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Lets agents send and read channel messages and DMs through your own Discord bot, and manage channels, roles, member timeouts and scheduled events, useful for running a community or player support on Discord. Create a bot in the Discord Developer Portal for a token; needs Docker.

Chroma's official MCP: lets agents create and manage collections, add documents, and retrieve them with vector search, full-text search and metadata filters. Connects to in-memory or local persistent stores, self-hosted instances or Chroma Cloud.

Eight workflow skills for designers prototyping with AI: requirements interviews, briefs, information architecture, design tokens, task breakdown, UI in a chosen aesthetic and design review, chained by design-flow. Outputs go to .design in the project. For Claude Code, Cursor or Codex.

Official Sleek skill: lets agents design mobile app screens in Sleek, manage projects and take preview screenshots, then pull the design HTML and implement it in React Native or SwiftUI. Needs a Sleek account and API key; free accounts get one trial run, ongoing use needs a paid Pro plan.

Community YouTube server built on the YouTube Data API: look up video and channel data, fetch transcripts, browse playlists, and filter creators by subscriber count and upload frequency for influencer scouting. Needs a YouTube Data API key (daily quota) and Node.js.

Official FSFE command-line tool that checks every file in a project for copyright and license information per the REUSE spec, adds headers in bulk, downloads license texts and generates an SPDX bill of materials. Needs Python; have legal review the results.

Resend's official MCP: lets agents send and receive email and manage contacts, broadcasts and sending domains. Use the hosted remote server with OAuth sign-in, or run the npm package locally with a Resend API key.

Official plugin for Postiz, the open-source social media scheduler: agents use the postiz CLI to upload media, schedule posts to 28+ platforms such as X, LinkedIn, TikTok and Instagram, and check analytics. Needs Node.js, the postiz npm package and a Postiz account (or self-host).

Postiz's official agent CLI: lets AI schedule posts to 28+ platforms such as X, LinkedIn, Instagram, TikTok and YouTube, upload images and video, and check post and account engagement. Ships with skills and a Claude Code plugin. Needs Node.js and a Postiz account (cloud or self-hosted).

Official ElevenLabs skills: text to speech, speech to text, sound effects and music generation, voice changing, vocal isolation, multilingual dubbing and building voice agents. Needs an ElevenLabs API key.

MCP server for the Lean 4 theorem prover: lets agents read proof goals, diagnostics and definitions and search theorems via LeanSearch and Loogle, helping mathematicians and students with formal proofs. Needs uv and the Lean toolchain; run it from the Lean project root.

Lets agents create, move and scale components in SketchUp, set material colors, read scene info, export models and run Ruby scripts, for quick massing models. No prebuilt package: pack the extension as .rbz, install it in SketchUp and start the server; needs uv.

Generates favicons, PWA app icons and Open Graph share images for social platforms from a logo, text or emoji, in every required size with text contrast checks, and can add the matching tags to your web project. Needs Python and Pillow.

Explore and analyze local KiCad projects in natural language: inspect schematic connections, export BOMs, run DRC checks, render PCB previews and recognize common circuit patterns. Needs KiCad 9+, Python 3.10 and uv; clone and install, set your project directory in .env, then register it.

68 trading and quant skills focused on crypto and DeFi: market and on-chain data, technical indicators, backtesting, position sizing and risk, prediction markets, and tax tools for cost basis and wash sales. Most need Python and data API keys (often free tiers); get expert review.

Third-party LSP plugin marketplace with 30+ language server plugins, including TypeScript, Python, Rust, Go, Java, C/C++, Vue, Svelte, Elixir and Haskell, covering more languages than the official set. Requires Claude Code 2.1.50+; install the language servers yourself.

Adds /learn commands to 30+ agents including Claude Code, Codex and Cursor: knowledge maps, layered Socratic explanations, quizzes and spaced review, with a visual learning dashboard. Geared to self-study of programming and other technical topics; needs Node.js 20+.

Official Firebase skills: CLI and project setup, Authentication, Firestore, Hosting and App Hosting, Data Connect, Remote Config, Crashlytics, AI Logic, and writing and auditing security rules. Most use the Firebase CLI and need a Firebase project.

Official Firebase skill: install and sign in to the Firebase CLI, create and switch projects, download app config files such as google-services.json, and set up the other Firebase skills for Auth, Firestore, Hosting and more.

Semantic search over past Claude Code, Codex and other agent sessions: indexes each conversation when it ends and recalls past discussions, decisions and trade-offs via MCP tools and a subagent. Embedding and search run locally. By the author of Superpowers.

Develops an original visual language for a brand, campaign, publication, site or product. Without looking at contemporary design, it builds ten typography-only HTML directions; once you lock one, it turns it into a production system. Not for routine UI fixes or existing design systems.

Lets AI do feature-based modeling in SolidWorks: sketches, extrudes, sheet metal, assemblies and drawings, exporting STEP, DXF or PDF, and can rebuild 3D parts from DXF/DWG drawings. Needs Windows, SolidWorks 2026, a Visual Studio build of the C# layer and a Python adapter; early prototype.

Official Tavily skills: let agents search the web, extract page content, discover site URLs, crawl in bulk and run cited deep research through the Tavily CLI (tvly). Install the CLI first; search and extract have a limited no-login tier, other features need sign-in or an API key.

Lets agents work with Salesforce orgs authorized on your machine: SOQL queries, metadata deploy and retrieve, Apex test runs and permission set assignment, plus toolsets for LWC development. Maintained by Salesforce; authorize your org with the Salesforce CLI first.