MCP servers and skills: search, filter by where they run, and compare.
Lets an agent control Chrome and inspect performance traces, network requests and console output via DevTools.
OfficialNode.jsApache-2.0No key
Reference test server that exposes sample prompts, resources and tools for checking MCP clients.
OfficialNode.jsMIT AND Apache-2.0No key
Creates and edits Excalidraw diagrams on a live canvas, from Mermaid or element-by-element.
Node.jsMITNo key
Fetches a URL and converts the page content to markdown for LLM use.
OfficialPythonMIT AND Apache-2.0No key
Reads, writes and searches files inside directories the user explicitly allows.
OfficialNode.jsMIT AND Apache-2.0No key
Reference server from the MCP project for reading diffs and history and making commits and branches in local Git repos.
OfficialPythonMIT AND Apache-2.0No key
Converts PDFs, Office files, HTML and other URIs to Markdown for LLM input.
OfficialPythonMITNo key
Persistent memory for agents as a local knowledge graph of entities, relations and observations.
OfficialNode.jsMIT AND Apache-2.0No key
Converts documents between formats (e.g. Markdown, DOCX, HTML, PDF) by calling the pandoc binary.
PythonMITNo key
Drives a browser through accessibility snapshots so LLMs can navigate, click, type and screenshot pages.
OfficialNode.jsApache-2.0No key
Structured step-by-step reasoning tool that lets a model revise and branch its own plan.
OfficialNode.jsMIT AND Apache-2.0No key
Gives current time and converts times between IANA timezones.
OfficialPythonMIT AND Apache-2.0No key
Checks replies to questions about using Claude products against the official guidance before answering.
OfficialSkillApache-2.0No key
Generative art with p5.js using seeded randomness, flow fields, particle systems and adjustable parameters.
OfficialSkillApache-2.0No key
Requires a design-first pass before creative work such as new features, components or behavior changes.
SkillMITNo key
Applies Anthropic's official brand colors and typography to artifacts that should match its look and feel.
OfficialSkillApache-2.0No key
Makes static visual art and posters as PNG or PDF files, guided by a written design philosophy.
OfficialSkillApache-2.0No key
Diagnosis loop for hard bugs and performance regressions when a user reports something broken or slow.
SkillMITNo key
After a substantive answer, adds two or three follow-up questions tied to its content; runs at most once per chat.
OfficialSkillApache-2.0No key
Guides intentional UI visual design, covering aesthetic direction, typography and choices that avoid generic templates.
OfficialSkillApache-2.0No key
Templates and guidance for internal company messages such as status reports, leadership updates and incident reports.
OfficialSkillApache-2.0No key
Guide for building high-quality MCP servers in Python (FastMCP) or TypeScript that expose external APIs to LLMs.
OfficialSkillApache-2.0No key
React and Next.js performance guidelines for writing, reviewing and refactoring components and data fetching.
OfficialSkillMITNo key
Creates, edits and benchmarks Agent Skills, with evals and description tuning for better triggering.
OfficialSkillApache-2.0No key
Who stands behind it
