Best JavaScript MCP Servers
JavaScript is a high-level, interpreted programming language that is one of the core technologies of the World Wide Web. It's a versatile language that allows developers to create interactive elements on websites and is widely used for web development, game development, and creating web applications.
Why this server?
Supports JavaScript rendering for dynamic content when converting webpages to Markdown.
AsecurityAlicense-qualityThis server converts webpages into clean, structured Markdown optimized for language model consumption, removing unnecessary content and supporting JavaScript rendering.Last updated 8 months ago112MITWhy this server?
Enables execution of JavaScript code in the browser context to interact with web pages, monitor console logs, and perform dynamic testing operations.
AsecurityAlicense-qualityA security testing tool that enables automated vulnerability detection including XSS and SQL injection, along with comprehensive browser interaction capabilities for web application penetration testing.Last updated a year ago11249822MITWhy this server?
Provides capability to execute JavaScript code with optional dependencies in a secure environment

Dumpling AI MCP Serverofficial
AsecurityAlicense-qualityIntegrates with Dumpling AI to provide data scraping, content processing, knowledge management, and code execution capabilities through tools for web interactions, document handling, and AI services.Last updated 9 months ago274829MITWhy this server?
Allows execution of JavaScript in the browser environment via the browser_evaluate tool
AsecurityAlicense-qualityEnables LLMs to interact with web pages, take screenshots, and execute JavaScript in a real browser environmentLast updated 10 months ago310498282MITWhy this server?
Supports building JavaScript LLM applications with vector database memory capabilities powered by Chroma, enabling embedding-based retrieval for context augmentation.

Chroma MCP Serverofficial
AsecurityAlicense-qualityA server that provides data retrieval capabilities powered by Chroma embedding database, enabling AI models to create collections over generated data and user inputs, and retrieve that data using vector search, full text search, and metadata filtering.Last updated 7 months ago13532Apache 2.0Why this server?
Generates JavaScript code snippets for interacting with blockchain APIs
AsecurityAlicense-qualityEnables natural language access to blockchain data and insights through the Seitrace API. Supports querying address details, token information (ERC-20, ERC-721, ERC-1155, CW20, CW721), transaction data, and smart contract details across multiple blockchain networks.Last updated 7 months ago5279MITWhy this server?
Enables native control and debugging of JavaScript execution within Chromium-based browsers, allowing for setting breakpoints, stepping through code, and evaluating expressions in local scopes.
AsecurityAlicense-qualitychrome-debug-mcp is an asynchronous Rust-based Model Context Protocol (MCP) server that allows AI agents and Large Language Models to natively debug Chromium-based browsers via the Chrome DevTools Protocol (CDP).Last updated 19 days ago26243MITWhy this server?
Allows use of JavaScript interpreter to calculate objective values for optimization problems.

Optuna MCP Serverofficial
AsecurityAlicense-qualityA Model Context Protocol server that enables automated optimization and analysis using Optuna, allowing LLMs to perform hyperparameter optimization and interactively analyze optimization results via chat interfaces.Last updated 5 months ago2670MITWhy this server?
Analyzes JavaScript files for import statements and require statements to determine file dependencies
AsecurityAlicense-qualityAnalyzes source code dependencies across multiple programming languages in the specified directory to identify file relationships, assisting in dependency management and project structure understanding.Last updated a year ago11MIT