Catalog
Every x402, MPP, MCP, and skill listing we've indexed, normalized, and enriched.
Multi-Axis Code Review and Quality Gates
Run a structured pre-merge review across correctness, readability, architecture, security, and performance instead of relying on a shallow spot check.
MSW API Mocking Skill for Frontend and Integration Tests
Use this skill when an agent needs to stand up request handlers with Mock Service Worker, isolate network behavior in local development or tests, and keep mocks faithful to real endpoints. It is a task-focused mocking skill built around MSW, not a generic product card.
Microsoft Outlook Mail Sorter
Automatically triages Microsoft Outlook emails using the Microsoft Graph API /me/messages endpoint. Applies intelligent categorization with customizable rules and moves messages to appropriate folders.
Microsoft Outlook Calendar Sync Agent
Synchronizes calendar events bidirectionally using the Microsoft Graph API /me/calendar/events endpoint. Handles delta queries with deltaToken for incremental sync, manages recurrence patterns, and resolves timezone conflicts.
MoviePy Python Video Editing Library
MoviePy is a Python library for video editing — cuts, concatenations, title insertions, compositing, and custom effects. It reads and writes all common audio and video formats including GIF, powered by FFmpeg under the hood.
Moonshine Voice On-Device Speech Recognition and Voice Commands
Moonshine Voice is a fast on-device speech recognition library for interactive voice applications. This skill helps agents install the Python package, load supported language models, transcribe live microphone input, and wire transcript events into local voice-command workflows.
Monolith Web Page Archiver and Single-File Bundler
Monolith is a CLI tool and Rust library that saves complete web pages as a single HTML file by embedding CSS, images, JavaScript, and fonts as data URLs. It produces self-contained HTML5 documents that render correctly offline without external dependencies.
Monitor coding-agent token spend with Splitrail
Track token burn, spend, and model mix across multiple coding-agent tools from one local monitoring workflow.
Monitor Claude Code and Codex local usage logs for spend, model mix, and session burn with ccusage
Use ccusage when an agent operator needs to turn local Claude Code or Codex usage logs into spend and usage reports instead of manually reading raw JSONL files.
MongoDB MCP Server
The open catalog of AI agent skills — 2,000+ security-scanned skills for Claude Code, Cursor, Codex, and more.
MongoDB MCP Server for Database and Atlas Management
The official MongoDB MCP server connects AI agents to MongoDB databases and Atlas clusters through the Model Context Protocol, enabling structured queries, collection management, Atlas API operations, and aggregation pipelines with built-in authentication and access control.
Mods AI-Powered Command-Line LLM Interface by Charmbracelet
Mods is a CLI tool by Charmbracelet that pipes stdin directly to large language models. It enables AI-powered text processing, code review, commit message generation, and data transformation from the terminal with support for OpenAI, Anthropic, and local models.
Model user behavior and run distributed load tests before backend changes face real traffic with Locust
Script realistic user flows in Python and fan them out across workers so agents can pressure-test services before rollout.
Mockoon Local Mock API Server and CLI for API Development
Mockoon is the fastest way to run mock REST APIs locally. It provides a desktop application and a CLI for creating mock API servers with dynamic response templates, proxy mode, OpenAPI import, and request logging — no account required, fully open source.
Mock AI app dependencies for deterministic local and CI tests
Use AiMock when an agent needs reproducible tests around LLM APIs, MCP tools, A2A flows, vector stores, search, or moderation services without depending on live providers.
MLT Multimedia Framework for Video Editing and Processing
MLT is an open-source LGPL multimedia framework designed for video editing. It provides a toolkit and the melt command-line tool for non-linear video editing, transitions, effects, and rendering. MLT powers Shotcut, Kdenlive, and other video editors.
MkDocs Project Documentation Generator
MkDocs is a fast, simple, and elegant static site generator designed for building project documentation from Markdown files. Configured with a single YAML file, it transforms documentation source files into professional, navigable websites with built-in themes and plugin support.
mkcert Zero-Config Local Development TLS Certificate Generator
mkcert is a zero-configuration CLI tool by Filippo Valsorda that creates locally-trusted development certificates. It automatically installs a local CA in the system root store and generates TLS certificates for localhost, custom domains, and IP addresses without manual PKI manag
Mitosis Cross-Framework Component Compiler by Builder.io
Mitosis lets you write UI components once and compile them to React, Vue, Angular, Svelte, Solid, Qwik, and more. Built by Builder.io, it enables maintaining a single component codebase across all major frontend frameworks.
mitmproxy Interactive HTTPS Proxy for Debugging and Security Testing
mitmproxy is an interactive, SSL/TLS-capable intercepting HTTP proxy for penetration testers and software developers. It supports HTTP/1, HTTP/2, HTTP/3, and WebSockets, offering console, command-line, and web-based interfaces for intercepting, inspecting, modifying, and replayin
Mise Dev Tool Version Manager
Use mise (mise-en-place) to manage development tool versions, environment variables, and task running from a single configuration file. Replaces asdf, nvm, pyenv, rbenv, and direnv in one tool.
Mirror OpenClaw workspaces and stream encrypted backups with openclaw-workspace-sync
Sync an OpenClaw workspace to your own cloud storage or push encrypted agent-system backups with OpenClaw-aware mailbox, mirror, and bisync modes.
Mirror GitHub issues, pull requests, commits, and releases into SQLite for offline analysis
Use dogsheep/github-to-sqlite when an agent needs a local, queryable snapshot of GitHub activity instead of bouncing through the web UI or ad hoc API calls. The agent authenticates once, pulls the exact GitHub objects it needs, and leaves behind a SQLite database that can be insp
Mirror and back up OpenClaw workspaces to your own storage with openclaw-workspace-sync
Lets an OpenClaw agent sync its workspace to cloud storage in mailbox, mirror, or bisync mode, and optionally push encrypted full-system backups to an rclone backend.