Router MCP — one router for the whole MEOK fleet. Holds 62 MEOK MCPs behind one

0% up · 30 days

MCP development Official MCP Registry · PyPI Local Remote MIT
FastMCP - FastAPI MCP Framework & Runner io.github.Manas-maker/fast-mcp

FastAPI-native Model Context Protocol framework and stdio runner.

Version check not run yet

MCP development Official MCP Registry · PyPI Local MIT
MediaSFU io.github.MediaSFU/mcp-sdk-tools

Video, voice, AI agent and SIP calls: create rooms, place calls, read recordings and usage.

100% up · 30 days

Design and media Official MCP Registry · npm Local Remote 19 a week MIT
eslint-plugin-mcp-sdk-security io.github.ofri-peretz/eslint-eslint-plugin-mcp-sdk-security

ESLint plugin for Model Context Protocol (MCP) SDK security — follows tool arguments into shells, file paths, URLs, SQL and eval; catches credential leaks, untrusted text in model-facing descriptions

Version check not run yet

Model and agent tools npm Local 1k a week MIT
@vantageos/mcp-boilerplate io.github.elpiarthera/vantage-mcp-boilerplate

Clonable MCP server skeleton on the official @modelcontextprotocol/server SDK v2 (protocol 2026-07-28 + 2025 legacy, stdio + stateless Streamable HTTP), with its own OAuth 2.1 authorization server (Cl

Version check not run yet

Developer tools npm Local 877 a week MIT
@indodax-mcp/mcp-core io.github.d1zzy4/indodax-mcp

MCP SDK server construction and dispatch.

Version check not run yet

MCP development npm Local 764 a week SSPL-1.0
@christopher_dondici/mcp-gen io.github.christopherdond/mcp-generator

OpenAPI → MCP Server generator CLI

Version check not run yet

MCP development npm Local 196 a week MIT
@indodax-mcp/mcp-testing io.github.d1zzy4/indodax-mcp-02mab0

In-memory, stdio, and HTTP MCP test harnesses.

Version check not run yet

Developer tools npm Local 646 a week SSPL-1.0
Debugger io.github.Digital-Defiance/mcp-debugger

Node.js and TypeScript debugging with 25+ tools for AI agents

Version check not run yet

Developer tools Official MCP Registry · npm Local 53 a week MIT
asyncmcp io.github.bh-rat/asyncmcp-changelog.md

Async MCP Transport layer for queue and async based systems

Version check not run yet

MCP development PyPI Local APACHE-2.0
@brainervirus/workit-mcp io.github.brainervirus/workit

Workit shared MCP transport for the eight task and policy operation families

Version check not run yet

Project management npm Local 293 a week MIT
@askturret/mcp-transports io.github.askturret/mcp-transports

MCP transport adapters - Streamable HTTP

Version check not run yet

MCP development npm Local APACHE-2.0
@codelitdev/mcp-server-kit io.github.codelitdev/platform-mcp-server-kit

MCP transport, session, auth hooks, and error mapping for CodeLit products

Version check not run yet

MCP development npm Local MIT
@dih-fbn/mcp io.github.faubourg-numerique/mcp

A unified API abstraction over the MCP SDK. It aggregates tools from multiple MCP servers into OpenAI's format, automatically orchestrates tool calls and responses, and injects resources directly into

Version check not run yet

Communication and chat npm Local ISC
@eargollo/vikunja-mcp io.github.eargollo/vikunja-mcp

Security-first MCP server for Vikunja — full API coverage, read-only by default with opt-in write/delete, and just one dependency (the official MCP SDK).

Version check not run yet

Developer tools npm Local MIT
@george43g/mcp-kit io.github.george43g/mcp-cli-starter-template-mcp-kit

MCP server building blocks: tool registry types, dispatcher with timeout/perf/abort/error-wrap baked in, stdio + Streamable HTTP transports, sanitize() for user content, UUID-gated prompt-injection he

Version check not run yet

MCP development npm Local MIT
@helixid/mcp-middleware io.github.helixid/helix-sdk-js-mcp-middleware

HelixID middleware for Model Context Protocol (MCP) servers — inbound VP verification with scope enforcement and outbound VP attachment for agent-to-tool calls.

