Best Ar AI Skills & MCP Servers

Canonical MCP client by SwissTrip — connects AI assistants to Swiss Federal Railways (SBB/CFF/FFS) data: schedules, prices, and ticket links via SBB's SMAPI. Independent third-party MCP server.

MCP server with four cognitive harness tools (harness_reasoning, harness_code, harness_anti_deception, harness_memory) that AI agents call before generating. Two install paths: stdio via `npx -y ejentum-mcp` (Claude Desktop, Cursor, Windsurf, Codex CLI, C

TypeScript MCP server for Cinema 4D with generic entity CRUD, parameter-level access, undo-grouped batch ops, and security controls.

PayClaw as an MCP server. Adds pay/balance/history tools to Claude Desktop, Cursor, Cline, and any MCP-compatible client. v0.2: true gasless via Circle Paymaster + Kernel smart accounts on Base — agents never need ETH. Wraps @grip-labs/payclaw.

MCP server for Obsidian vaults — read, write, search, and surgically edit notes, tags, and frontmatter via the Local REST API plugin. STDIO or Streamable HTTP.

An helpful Vizier MCP server for understanding your Dwarf Fortress game state, via DFHack's remote API

Safari browser automation for AI agents — native macOS, zero Chrome overhead. 80 tools via AppleScript + JavaScript.

Security scanning for the vibe coding era. MCP server + CLI that finds secrets, auth bugs, SQL injection, XSS, IDOR, and vulnerable deps — and opens fix PRs. Works in Cursor, Claude Code, and VS Code. Bring your own model (Anthropic, OpenAI, Gemini, Groq,

AsyncAPI MCP server — Model Context Protocol server for working with AsyncAPI: parse and validate documents, list templates, and generate code and docs (via @asyncapi/parser and @asyncapi/generator) for any MCP-compatible client

Universal Skills MCP Server — load Markdown skills from arbitrary folders, lazy-by-design, cross-tool (Claude Code / Codex CLI / any MCP client).

An MCP server that fetches web pages and converts them to clean, readable Markdown.

Planu — MCP Server for Spec Driven Development with native Rust acceleration for hot paths. Cross-platform (Linux/macOS/Windows, x64/arm64, glibc/musl).

Open-source browser automation MCP server. Control your real Chrome from any AI agent.

Security, cost, and health governance proxy for MCP infrastructure — three-layer detection engine (regex + schema + LLM), monorepo, corpus, CI/CD

Skills library for AI coding agents

Google Search Console MCP server — query search analytics, inspect URLs, manage sitemaps & more via natural language

TRACE32 CMM language server via MCP — parse, diagnostics, completions, hover, symbols, and CLI validation for PRACTICE scripts. Native binary, no Node.js runtime needed.

MCP server giving AI agents (Claude Code, Claude Desktop, Cursor, ChatGPT, Codex, OpenClaw) persistent long-term memory backed by your local Obsidian markdown vault. Hybrid retrieval (BM25 + ML embeddings + BGE reranker, RRF-fused), HNSW + int8 quantizati

Open-source control plane for AI coding agents: budget caps, verifier gates, rollback evidence, and audit trails.

Log10x MCP Server — per-pattern log cost attribution, root-cause investigation, pasted-batch triage, archive query/backfill, and cross-pillar correlation against customer metric backends (Grafana Cloud, Mimir, Thanos, AMP) with structural validation that

MCP server for software architecture design and planning

MCP server for Jungle Grid - submit and manage GPU workloads from any MCP-aware AI host

Hosted multi-tenant MCP (Model Context Protocol) server for the baref00t Partner + Distributor APIs

MCP server exposing the Swarmwage agent hire protocol as tools for any MCP-compatible AI agent (Claude Desktop, Claude Code, Cursor, Cline, etc.)