Dev Tools
| Server | Language | Stars | Downloads |
|---|---|---|---|
| semantic-retrieval-mcp Semantic code retrieval MCP Server — natural language → relevant code snippets, with incremental sync and file watching | TypeScript | — | — |
| Sensei Transforms engineering standards from passive documentation into an active mentor by intelligently injecting relevant portions of a 57-section rulebook based on file types and operations, maintaining session memory of architectural decisions, and providing validation tools for consistent code quality and architectural compliance across development teams. | — | 1 | — |
| Sentence Reverser Reverse any sentence instantly to see words in the opposite order. Generate playful phrasing, test palindromes, or analyze sentence structure. Speed up text manipulation for editing, education, or fun. | — | — | — |
| sentinel-mcp-server MCP server for Sentinel prediction markets — trade as an AI agent via Claude Desktop, Cursor, or Claude Code | Python | — | — |
| Senzing Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting | — | — | — |
| @seojeom/mcp-server Local-first MCP server for Claude/Codex project wiki and graph workflows | TypeScript | — | — |
| Serial Port Communication Enables serial port communication with embedded devices and hardware through configurable connection parameters, multiple data encodings, and session management for IoT development, firmware debugging, and hardware automation. | Rust | 46 | — |
| server Buggregator — a single-binary debugging server for PHP. Captures exceptions, dumps, emails, profiling, logs in real-time UI. Sentry, Ray, VarDumper, SMTP, Monolog, Inspector, XHProf and more. | Go | 1.0k | — |
| server-id-test-1 | — | — | — |
| @shapeitup/mcp-server ShapeItUp MCP server — scripted CAD tools (Replicad/OpenCascade) for Claude Code, Cursor, Claude Desktop, and other MCP clients. | TypeScript | — | — |
| Shipbook Debug production issues using Shipbook logs and Loglytics error insights. | — | — | — |
| @shiplightai/mcp Shiplight MCP server for AI-powered test automation | TypeScript | — | — |
| Sidearm Protect media using watermarking, content disruption, and adversarial hardening algorithms. Verify provenance, detect synthetic content, and perform similarity searches across digital libraries. Manage digital rights and track media history through detailed audit chains. | — | — | — |
| @siftable/mcp-server Siftable MCP server - human planning tasks, executable agent work queues, knowledge, code context, and automation tools | TypeScript | — | — |
| sigil-mcp-server Model Context Protocol server for IDE-like code navigation and semantic search | Python | — | — |
| @signforge/mcp-server SignForge MCP Server — Send documents for e-signature from Claude Desktop, Claude Code, Cursor, and other AI agents | TypeScript | — | — |
| SilbercueSwift The fastest MCP server for iOS/macOS Simulator automation. Native CoreSimulator integration, 20ms screenshots, tap/swipe/type, UI element detection, and full XCUITest support. Distributed via Homebrew: brew install silbercue/tap/silbercueswift | — | — | — |
| @simple-commenter/mcp-server MCP server for Simple Commenter — lets AI agents work with website feedback | TypeScript | — | — |
| Simple Echo Server Return any inbound message duplicated to enhance message processing workflows. Easily integrate with your applications to echo inputs twice for testing or demonstration purposes. Deploy seamlessly with Smithery for scalable and session-based MCP server hosting. | — | — | — |
| @sitepager/mcp-server MCP server for Sitepager — SEO auditing, visual regression testing, and Lighthouse performance monitoring | TypeScript | — | — |
| @skillsmith/mcp-server MCP server for Skillsmith skill discovery | TypeScript | — | — |
| smart-web-mcp Portable MCP server for web search, direct-URL fetch, site crawling, and docs export. | TypeScript | — | — |
| smg-claude-memory-mcp Production-grade vector memory MCP server for Claude Code. Semantic search, per-project isolation, rules enforcement, team sharing via git. | Python | 18 | — |
| smithery-hello Provide a demo implementation of an MCP server showcasing basic MCP features. Enable integration with LLMs by exposing simple tools and resources for testing and development purposes. Facilitate understanding and experimentation with the Model Context Protocol. | — | — | — |
| snapcall-test4 | — | — | — |