Version check not run yet

MCP development npm Local APACHE-2.0
@hlao/mcp-sdk-adapter io.github.joelbyler272/hlao-mcp-sdk-adapter

Reference adapter from the official @modelcontextprotocol/sdk Client to the @hlao/mcp-gateway McpClient port. Peer-dep on the SDK so downstream apps pin their own version.

Version check not run yet

MCP development npm Local MIT
@inno-optimize/mcp-framework io.github.innovativenectar/inno-optimize-mcp-framework

MCP server registry & tool routing — MCP server registry with progressive 3-layer discovery, capability matching, and dynamic tool routing for multi-agent systems.

Version check not run yet

MCP development npm Local SEE-LICENSE-IN
@johnhenry/mcpq io.github.johnhenry/mcp-query-0v83hz

A reactive, cached, embeddable MCP client for non-agentic apps. TanStack Query keys + RTK Query tags + LSP-client lifecycle, on top of the official MCP SDK.

Version check not run yet

Developer tools npm Local MIT
@longtable/mcp io.github.hosungyou/longtable

LongTable MCP transport for workspace state and Researcher Checkpoints

Version check not run yet

MCP development npm Local MIT
@mcp-restrictor/transports io.github.sw1tchdev/mcp-restrictor-transports

MCP transport bridges for MCP Restrictor.

Version check not run yet

MCP development npm Local MIT
@nestm/mcp-apps io.github.nestm-dev/mcp-mcp-apps

Stable MCP Apps server metadata, validation, fragments, and direct-server feature composition for MCP SDK v2.

Version check not run yet

MCP development npm Local BSD-3-CLAUSE
@noedgeai-org/doc2x-mcp io.github.noedgeai/doc2x-mcp

Doc2x MCP server (stdio, MCP SDK).

Version check not run yet

MCP development npm Local MIT
@oxy.so/mcp io.github.oxyhq/oxy-mcp

Canonical Oxy app catalog to MCP transport and OAuth resource validation

Version check not run yet

MCP development npm Local SEE-LICENSE-IN
@princeofscale/robloxstudio-mcp-inspector io.github.princeofscale/robloxstudio-mcp-b3k3ym

Read-only MCP server for AI agents to inspect and debug Roblox Studio — safe browsing with zero write risk.

Version check not run yet

MCP development npm Local MIT
@reaatech/mcp-server-transport io.github.reaatech/mcp-server-starter-ts-transport

MCP transport implementations (Streamable HTTP, SSE) with session management

Version check not run yet

MCP development npm Local MIT
@reaatech/multi-tenant-mcp-middleware io.github.reaatech/multi-tenant-mcp-middleware

Composable multi-tenant middleware for MCP servers

Version check not run yet

MCP development npm Local MIT
@reventlessdev/rescript-mcp-sdk io.github.reventlessdev/reventless-core-mcp-sdk

ReScript bindings for @modelcontextprotocol/sdk

Version check not run yet

MCP development npm Local APACHE-2.0
@sperax/mcp-proxy-core io.github.sperax/speraxos-mcp-proxy-core

Shared stdio-to-HTTP proxy runtime for SperaxOS MCP servers.

Version check not run yet

Model and agent tools npm Local MIT
@sudarshanchaudhari/temporalthread-mcp-server io.github.sudarshanchaudhari/temporalthread-mcp-server

Local stdio MCP transport for TemporalThread.

Version check not run yet

MCP development npm Local MIT
@szugeri/mcp-core io.github.szugeri/starter-template-mcp-core

Shared runtime discipline for MCP servers: response envelope, closed error taxonomy, secret-masking stderr logger, stdio guard, fail-closed env config, OAuth 2.0 refresh-token client.

Version check not run yet

MCP development npm Local MIT
@tigerdata/mcp-boilerplate io.github.timescale/mcp-boilerplate-node-3s71me

MCP boilerplate code for Node.js

Version check not run yet

Developer tools npm Local APACHE-2.0
@tinysnake/pi-mcp io.github.tinysnake/pi-snake-extensions-pi-mcp

MCP integration for pi: load-once whole-server schema, then call — in-process MCP SDK connector with OAuth 2.1, no daemon needed

Version check not run yet

MCP development npm Local MIT