Tools

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.

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.

Lets agents query Prometheus metrics with PromQL and browse metric metadata and scrape targets to help investigate alerts and performance issues. Supports basic auth, bearer tokens and multi-tenancy; Docker is the recommended way to run it.

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.

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.

Notion's official Claude Code plugin: bundles Notion's hosted MCP with four Cookbook skills (knowledge capture, meeting prep, research write-ups, spec to implementation) and slash commands for searching, creating pages, querying databases and creating tasks. OAuth sign-in.

Google Maps for agents: place search and details, forward and reverse geocoding, routes, distance matrices, multi-stop optimization, weather and static maps, plus trip planning and local SEO ranking skills. Needs Node.js and a billing-enabled Google Maps Platform API key; calls may cost money.

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.

Open-source European e-invoicing tool whose CLI validates, extracts and creates ZUGFeRD, Factur-X and XRechnung invoices (PDF or XML) and renders XML invoices as readable HTML or PDF, for EU invoicing compliance. Needs Java; download the Mustang-CLI jar from the project site.

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.

Design token CLI (formerly Cobalt UI): reads W3C DTCG tokens for color, type, spacing and more, validates them and generates CSS, Sass, JS/TS, Swift, Tailwind and other code via plugins. Runs in CI so design specs flow into code automatically. Needs a Node.js project.

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.

Microsoft Teams MCP open-sourced by Inditex: read messages in a set channel, start threads, reply and @mention members, and list members. Requires an Azure app registration and a Teams bot (usually with IT admin help); runs via Docker or Python 3.12 with uv.

Astronomer's official data engineering plugin: write Airflow DAGs to best practices, debug pipeline failures, trace data lineage, profile warehouse tables and migrate from Airflow 2 to 3, with a built-in Airflow MCP server and session hooks.

Job search plugin: import your resume and preferences, then it finds matching roles, tailors your resume to each, writes cover letters and can fill applications on Greenhouse, Lever and Workday. Needs the Claude in Chrome extension.

Research guardrails for PhD students: reproduce arXiv papers, debug training anomalies with evidence, compare runs at matched epochs, check paper-code consistency, verify BibTeX, find literature gaps and predict reviewer comments. No MCP or extra dependencies; mostly for ML research.

Zapier's official hosted MCP: sign in with your Zapier account via OAuth and let agents run actions in 9,000+ apps to send messages, look up data, create tasks and trigger workflows. Each successful call uses 2 Zapier tasks.

Zapier's official plugin: connects 9,000+ apps through the hosted Zapier MCP so you can send email, book meetings, update sheets, create tickets and trigger workflows in plain language. Includes onboarding and health-check skills. Needs a Zapier account.

Read and write Airtable bases: view table schemas, search, create and update records and add comments, handy for sign-up lists, project tracking, clients and content pipelines. Needs an Airtable account with a personal access token, and Node.js.

Manages Outlook mail, calendar, folders and inbox rules through Microsoft Graph, uploads, searches and shares OneDrive files, and can trigger Power Automate flows. Register an Azure app for a client ID and secret, clone and run it with Node.js, and sign in via the auth server on first use.

Design engineering skill that steers agents away from generic AI-looking UI when building dashboards and landing pages, reviews interfaces for usability and adds motion and polish. npx installs the skill only; slash commands, MCP quality gates and review agents need the CLI or plugin.

Lets agents manage Trello boards, lists, cards, checklists, comments and attachments, switch between boards and workspaces, and handle API rate limits automatically; useful for admin work, event planning and project tracking. Needs a Trello API key and token, plus Node.js.

Deploys HTML or full-stack projects generated by agents to Tencent Cloud EdgeOne Makers and returns a public URL; supports both the international and China sites. Maintained by Tencent Cloud EdgeOne (formerly EdgeOne Pages MCP); sign in via browser or set an API token.

monday.com's official MCP: lets agents read and write boards, items, groups and columns, create forms, and call the full API through a dynamic GraphQL tool. The hosted server with OAuth is recommended; running locally needs an API token.