n8n MCP Community

browserbasehq-mcp-browserbase

Provides cloud browser automation capabilities using Stagehand and Browserbase, enabling LLMs to i…

3.4K stars

Gmail-MCP-Server

Lean Gmail MCP server with auto authentication support

214 stars

Crawlie

Technical SEO + GEO (AI-search) site audits: hosted crawls, prioritized fixes, report diffs.

96 stars

modernize-harden

Security vulnerability scan with a reviewable remediation patch — OWASP, CWE, CVE, secrets, injection

32.8K stars

modernize-status

Where am I in the modernization workflow — artifact inventory, staleness, secrets hygiene, next step

32.8K stars

help

Get help with FiftyOne skills, understand available workflows, and troubleshoot setup issues

32.8K stars

claude-security

Deep vulnerability scanning of your own code, run entirely inside your Claude Code session at a chosen effort tier, with every finding challenged before it is reported and the verification tally computed in code. Turns surviving findings into targeted patches, each verified by a panel of agents, tha

32.9K stars

claude-md-management

Tools to maintain and improve CLAUDE.md files - audit quality, capture session learnings, and keep project memory current.

32.9K stars

math-olympiad

Solve competition math (IMO, Putnam, USAMO) with adversarial verification that catches what self-verification misses. Fresh-context verifiers attack proofs with specific failure patterns. Calibrated abstention over bluffing.

32.9K stars

ECC

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

235.3K stars

claude-md-improver

Audit and improve CLAUDE.md files in repositories. Use when user asks to check, audit, update, improve, or fix CLAUDE.md files. Scans for all CLAUDE.md files, evaluates quality against templates, outputs quality report, then makes targeted updates. Also use when the user mentions "CLAUDE.md maintena

32.8K stars

Anthropic-Cybersecurity-Skills

817 structured cybersecurity skills for AI agents · Mapped to 6 frameworks: MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND, NIST AI RMF & MITRE F3 (Fight Fraud) · agentskills.io standard · Works with Claude Code, GitHub Copilot, Codex CLI, Cursor, Gemini CLI & 20+ platforms · 29 security domains · Apache 2.0

26.9K stars

ECC

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

235.3K stars

claude-security

The dedicated Claude Security orchestrator. Hand it an unattended job — "fully scan this repository and patch what you find; I understand it will use a lot of tokens" — and it runs the whole thing itself: capturing the revision, driving the multi-agent scan through the claude-security:scan workflow,

32.8K stars

scan-verifier

Restricted read-only verifier dispatched by the Claude Security scan workflow to vote on one candidate finding; not for direct invocation.

32.8K stars