Best Oss AI Skills & MCP Servers

Resolve DOIs, search ~155M scholarly works, and fetch references via the Crossref REST API. STDIO or Streamable HTTP.

Give Claude Code superpowers — parallel multi-model queries, smart routing, and image/video generation across OpenAI (GPT-5, o-series, GPT Image), Gemini (Imagen 4, Veo, Nano Banana), DeepSeek, Kimi, Grok, and 12+ providers

Agentic CVE remediation platform for Node.js. Correlates threat intelligence, applies policy-governed fixes, and delivers auditable remediation outcomes across CI/CD pipelines, agent workflows, and service portfolios.

MCP server that detects cross-signal correlations in project health — the thing no individual check can tell you.

CodeSlick CLI tool for pre-commit security scanning — 308 checks across JS, TS, Python, Java, Go

MCP server for AI Sightline — monitor brand visibility across AI platforms (ChatGPT, Google AIO, Perplexity, Claude, Gemini, Copilot)

MCP server for React Native spatial integrity and layout audit. Provides Ground Truth for your component tree by detecting margin pollution, token deviations, bridge crossings, and render traps. 15 tools for structural analysis, layout auditing, performan

Unified MCP server for email access across Gmail, Outlook, iCloud, and IMAP — search, send, organize, and batch-manage emails from any AI assistant

Search bills, legislators, committees, and events across all 50 US states, DC, and Puerto Rico via MCP. STDIO or Streamable HTTP.

MCP server for web search, extraction, crawling, and research — powered by Novada's 100M+ proxy IPs across 195 countries. Works with Claude, Cursor, VS Code, and any MCP client.

VidLens MCP — video as a queryable local asset for AI agents. 45 tools across YouTube, social video URLs, local media, semantic search, transcription, and visual search.

Turn Claude research output into designed PDFs. Cover page, table of contents, code blocks that hold across pages. MCP server and Claude Code skill for markdown to PDF.

AI-powered idea & task manager for developers. Brainstorm → structured tasks → AI agent execution. CodeMirror editor with slash commands, MCP Server, Claude/Gemini/Codex support. Local-first SQLite, cross-PC Git sync.

Cross-Code Organizer (CCO, formerly Claude Code Organizer) — manage AI coding tool configs across Claude Code, Codex CLI, and more. Memories, skills, MCP servers, commands, agents, rules, and hooks across global and project scopes

MCP server for oss-scout — exposes issue discovery and vetting as MCP tools

The enrichment-grade MCP server for academic paper search and full-text extraction. For science.

MCP server for searching academic papers, journals, and citations via the Crossref API

Powerful Cross-IDE Context Sharing via MCP. Persistently sync AI memories and chat sessions between Cursor, VS Code, and more.

MCP server that gives coding agents typed 0xArchive market data tools across Hyperliquid (perps, HIP-3, HIP-4, spot) and Lighter.xyz

dwic — the design auditor for Claude Code. MCP server that audits your design tokens + markup for WCAG contrast failures, mandated-accent drift, and structural gaps, then remembers findings across sessions.

The most comprehensive ServiceNow MCP server — 400+ tools across all modules. Integrates with Claude, ChatGPT, Gemini, Cursor, GitHub Copilot and any LLM.

Local MCP broker for sharing upstream MCP servers across MCP clients

Human-like memory for self-improving AI agents. Automatic capturing, nightly reflection, and cross-agent learning. Works with Claude Code and OpenClaw.

MCP server for LanceDB-backed long-term memory with hybrid retrieval (Vector + BM25), cross-encoder rerank, multi-scope isolation, and memory lifecycle management