"Understanding Prompts or Prompt Engineering" matching MCP connectors:

Create and preview self-contained web apps in iPhone, Duo, iPad, or Headless views. Seven starter tools and games, browser-local code saving, and HTML export. Free; no API key. Tools: open_ipadian, preview_app. Interactive previews require MCP Apps support. Independent web simulator; no native iOS apps or cloud sync. Setup and Claude/Codex downloads: https://os.ipadian.net/plugin/

40+ developer tools from Context7, Code Runner, Python Execute, NPM Sentinel, PlantUML, and Microsoft Learn. Docs lookup, code execution, security scanning. Starts at $0.01/call. Get your API key at app.xpay.sh or xpay.tools

Engineering calculation MCP server for oil and gas engineering applications.

Reasoning, code, anti-deception, memory harness MCP tools. Stdio or HTTPS api.ejentum.com/mcp

Expert know-how (kits) any AI can read or run, always the latest version.

Run Python code from natural language prompts, with optional PyPI package install.

Pay-per-call DNS/TLS truth and npm/PyPI breakage checks via x402. No account or API key.

Blender-as-a-service for agents: search 3D assets, run Blender Python, or brief the studio agent.

Remote MCP server for Mythex, the AI app builder. Lets Claude, Cursor or Codex create projects in a cloud sandbox, edit files, run commands, preview, attach a database, and publish to a public URL. OAuth sign-in; tool calls need a Mythex Pro account.