Herramientas

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.

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.

Connects Stata to VS Code or Cursor and exposes a local MCP endpoint so Claude Code or Codex can write and run do-files and read regression output, with graphs shown in the editor; for empirical research. Needs a licensed Stata 17+, the extension installed and the editor open.

Official MCP and skills from freee, Japan's cloud accounting service: accounting, invoices, HR and payroll, timesheets, fixed assets and tax filings. Remote server with freee OAuth recommended; freee Sign e-contracts are local-only for now. Have an accountant check results.

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.

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.

MCP for an open-source tax guide library: when answering income tax, VAT and payroll tax questions, agents cite up-to-date guides covering 200+ jurisdictions, some reviewed by named licensed accountants. Hosted, no install. Reference only; check with an accountant before filing.

Open-source accounting for Swedish sole traders and limited companies: 150+ MCP tools let AI categorize bank transactions, draft entries, reconcile and prepare VAT, payroll and year-end filings, all writes needing your approval. Hosted (OAuth) or self-hosted; accountant review advised.

Writes in-depth stock reports and earnings reviews: nine chapters on business, competition, governance, earnings quality and valuation, with DCF and EPV recomputed by script and key figures sourced. PDF output; US, Hong Kong and A-shares. Needs web access and Python; get expert review.

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.

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.

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.

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.

Lets agents read and write QuickBooks Online customers, invoices, bills, journal entries and more, and generate balance sheets, P&L and cash flow reports. Official from Intuit; register a developer app for OAuth, then build from source and run locally.

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.

Two skills for the MCM/ICM and China's CUMCM math modeling contests: solver breaks down problems, picks models from a 95+ scenario decision matrix and gives Python or MATLAB templates; paper coaches abstracts, model validation and formatting from winning papers. Needs Python or MATLAB.

Install the QGIS MCP plugin from the QGIS plugin repository and agents get 125 tools to manage layers, edit features, run processing algorithms, style maps, build layouts and atlases, and run SQL across layers; supports QGIS 3.28 to 4.x. Needs QGIS and uv; no repo download required.

Browser automation MCP built on Selenium WebDriver for Chrome, Firefox, Edge and Safari: locate elements, click and type, upload files, take screenshots, run scripts, and handle alerts and cookies. A good fit for test teams already using Selenium.