Tools

Audits Web Audio API code for procedural UI sound synthesis: reusing one AudioContext, resuming when suspended, disconnecting nodes, exponential decay envelopes, noise for clicks and parameter choices, with findings reported as file:line.

Guides the agent in building SVG icon components that morph between any two icons by moving lines instead of crossfading. Every icon uses exactly three lines, unused ones collapse to the center, and grouped variants rotate with springs. Examples use React and Motion and respect reduced motion.

Audits UI code for audio feedback: every sound needs a visual equivalent, an off switch and volume control, and should respect reduced motion. Sound is for confirmations and errors, not typing or decorative hovers. Also checks preloading, default volume and sound weight. Reports file:line findings.

Audits animation code for the right timing function: springs for gestures and interruptible motion, easing for system-driven state changes, linear for progress, and no animation for high-frequency interactions. Also checks spring parameters and durations. Reports file:line findings.

CoinGecko's official MCP: query prices, market caps, exchanges and price history for 10,000+ crypto assets, plus on-chain DEX data. Connect to the free keyless public server (shared rate limits) or use a Pro API key for higher limits and the full toolset. For research only, not investment advice.

Alibaba Cloud's official MCP server: through the DataWorks Open API, agents manage data development nodes and workflows, operate scheduled instances, query Data Map metadata and lineage, and configure data quality rules. Needs an Alibaba Cloud AccessKey.

Helps agents add Auth0 authentication to apps: detects 35+ frameworks and covers login, MFA, SSO, RBAC, JWT validation, migration from other auth providers, and tenant security audits. Maintained by Auth0; needs an Auth0 account (free sign-up).

Netlify's official plugin with skills for Functions, Edge Functions, Blobs, databases, forms, caching, netlify.toml configuration and deploys, plus the hosted Netlify MCP (OAuth sign-in on first use).

Official MCP for Paddle, the merchant of record: manage products and prices, customers, subscriptions, transactions and refunds from chat, download invoice PDFs and generate financial reports. Needs a Paddle Billing account and API key; start in sandbox with read-only or non-destructive tools.

EODHD's official plugin (remote MCP, 7 workflow skills, an analyst subagent): quotes, fundamentals and macro data from 70+ exchanges worldwide, company briefs, stock screening and portfolio risk analysis. Needs an EODHD account; free tier: 20 calls/day, basic US data only. Not investment advice.

Supabase's official plugin: Supabase and Postgres best-practice skills plus the Supabase remote MCP to manage projects, run SQL, design schemas and RLS policies, and handle auth and storage. Needs a Supabase account.

Legal education skills from Harvard's Library Innovation Lab: help teachers build casebook-based syllabi, run Socratic Q&A and mock exam feedback for students, help self-represented litigants frame issues and learn legal research, plus CLE plans for lawyers. US law school focus; not legal advice.

Official CLI for Weblate, the open-source translation platform: check translation progress for projects and components, upload and download translation files, lock components, and commit or push repository changes. Hosted or self-hosted; needs the server URL, an API key and Python.

Amplitude's official plugin with a remote MCP and nearly 30 analysis skills: build charts and dashboards in plain language, interpret A/B experiments, summarize user feedback, and generate daily or weekly data briefs. Needs an Amplitude account with data (free plan exists); browser sign-in.

Provides twelve drop-in CSS transitions, including card resize, number pop-in, badges, dropdowns, modals, panel reveals, page slides, icon swaps, success checks and error shakes, configured through shared CSS custom properties with no framework dependency and reduced-motion guards.

Lets agents read a Moodle course's student list, assignments and quizzes, view submissions and attempts, and grade assignments, write feedback and comment on quizzes. Needs a Moodle web service token from an admin and Node.js; build from source. Each config covers one course.

NASA's official MCP for its Common Metadata Repository: find Earth science and remote sensing datasets in plain language, check that data files exist for a given place and time, and get access services, related tools and citation info. No account to connect; downloads need an Earthdata login.

From IMG.LY: gives agents the CE.SDK design engine to create editable posters, flyers, social graphics and videos by chat, resize for each platform, import PSD, InDesign and PDF, and export print-ready PDFs with CMYK and bleed. Needs Node.js 22.15+ (WSL on Windows); the engine is free locally.

GitGuardian's official MCP: scans code for leaked secrets with 500+ detectors, and lets agents triage and remediate incidents, generate honeytokens and open fix PRs. Needs a GitGuardian account; the hosted endpoint with OAuth sign-in is recommended.

Postman's official plugin: sets up the Postman MCP server so Claude Code can sync collections, run API tests and diagnose failures, generate client code, create mocks and docs, and run OWASP API security checks. Needs a Postman account.

Snowflake's official plugin: detects Snowflake-related requests and hands them to the Cortex Code CLI, whose 55+ built-in skills handle SQL, dynamic tables, data governance and more. Needs the cortex CLI installed and a Snowflake connection configured.

Lets agents upload, download and list files in Tencent Cloud Object Storage (COS), and use Cloud Infinite for image processing, QR code recognition, document-to-PDF conversion, video frame capture and natural-language search. Maintained by Tencent Cloud; needs a SecretId and SecretKey.

Amazon's official seller plugin (beta): connect Seller Central to check sales, traffic and inventory, get stockout alerts and restock suggestions, plan FBA inbound shipments and diagnose suppressed or unsearchable listings. Changes are drafted and need your approval. Needs a seller account.

Builds compact, polished landing pages for dev tools, package demos and micro-SaaS. Picks a design fingerprint (composition, palette, type, radius, surfaces, motion) so each run looks different, features a product-native demo, and keeps zero layout shift, focus states and reduced motion.