Skills, prompts, AGENTS.md files and MCP servers that Codex reads. Skills are shared with Claude Code; the rest is Codex-native. 273,256 indexed, measured the same four ways as everything else here.
mirage-security/knowbe4-mcp-server
MCP server Claude CodeCodexCursor +2
MCP server for KnowBe4 Reporting REST API. Runs locally from the knowbe4-mcp-server npm package.
MCP server Claude CodeCodexCursor +2
MCP server for fast Mermaid diagrams syntax checking. Runs locally from the @vtomilin/mermaider npm package.
MCP server Claude CodeCodexCursor +2
MCP server "kickbacks-mcp" as configured in Manas8114/kickbacks-mcp. Runs locally from the kickbacks-mcp Python package.
MCP server Claude CodeCodexCursor +2
Excel MCP Server for manipulating Excel files. Runs locally from the excel-mcp-server Python package.
MCP server Claude CodeCodexCursor +2
MCP server "pds-mcp-server" as configured in NASA-PDS/pds-mcp-server. Runs locally from the pds-mcp-server Python package.
MCP server Claude CodeCodexCursor +2
MCP Server for Qianxin Hunter cyberspace mapping. Runs locally from the hunter-mcp Python package.
Skill Codex
Expert GeoGebra construction workflow for Claude Code, Codex, and other AI agents using the GeoGebra MCP server. Use when the user asks to draw or edit GeoGebra diagrams, graph functions, build Euclidean geometry, create 3D objects, use CAS-style algebra, make data/probability visuals, animate sliders, create…
MCP server Claude CodeCodexCursor +2
MCP server "db-explorer", hosted remotely at db-explorer-mcp.fastmcp.app, as configured in AYUSH-148/DB-Explorer-MCP.
MCP server Claude CodeCodexCursor +2
SEI MCP: Model Context Protocol server for SEI blockchain only. All APIs are prefixed with SEI and support only SEI. Runs locally from the sei-mcp npm package.
MCP server Claude CodeCodexCursor +2
MCP server "fantastical-cli" as configured in ramm/fantastical-cli. Runs locally from the fantastical-cli Python package.
PSPDFKit/nutrient-pdf-mcp-server
MCP server Claude CodeCodexCursor +2
MCP server "nutrient-pdf-mcp" as configured in PSPDFKit/nutrient-pdf-mcp-server. Runs locally from the nutrient-pdf-mcp Python package.
Skill Claude CodeCodex
A tool for deeply analysing a Zhihu answer, where Zhihu is a Chinese question-and-answer platform. Given an answer URL, it reads the answer, gathers author details and comments, and summarises the discussion.
MCP server Claude CodeCodexCursor +2
MCP server "hyprland-mcp" as configured in alderban107/hyprland-mcp. Runs locally from the hyprland-mcp Python package.
Skill Claude CodeCodex
Use when an agent is participating in a UNITARES dialectic session — paused and needs to submit a thesis, reviewing another agent's thesis, or synthesizing conditions for resolution. Covers structured argumentation and convergence.
MCP server Claude CodeCodexCursor +2
MCP server for multiple Gmail accounts. Per-account permission tiers, two-phase confirmation on every send, and prompt-injection defenses on untrusted mail content. Runs locally from the gmail-multi-mcp npm package.
PhoenixChenLu/zotero-local-mcp-bridge
Skill Codex
A Chinese-language workflow for managing a local Zotero library through a controlled connection. Zotero is a reference manager for storing papers, books, notes, files, and citations.
Skill Claude CodeCodex
Use when the user uploads an oil & gas dataroom — a zip or set of acquisition/divestiture files (lease operating statements, check stubs, AFEs, production reports, title, division orders, a teaser or overview) — and wants it turned into structured data for deal valuation.
MCP server Claude CodeCodexCursor +2
MCP server "usp-mcp" as configured in iDavi/usp-mcp. Runs locally from the usp-mcp Python package.
DerechoVirtual/mcp-cendoj-sentencias
MCP server Claude CodeCodexCursor +2
MCP server "cendoj-sentencias-mcp" as configured in DerechoVirtual/mcp-cendoj-sentencias. Runs locally from the cendoj-sentencias-mcp Python package.
somethingforheheda/computer-use-mac-mcp
MCP server Claude CodeCodexCursor +2
MCP server "computer-use-mac-mcp" as configured in somethingforheheda/computer-use-mac-mcp. Runs locally from the computer-use-mac-mcp npm package.
MCP server Claude CodeCodexCursor +2
A local MCP server for Baltamatica, a scientific-computing engine. MCP is a standard way for AI tools to call external programs.
MCP server Claude CodeCodexCursor +2
Free Search MCP Server - A Model Context Protocol server for web search using DuckDuckGo. Runs locally from the freesearch-mcpserver npm package.
MikeLi-28/Substance-3D-Designer-MCP
MCP server Claude CodeCodexCursor +2
MCP server "substance-designer-mcp" as configured in MikeLi-28/Substance-3D-Designer-MCP. Runs locally from the substance-designer-mcp Python package.
Imanity-Software/spark-profiler-mcp
MCP server Claude CodeCodexCursor +2
MCP server that reads lucko/spark profiler files (.sparkprofile/.sparkheap/.sparkhealth) and gives Minecraft server performance analysis + tuning advice. Runs locally from the spark-profiler-mcp npm package.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: