Developer tools MCP servers

7,056 servers

Build, test, lint and debug code from your client: linters, test runners, package managers and language tools.

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@hassanjamal/api-mcp io.github.hassan-jamal/automated_api_mcp

AI-powered API testing MCP server — automated API test automation that discovers endpoints from source code (no OpenAPI spec needed), tests every endpoint per role (RBAC) with real harvested IDs, and

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Developer tools npm Local 29 a week MIT
@mayp/doklo io.github.mayp-ai/doklo

Doklo — turn your codebase into a trustworthy, queryable product-context layer for AI agents. Local-first, BYOK.

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Developer tools npm Local 29 a week APACHE-2.0
agent-planner-mcp io.github.tagents/agent-planner-mcp

MCP server for AgentPlanner — AI agent orchestration with planning, dependencies, knowledge graphs, and human oversight

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Model and agent tools npm Local 29 a week MIT
code-brain io.github.kitara2005/code-brain

Turn any codebase into searchable knowledge for Claude Code. LLM Wiki + AST Index + MCP Server.

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Developer tools npm Local 29 a week MIT
loadout-ai io.github.virajmishra1/loadout

The package manager for AI coding agent extensions

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Coding agent tools npm Local 29 a week MIT
packdev io.github.dionmaicon/packdev

Find out which dependency versions actually work before you install them — per-version compatibility matrices, duplicate detection, and JSON verdicts for humans and agents.

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Developer tools npm Local 29 a week MIT
scout-ast-cli io.github.scout-ast/scout-ast-n7gzn7

Scout-AST CLI: Context-compression, Tailscale Zero-Trust Mesh, & Multi-MCP Superserver tool

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Developer tools npm Local 29 a week MIT
vision-bridge-mcp io.github.g12789/vision-bridge-mcp

MCP vision proxy v0.2 — fork-merge of mature vision MCPs. Multi-model fallback, compare_images, cache, CLAUDE.md rules for DeepSeek text in VS Code / Claude Code.

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Developer tools npm Local 29 a week MIT
@iflow-mcp/vscode-mcp-server io.github.juehang/vscode-mcp-server

VS Code as a MCP server

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Developer tools npm Local MIT
rn-debug-mcp io.github.zersys/rn-debug-mcp

RN Debug MCP server

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Developer tools npm Local 115 a week MIT
@webkult/phpstan-mcp-server io.github.webkult/phpstan-mcp-server

MCP server for PHPStan analysis - enables Claude to run static analysis directly

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Developer tools npm Local MIT
@airframeui/mcp io.github.airframeui/airframeui-mcp

Airframe UI MCP — stdio server for Cursor, Claude Code, and other MCP hosts. Pattern search, markup validation, token lookup, and theme mapping. Dev dependency or npx.

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Developer tools npm Local 28 a week MIT
@araw/robloxstudio-mcp-inspector io.github.arawstudiosofficial/robloxstudio-mcp-rgz34e

DataModel read-only MCP server for inspecting and debugging Roblox Studio from AI coding tools

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MCP development npm Local 28 a week MIT
@leonio/kern-ux-mcp-http io.github.leonio/kern-ux-mcp-http

Streamable HTTP host for the Kern UX MCP server: component generation and strict accessibility validation over MCP.

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Developer tools npm Local 28 a week EUPL-1.2
@testingbot/mcp-server io.github.testingbot/mcp-server

TestingBot's official MCP Server for AI-powered testing automation

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Developer tools npm Local 28 a week MIT
@iflow-mcp/nendotools-tree-sitter-mcp io.github.iflow-mcp/nendotools-tree-sitter-mcp

Fast in-memory code search and analysis MCP service using tree-sitter

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Developer tools npm Local GPL-3.0
a11y-mcp-server io.github.ronantakizawa/a11ymcp-3p4cr5

An MCP server for accessibility testing using Axe-core

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Developer tools npm Local 113 a week MIT
@barnburner121/plugin-hub-mcp io.github.barnburner121/claude-plugin-marketplace

The largest Claude Code plugin marketplace. 500 plugins, 600+ developer tools in one MCP server. Security, testing, DevOps, CI/CD, databases, frontend, backend, API design, ML/AI, mobile, cloud, serve

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DevOps and infrastructure npm Local 68 a week MIT
@daemux/fastlane-mcp io.github.daemux/daemux-plugins-fastlane-mcp

Fastlane MCP server for App Store Connect management via CLI and REST API

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Developer tools npm Local MIT
@spikedpunch/mast io.github.spikedpunchvictim/mast

MAST — Monorepo AST Search Tool: semantic code search MCP server and CLI

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Developer tools npm Local 27 a week MIT
graphmind-ai io.github.hegazy360/graphmind-cli

GraphMind — local server + CLI for the GraphMind live agent debugger. Instrumented apps stream execution events in; the viewer watches live, replays history, and sends control commands.

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Developer tools npm Local 27 a week MIT
visual-ui-debug-agent-mcp io.github.samihalawa/visual-ui-debug-agent-mcp-1beph9

Visual UI testing and debugging tools for MCP clients, powered by Playwright

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Developer tools npm Local 27 a week ISC
@nahisaho/musubix-pattern-mcp io.github.nahisaho/musubix-pattern-mcp

MUSUBIX Pattern Library Learning MCP - AST-based pattern extraction and abstraction

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Developer tools npm Local MIT
awslabs.frontend-mcp-server io.github.awslabs/mcp-changelog.md-a4kxkp

An AWS Labs Model Context Protocol (MCP) server for frontend

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Developer tools PyPI Local APACHE-2.0
fastmcp-slim io.github.prefecthq/fastmcp

The dependency-slim FastMCP package.

