Developer tool servers give your agent access to code repositories, browser automation, documentation, and the broader development ecosystem. The best ones handle authentication scoping, rate limits, and multi-client configs as standard.
Official GitHub MCP server: repo, issue, PR, action, search, and code review tools backed by the GitHub REST and GraphQL APIs. 29,469 GitHub stars and 33 commits on main in the last 30 days. Replaces the previous community implementation in modelcontextprotocol/servers.
Official Microsoft Playwright MCP server: browser automation, navigation, form filling, screenshots, and JS evaluation through the Playwright protocol. 31,942 GitHub stars, 35 commits on main in the last 30 days. Apache-2.0.
The fast, Pythonic way to build MCP servers and clients. Maintained by PrefectHQ. 25,133 stars and 92 commits on main in the last 30 days. The dominant Python MCP framework.
Official GitHub MCP server. 29,469 stars, MIT, 33 commits on main in the last 30 days. Repo, issue, PR, action, and code search tools backed by the GitHub REST + GraphQL APIs.
Official Microsoft Playwright MCP server. Browser automation tools (navigate, click, fill, screenshot, evaluate JS, network capture) backed by Playwright. 31,942 stars, 35 commits/30d, Apache-2.0.
The fast, Pythonic way to build MCP servers and clients. Maintained by PrefectHQ. 25,133 GitHub stars and 92 commits on main in the last 30 days. The dominant Python MCP framework.
Pack the entire repository into a single AI-friendly file. Optimised context for feeding codebases to Claude, ChatGPT, Gemini, and others. 24,515 GitHub stars and 100 commits on main in the last 30 days.
Powerful MCP toolkit for coding. Provides semantic retrieval and editing capabilities, positioned as the IDE for the agent. 23,971 GitHub stars and 100 commits on main in the last 30 days.
The official Python SDK for Model Context Protocol servers and clients. Maintained by the Model Context Protocol project. 22,984 GitHub stars and 5 commits on main in the last 30 days.
The official TypeScript SDK for Model Context Protocol servers and clients. Maintained by the Model Context Protocol project. 12,422 GitHub stars and 18 commits on main in the last 30 days.
The official specification and documentation for the Model Context Protocol. The source of truth for the protocol that every MCP server in this directory implements. 8,090 GitHub stars and 100 commits on main in the last 30 days.
The community-driven registry service for MCP servers, maintained by the Model Context Protocol project. Discover, list, and validate MCP servers from inside agents. 6,781 GitHub stars and 65 commits on main in the last 30 days.
Open-source curriculum from Microsoft introducing the fundamentals of Model Context Protocol. 16,087 GitHub stars and 100 commits on main in the last 30 days.
Local knowledge graph for Claude Code. Builds a persistent map of the codebase so Claude reads only what matters. 6.8x fewer tokens on reviews and up to 49x on daily coding tasks. 15,924 GitHub stars and 100 commits on main in the last 30 days.
The fullstack MCP framework to develop MCP Apps for ChatGPT, Claude, and MCP Servers. 9,949 GitHub stars and 29 commits on main in the last 30 days.
The official MCP debugging and testing tool maintained by the Model Context Protocol project. Visual inspector for MCP servers: invoke tools, inspect transports, validate protocol behaviour during development. 9,647 GitHub stars and 32 commits on main in the last 30 days.
Go implementation of the Model Context Protocol. Enables seamless integration between LLMs and external data and tools. 8,690 GitHub stars and 58 commits on main in the last 30 days.
MCP server and CLI for agent use of Xcode build tools. Build, test, run, and inspect iOS, macOS, watchOS, and visionOS projects from inside agents. 5,429 GitHub stars and 95 commits on main in the last 30 days. Maintained by Sentry.
Skills, MCP servers, custom agents, and Agents.md configurations from Microsoft for grounding coding agents. 2,269 GitHub stars and 100 commits on main in the last 30 days.
GitLab MCP with 60+ tools covering merge requests, repositories, issues, branches, commits, files, discussions, draft notes, approvals, pipelines, and OAuth multi-user support. 54 commits on main in the last 30 days.
The leading spec-driven development workflow for AI agents. Implements the /opsx:propose → /opsx:apply → /opsx:archive cycle that scaffolds proposals, specs, design docs, and task checklists, then applies them and archives once shipped.
Vendor-official Chrome DevTools MCP server from the Chrome DevTools team at Google. Lets agents control and inspect a live Chrome browser for automation, debugging, and performance analysis.
MCP server for computer use on Windows. Click, type, screenshot, and read from the Windows desktop. 5,482 GitHub stars and 86 commits on main in the last 30 days.
The official Go SDK for Model Context Protocol servers and clients. Maintained by the Model Context Protocol project. 4,524 GitHub stars and 27 commits on main in the last 30 days.
The official C# SDK for Model Context Protocol servers and clients. Maintained by the Model Context Protocol project. 4,261 GitHub stars and 22 commits on main in the last 30 days.
Official spec and SDK for the MCP Apps protocol. Standard for embedding UIs inside AI clients alongside MCP tools. 2,221 GitHub stars and 27 commits on main in the last 30 days.
Unified hub for centrally managing and dynamically orchestrating multiple MCP servers. 2,065 GitHub stars and 41 commits on main in the last 30 days.
