Best Developer Tools MCP Servers

Provides accessibility testing capabilities for web content using Axe-core, enabling evaluation of websites and HTML snippets against WCAG standards with detailed violation reports and remediation guidance.

Provides 50+ developer utilities including cryptographic operations, text processing, data format conversion, network calculations, and encoding functions through a containerized TypeScript server with security features and rate limiting.

Enables interaction with Prefect workflow orchestration platform for retrieving flow information, managing flow runs, searching deployments, and executing workflows directly from conversational interfaces.

Translates JSON internationalization files using multiple translation providers (Google Gemini, OpenAI, Ollama/DeepSeek) with intelligent caching, deduplication across files, and format preservation to minimize API costs while maintaining exact JSON structure and consistent results across target languages.

Transforms development from idea to implementation through structured phases including goal collection, EARS format requirements gathering, technical design documentation, task planning, and systematic code execution with template-based guidance and organized specification documents.

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Spec-Driven Development

Remote

Transforms development from idea to implementation through structured phases including goal collection, EARS format requirements gathering, technical design documentation, task planning, and systematic code execution with template-based guidance and organized specification documents.

Enables secure execution of shell commands on host systems for tasks like system diagnostics, file manipulation, and automation.

Provides direct browser control through a Chrome/Firefox extension and WebSocket bridge, enabling real-time web automation, form interactions, DOM snapshots, and screenshot capture on the user's actual browser tab rather than a headless environment.

Enables Claude to execute XPath queries on XML and HTML content, supporting both direct parsing and web scraping through Puppeteer for structured data extraction from documents and websites.

Databutton

Official

Enables planning and scaffolding of business applications with React frontends and Python backends, helping developers establish structured foundations for Databutton-powered projects.

Provides structured workflow guidance for disciplined software engineering practices through four specialized methodologies (refactoring, feature creation, test writing, and test-driven development) with phase-specific validation, file operation safety rules, and session state tracking for systematic code development.

Control Windows command-line interfaces securely.

Integrates with Podman's API to enable container creation, management, and orchestration for automated DevOps workflows and microservices architecture deployment.

Moralis Web3 API

Official

Integrates with Moralis Web3 API to enable blockchain data access, token analysis, and smart contract interactions without requiring deep Web3 development knowledge

Provides stateless access to CodeSandbox SDK operations for creating, managing, and interacting with cloud-based development sandboxes through 13 tools covering VM lifecycle management, file system operations, and session handling with configurable tiers and hibernation settings.

Fetches coding rules and best practices on-demand from GitHub repositories, providing remote access to development standards with intelligent caching and support for multiple file formats without requiring local rule files.

Integrates with Perplexity's web search API to enable real-time fact-checking, research, and content generation using up-to-date information.

Integrates with Figma's API to enable viewing, manipulating, and collaborating on design files through comprehensive access to file operations, comments, components, and team resources.

Integrates with GitHub's API to enable repository operations, file management, issue tracking, and code search directly within conversations through flexible authentication and over 30 specialized tools.

Provides secure command execution in WSL with built-in safety features like path validation, timeouts, and error handling.

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Apple Developer Documentation (RAG)

Remote

Provides semantic search and retrieval for Apple Developer Documentation using vector similarity search, keyword matching, and reranking to deliver relevant technical documentation and API references