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Developer tools PyPI Local APACHE-2.0
mcp2cli io.github.knowsuchagency/mcp2cli

Turn any MCP server or OpenAPI spec into a CLI

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Developer tools PyPI Local MIT
shuvmcp io.github.prefecthq/fastmcp-kg05b3

A fork of the dependency-slim FastMCP package, adding per-file executable bits and sha256 verification to Skills-as-Resources delivery.

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Developer tools PyPI Local APACHE-2.0
@minhtrungvn6868/gitnexus io.github.abhigyanpatwari/gitnexus-k4bc74

Graph-powered code intelligence for AI agents. Index any codebase, query via MCP or CLI.

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Developer tools npm Local 5 a week POLYFORM-NONCOMMERCIAL-1.0.0
@fancyfields/agent io.github.omarsakrlaravel/fancyfields-agent

Build professional WordPress themes with AI. The FancyFields agent bundles the installer, an MCP knowledge server, and a theme CLI (scaffold, seed, analyze, audit, package) into one tool — set it up i

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Coding agent tools npm Local 26 a week PROPRIETARY
codemap-mcp io.github.ayoubachour/codemap

Local-first persistent codebase memory for MCP-enabled coding agents.

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Coding agent tools npm Local 26 a week MIT
jk-mcp io.github.anjingyeong/jk-mcp

JK local MCP coding runtime with persistent work sessions, guarded edits, orchestration, Git, E2E, and optional OMO delegation.

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Developer tools npm Local 26 a week MIT
loupe-mcp io.github.ahamedmansoor1988/loupe-app-mcp

MCP server for Loupe: compare a Figma frame with a live page, and check accessibility and responsive layout (including localhost), so Claude Code, Codex or Cursor can fix what it finds.

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Developer tools npm Local 26 a week MIT
resend-email-lint io.github.huluwz/resend-email-lint

Lint email HTML before you send it. One rule set, three interfaces: a library, a CLI for CI, and an MCP server for agents.

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Email npm Local 26 a week MIT
windbg-mcp io.github.kanren3/windbg-mcp

MCP server that drives cdb.exe/kd.exe (WinDbg): crash dump analysis, live user-mode debugging, and kernel debugging

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Developer tools npm Local 26 a week MIT
Harvey Tools io.github.meltingpixelsai/harvey-tools

Web scraping, code review, content generation, and analysis tools. Pay-per-call USDC.

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Developer tools Official MCP Registry Remote
Tool Filter MCP io.github.respawn-app/tool-filter-mcp

MCP proxy server that filters tools from upstream MCP servers via regex-based deny list

Crashes on start

Developer tools Official MCP Registry · npm Local 1.1k a week MIT
@deffz-finesse/coderabbit-mcp io.github.deffz-finesse/coderabbit-mcp

MCP server that exposes CodeRabbit IDE extension review comments as tools, resources, and a triage prompt over stdio (Cursor, Claude, VS Code).

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Developer tools npm Local MIT
@iflow-mcp/gql-mcp io.github.blurrah/mcp-graphql

An model context protocol adapted to running and list graphql queries

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Developer tools npm Local MIT
@org-press/mcp io.github.org-press/org-press

MCP server for org-press - exposes code intelligence and tools to AI assistants

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Developer tools npm Local GPL-2.0
@testrelic/mcp io.github.testrelic-ai/testrelic-mcp-server

TestRelic MCP Server — cloud-wired intelligent testing context (test creation, auto-healing, coverage gaps, test impact). One token; everything else is resolved.

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Developer tools npm Local 25 a week AGPL-3.0-ONLY
@yottameta/yotta-present io.github.yottameta/yotta-present

YuanCheng (元呈) — a universal result-presentation layer for AI agents: turn any AI output (JSON / Markdown / plain text) into a standard content object, pick a presentation form (conclusion card / tabl

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Developer tools npm Local 25 a week MIT
cctx-optimizer io.github.anil7948/cctx

Reduce Claude Code token usage by 70-90% with cross-session memory and four-layer optimization: semantic codebase indexing, PostToolUse tool compression, turn summarization, and session consolidation.

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Memory and context npm Local 25 a week MIT
jupyter-collab-mcp io.github.lipa88/jupyter-collab-mcp

MCP server for live JupyterLab notebooks over RTC: read, edit and run cells in the document the user is looking at.

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Developer tools npm Local 25 a week MIT
pmat io.github.paiml/paiml-mcp-agent-toolkit

PMAT - Zero-config AI context generation and code quality toolkit (CLI, MCP, HTTP)

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Developer tools crates.io Local
@sapmcp/sap-search-mcp io.github.saurabh-chothe/sap-search-mcp

SAP Test Case Search MCP Server - Search and retrieve SAP test cases from Azure AI Search vector database

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Search and retrieval (RAG) npm Local MIT
Code Health Suite io.github.neogeweb3/code-health-suite

16 engines, 28 MCP tools for Python code quality. Zero external dependencies.

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Developer tools Official MCP Registry Local
@donyfs/mcp-zephyr io.github.donyfs/mcp-zephyr

MCP server for Zephyr Scale Cloud API - Manage projects, folders, test cases, test steps, and test scripts

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Developer tools npm Local MIT
CAP - Codebase Awareness Protocol (VSCode) io.github.domasles/cap

CAP MCP: Model Context Protocol server for codebase awareness

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Developer tools PyPI · Open VSX Local APACHE-2.0