Docker official MCP CLI plugin and gateway. Discover, install, and manage MCP servers via the Docker CLI. 1,381 GitHub stars and 31 commits on main in the last 30 days.
Vendor-official Terraform MCP server from HashiCorp. Integrates with the public Terraform Registry (providers, modules, policies) and HCP Terraform / Terraform Enterprise (workspace management, organisation listing, run management, private registry access).
Your browser is the API. CLI and MCP server for AI agents to control Chrome with your own profile, cookies, and extensions. 5,108 GitHub stars and 8 commits on main in the last 30 days.
MCP server for mobile automation and scraping (iOS, Android, Web). Drive mobile apps for testing, QA, and data extraction from inside agents. 4,811 GitHub stars and 8 commits on main in the last 30 days.
Laravel-focused MCP server for augmenting AI-powered local development. Eloquent models, routes, migrations, and Artisan commands surfaced to agents. 3,455 GitHub stars and 19 commits on main in the last 30 days.
macOS CLI and optional MCP server that enables AI agents to capture screenshots of applications or the entire system, with optional visual question answering through local or remote AI models. 3,271 GitHub stars and 100 commits on main in the last 30 days.
MCP server plus CLI tool that indexes local code into a graph database to provide context to AI assistants. 3,195 GitHub stars and 100 commits on main in the last 30 days.
MCP server for interacting with the iOS Simulator. Launch simulators, install apps, run UI actions, and capture screenshots from inside agents. 1,971 GitHub stars and 5 commits on main in the last 30 days.
One-click local MCP server installation in desktop apps. Official MCPB (MCP Bundle) format from the Model Context Protocol project. 1,907 GitHub stars and 13 commits on main in the last 30 days.
MCP server for interfacing with the Godot game engine. Launch the editor, run projects, and capture debug output from inside agents. 3,630 GitHub stars and 2 commits on main in the last 30 days.
Development platform to debug, chat, inspect, and evaluate MCP servers and MCP apps. 1,940 GitHub stars and 100 commits on main in the last 30 days.
Pipedream's official MCP. Run Pipedream sources, actions, and workflows from inside agents. 184 GitHub stars and 2 commits on main in the last 30 days. Apache-2.0 (verified via LICENSE file).
BrowserStack's official MCP server. Run cross-browser tests, inspect results, and trigger app uploads from agents. 138 GitHub stars and 11 commits on main in the last 30 days.
MCP server that enables AI agents to perform comprehensive web audits using Google Lighthouse. Performance, accessibility, SEO, and best-practice scoring. 57 GitHub stars and 6 commits on main in the last 30 days.
MCP server that exposes a V8 JavaScript runtime as a tool for AI agents. Sandboxed JS execution for one-off computation, parsing, and transformation. 43 GitHub stars and 45 commits on main in the last 30 days. 0BSD license.
Official Grafana k6 MCP server for load testing: run k6 scripts, query test results, manage projects, and inspect test runs in Grafana Cloud k6. 33 GitHub stars and 7 commits on main in the last 30 days. AGPL-3.0.
Documentation quality layer that fetches current, version-specific library documentation. Resolves library IDs and returns focused doc sections so your agent works with accurate API references.
AWS Labs server for Infrastructure as Code lifecycle. Validates CloudFormation templates with cfn-lint, checks compliance via cfn-guard against AWS Guard Rules and Control Tower controls, troubleshoots failed deployments with pattern-matched analysis, searches CloudFormation and CDK documentation.
MCP server that provides structured spec-driven development workflows for AI coding agents. 4,170 GitHub stars and 5 commits on main in the last 30 days. GPL-3.0.
All-protocol network analysis tool: browser packet capture, MITM proxy, fingerprint masking, AI analysis, with seamless MCP Server integration for AI agents and IDEs. 2,435 GitHub stars and 100 commits on main in the last 30 days.
Community-built Unity Editor MCP bridge. Combines a Unity package (runs inside the editor) with a Node.js MCP server (translates between MCP clients and the editor) to give agents access to scene, GameObject, and component operations.
Niche dev-tools MCP for RenderDoc: GPU frame analysis and graphics-pipeline debugging from inside an AI assistant. 175 GitHub stars and 27 commits on main in the last 30 days.
Vendor-built Browserbase MCP server combining cloud browser automation (Browserbase) with natural-language-to-action mapping (Stagehand). 6 tools: start, end, navigate, act, observe, extract. Available as a hosted endpoint at https://mcp.browserbase.com/mcp (LLM costs covered for Gemini) or self-hostable via @browserbasehq/mcp.
Claude Code as a one-shot MCP server: lets one agent invoke Claude Code as a tool inside another agent context. 1,272 GitHub stars and 1 commit on main in the last 30 days.
MCP connects AI agents to external tools. The auth spec is solid. The attack surface around it is wide open. Here is what the protocol enforces, what it leaves to you, and how to close the gaps.
Most agent content focuses on what goes wrong. This article covers what works: the patterns, governance, and practices behind agents that run reliably in production.
The navigation guide to MCP server discovery across 12,000+ servers. Compare PulseMCP, Smithery, Glama, MCP.so, the official registry, and every major index to find the right one for your workflow.
The 10 MCP servers that matter most for automation builders. Hands-on evaluation of each server's capabilities, setup friction, and production readiness.
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